diff --git a/packages/sql-parser/base/fromClauseParser.js b/packages/sql-parser/base/fromClauseParser.js
index bb063b13..a9f03b8e 100644
--- a/packages/sql-parser/base/fromClauseParser.js
+++ b/packages/sql-parser/base/fromClauseParser.js
@@ -284,44 +284,49 @@ function peg$parse(input, options) {
   var peg$c105 = "not";
   var peg$c106 = "and";
   var peg$c107 = "or";
-  var peg$c108 = "count";
-  var peg$c109 = "max";
-  var peg$c110 = "min";
-  var peg$c111 = "sum";
-  var peg$c112 = "avg";
-  var peg$c113 = "cast";
-  var peg$c114 = "recursive";
-  var peg$c115 = "foreign key";
-  var peg$c116 = "references";
-  var peg$c117 = "index";
-  var peg$c118 = "cascade";
-  var peg$c119 = "set null";
-  var peg$c120 = "set default";
-  var peg$c121 = "restrict";
-  var peg$c122 = "no action";
-  var peg$c123 = "type";
-  var peg$c124 = "enum";
-  var peg$c125 = "range";
-  var peg$c126 = "[";
-  var peg$c127 = "]";
-  var peg$c128 = "{";
-  var peg$c129 = "}";
-  var peg$c130 = "--";
-  var peg$c131 = "/*";
-  var peg$c132 = "*/";
-  var peg$c133 = ";";
-  var peg$c134 = "current_user";
-  var peg$c135 = "current_date";
-  var peg$c136 = "current_time";
-  var peg$c137 = "current_timestamp";
-  var peg$c138 = "localtime";
-  var peg$c139 = "localtimestamp";
-  var peg$c140 = "session_user";
-  var peg$c141 = "system_user";
-  var peg$c142 = "user";
-  var peg$c143 = "$";
-  var peg$c144 = "return";
-  var peg$c145 = ":=";
+  var peg$c108 = "to";
+  var peg$c109 = "count";
+  var peg$c110 = "max";
+  var peg$c111 = "min";
+  var peg$c112 = "sum";
+  var peg$c113 = "avg";
+  var peg$c114 = "cast";
+  var peg$c115 = "recursive";
+  var peg$c116 = "foreign key";
+  var peg$c117 = "references";
+  var peg$c118 = "index";
+  var peg$c119 = "cascade";
+  var peg$c120 = "set null";
+  var peg$c121 = "set default";
+  var peg$c122 = "restrict";
+  var peg$c123 = "no action";
+  var peg$c124 = "type";
+  var peg$c125 = "enum";
+  var peg$c126 = "range";
+  var peg$c127 = "[";
+  var peg$c128 = "]";
+  var peg$c129 = "{";
+  var peg$c130 = "}";
+  var peg$c131 = "--";
+  var peg$c132 = "/*";
+  var peg$c133 = "*/";
+  var peg$c134 = ";";
+  var peg$c135 = "current_user";
+  var peg$c136 = "current_date";
+  var peg$c137 = "current_time";
+  var peg$c138 = "current_timestamp";
+  var peg$c139 = "localtime";
+  var peg$c140 = "localtimestamp";
+  var peg$c141 = "session_user";
+  var peg$c142 = "system_user";
+  var peg$c143 = "user";
+  var peg$c144 = "$";
+  var peg$c145 = "return";
+  var peg$c146 = ":=";
+  var peg$c147 = "session";
+  var peg$c148 = "authorization";
+  var peg$c149 = "search_path";
+  var peg$c150 = "@";
 
   var peg$r0 = /^[^)]/;
   var peg$r1 = /^[^`]/;
@@ -466,45 +471,50 @@ function peg$parse(input, options) {
   var peg$e122 = peg$literalExpectation("NOT", true);
   var peg$e123 = peg$literalExpectation("AND", true);
   var peg$e124 = peg$literalExpectation("OR", true);
-  var peg$e125 = peg$literalExpectation("COUNT", true);
-  var peg$e126 = peg$literalExpectation("MAX", true);
-  var peg$e127 = peg$literalExpectation("MIN", true);
-  var peg$e128 = peg$literalExpectation("SUM", true);
-  var peg$e129 = peg$literalExpectation("AVG", true);
-  var peg$e130 = peg$literalExpectation("CAST", true);
-  var peg$e131 = peg$literalExpectation("RECURSIVE", true);
-  var peg$e132 = peg$literalExpectation("FOREIGN KEY", true);
-  var peg$e133 = peg$literalExpectation("REFERENCES", true);
-  var peg$e134 = peg$literalExpectation("INDEX", true);
-  var peg$e135 = peg$literalExpectation("CASCADE", true);
-  var peg$e136 = peg$literalExpectation("SET NULL", true);
-  var peg$e137 = peg$literalExpectation("SET DEFAULT", true);
-  var peg$e138 = peg$literalExpectation("RESTRICT", true);
-  var peg$e139 = peg$literalExpectation("NO ACTION", true);
-  var peg$e140 = peg$literalExpectation("TYPE", true);
-  var peg$e141 = peg$literalExpectation("ENUM", true);
-  var peg$e142 = peg$literalExpectation("RANGE", true);
-  var peg$e143 = peg$literalExpectation("[", false);
-  var peg$e144 = peg$literalExpectation("]", false);
-  var peg$e145 = peg$literalExpectation("{", false);
-  var peg$e146 = peg$literalExpectation("}", false);
-  var peg$e147 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false);
-  var peg$e148 = peg$literalExpectation("--", false);
-  var peg$e149 = peg$literalExpectation("/*", false);
-  var peg$e150 = peg$literalExpectation("*/", false);
-  var peg$e151 = peg$literalExpectation(";", false);
-  var peg$e152 = peg$literalExpectation("CURRENT_USER", true);
-  var peg$e153 = peg$literalExpectation("CURRENT_DATE", true);
-  var peg$e154 = peg$literalExpectation("CURRENT_TIME", true);
-  var peg$e155 = peg$literalExpectation("CURRENT_TIMESTAMP", true);
-  var peg$e156 = peg$literalExpectation("LOCALTIME", true);
-  var peg$e157 = peg$literalExpectation("LOCALTIMESTAMP", true);
-  var peg$e158 = peg$literalExpectation("SESSION_USER", true);
-  var peg$e159 = peg$literalExpectation("SYSTEM_USER", true);
-  var peg$e160 = peg$literalExpectation("USER", true);
-  var peg$e161 = peg$literalExpectation("$", false);
-  var peg$e162 = peg$literalExpectation("return", true);
-  var peg$e163 = peg$literalExpectation(":=", false);
+  var peg$e125 = peg$literalExpectation("TO", true);
+  var peg$e126 = peg$literalExpectation("COUNT", true);
+  var peg$e127 = peg$literalExpectation("MAX", true);
+  var peg$e128 = peg$literalExpectation("MIN", true);
+  var peg$e129 = peg$literalExpectation("SUM", true);
+  var peg$e130 = peg$literalExpectation("AVG", true);
+  var peg$e131 = peg$literalExpectation("CAST", true);
+  var peg$e132 = peg$literalExpectation("RECURSIVE", true);
+  var peg$e133 = peg$literalExpectation("FOREIGN KEY", true);
+  var peg$e134 = peg$literalExpectation("REFERENCES", true);
+  var peg$e135 = peg$literalExpectation("INDEX", true);
+  var peg$e136 = peg$literalExpectation("CASCADE", true);
+  var peg$e137 = peg$literalExpectation("SET NULL", true);
+  var peg$e138 = peg$literalExpectation("SET DEFAULT", true);
+  var peg$e139 = peg$literalExpectation("RESTRICT", true);
+  var peg$e140 = peg$literalExpectation("NO ACTION", true);
+  var peg$e141 = peg$literalExpectation("TYPE", true);
+  var peg$e142 = peg$literalExpectation("ENUM", true);
+  var peg$e143 = peg$literalExpectation("RANGE", true);
+  var peg$e144 = peg$literalExpectation("[", false);
+  var peg$e145 = peg$literalExpectation("]", false);
+  var peg$e146 = peg$literalExpectation("{", false);
+  var peg$e147 = peg$literalExpectation("}", false);
+  var peg$e148 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false);
+  var peg$e149 = peg$literalExpectation("--", false);
+  var peg$e150 = peg$literalExpectation("/*", false);
+  var peg$e151 = peg$literalExpectation("*/", false);
+  var peg$e152 = peg$literalExpectation(";", false);
+  var peg$e153 = peg$literalExpectation("CURRENT_USER", true);
+  var peg$e154 = peg$literalExpectation("CURRENT_DATE", true);
+  var peg$e155 = peg$literalExpectation("CURRENT_TIME", true);
+  var peg$e156 = peg$literalExpectation("CURRENT_TIMESTAMP", true);
+  var peg$e157 = peg$literalExpectation("LOCALTIME", true);
+  var peg$e158 = peg$literalExpectation("LOCALTIMESTAMP", true);
+  var peg$e159 = peg$literalExpectation("SESSION_USER", true);
+  var peg$e160 = peg$literalExpectation("SYSTEM_USER", true);
+  var peg$e161 = peg$literalExpectation("USER", true);
+  var peg$e162 = peg$literalExpectation("$", false);
+  var peg$e163 = peg$literalExpectation("return", true);
+  var peg$e164 = peg$literalExpectation(":=", false);
+  var peg$e165 = peg$literalExpectation("session", true);
+  var peg$e166 = peg$literalExpectation("authorization", true);
+  var peg$e167 = peg$literalExpectation("search_path", true);
+  var peg$e168 = peg$literalExpectation("@", false);
 
   var peg$f0 = function() { return true; };
   var peg$f1 = function(ast, tail) {
@@ -1175,12 +1185,12 @@ function peg$parse(input, options) {
   var peg$f158 = function() { return 'NOT';      };
   var peg$f159 = function() { return 'AND';      };
   var peg$f160 = function() { return 'OR';       };
-  var peg$f161 = function() { return 'COUNT';    };
-  var peg$f162 = function() { return 'MAX';      };
-  var peg$f163 = function() { return 'MIN';      };
-  var peg$f164 = function() { return 'SUM';      };
-  var peg$f165 = function() { return 'AVG';      };
-  var peg$f166 = function(val) { return makeKeywordNode(val, location()) };
+  var peg$f161 = function() { return 'TO';      };
+  var peg$f162 = function() { return 'COUNT';    };
+  var peg$f163 = function() { return 'MAX';      };
+  var peg$f164 = function() { return 'MIN';      };
+  var peg$f165 = function() { return 'SUM';      };
+  var peg$f166 = function() { return 'AVG';      };
   var peg$f167 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f168 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f169 = function(val) { return makeKeywordNode(val, location()) };
@@ -1193,32 +1203,33 @@ function peg$parse(input, options) {
   var peg$f176 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f177 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f178 = function(val) { return makeKeywordNode(val, location()) };
-  var peg$f179 = function() { return true; };
-  var peg$f180 = function(s) {
+  var peg$f179 = function(val) { return makeKeywordNode(val, location()) };
+  var peg$f180 = function() { return true; };
+  var peg$f181 = function(s) {
       return {
         stmt : s,
       }
     };
-  var peg$f181 = function(va, e) {
+  var peg$f182 = function(va, e) {
     return {
       type : 'assign',
       left : va,
       right: e
     }
   };
-  var peg$f182 = function(e) {
+  var peg$f183 = function(e) {
   return {
     type : 'return',
     expr: e
   }
 };
-  var peg$f183 = function(head, tail) {
+  var peg$f184 = function(head, tail) {
       return createBinaryExprChain(head, tail);
     };
-  var peg$f184 = function(head, tail) {
+  var peg$f185 = function(head, tail) {
       return createBinaryExprChain(head, tail);
     };
-  var peg$f185 = function(lt, op, rt, expr) {
+  var peg$f186 = function(lt, op, rt, expr) {
       return {
         type    : 'join',
         ltable  : lt, 
@@ -1227,11 +1238,11 @@ function peg$parse(input, options) {
         on      : expr
       }
     };
-  var peg$f186 = function(e) { 
+  var peg$f187 = function(e) { 
       e.paren = true; 
       return e; 
     };
-  var peg$f187 = function(name, l) {
+  var peg$f188 = function(name, l) {
       //compatible with original func_call
       return {
         type : 'function',
@@ -1243,23 +1254,23 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f188 = function(value) {
+  var peg$f189 = function(value) {
       return {
         type : 'special_system_function',
         name : value,
         location: location(),
       }
     };
-  var peg$f189 = function(head, tail) {
+  var peg$f190 = function(head, tail) {
       return createList(head, tail);
     };
-  var peg$f190 = function(l) {
+  var peg$f191 = function(l) {
     return {
       type : 'array',
       value : l
     }
   };
-  var peg$f191 = function(name, m) {
+  var peg$f192 = function(name, m) {
     return {
       type : 'var',
       name : name,
@@ -1267,7 +1278,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f192 = function(name, m) {
+  var peg$f193 = function(name, m) {
     return {
       type : 'var_pg_promise',
       name : name,
@@ -1275,14 +1286,14 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f193 = function(l) {
+  var peg$f194 = function(l) {
     var s = [];
     for (var i = 0; i < l.length; i++) {
       s.push(l[i][1]); 
     }
     return s;
   };
-  var peg$f194 = function(with_clause, val, t, w) {
+  var peg$f195 = function(with_clause, val, t, w) {
       return {
         type    : 'delete',
         with    : with_clause,
@@ -1290,7 +1301,7 @@ function peg$parse(input, options) {
         where   : w
       }
     };
-  var peg$f195 = function(db, t) {
+  var peg$f196 = function(db, t) {
       return  {
         type: 'table',
         db    : db,
@@ -1298,7 +1309,7 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f196 = function(t) {
+  var peg$f197 = function(t) {
       return  {
         type: 'table',
         db    : '',
@@ -1306,7 +1317,7 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f197 = function(keyword, if_exists_keyword, table) {
+  var peg$f198 = function(keyword, if_exists_keyword, table) {
       return {
         type: 'drop_table',
         keyword: keyword,
@@ -1314,7 +1325,7 @@ function peg$parse(input, options) {
         table: table
       }
     };
-  var peg$f198 = function(keyword, table) {
+  var peg$f199 = function(keyword, table) {
       return {
         type: 'drop_table',
         keyword: keyword,
@@ -1322,14 +1333,14 @@ function peg$parse(input, options) {
         table: table
       }
     };
-  var peg$f199 = function(val) {
+  var peg$f200 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f200 = function(keyword, table, as, select) {
+  var peg$f201 = function(keyword, table, as, select) {
       return {
         type: 'create_table',
         keyword: keyword,
@@ -1339,7 +1350,7 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f201 = function(keyword, if_not_exists_keyword, table, fields) {
+  var peg$f202 = function(keyword, if_not_exists_keyword, table, fields) {
       return {
         type: 'create_table',
         keyword: keyword,
@@ -1349,7 +1360,7 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f202 = function(keyword, table, fields) {
+  var peg$f203 = function(keyword, table, fields) {
       return {
         type: 'create_table',
         if_not_exists: null,
@@ -1359,24 +1370,24 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f203 = function(val) {
+  var peg$f204 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f204 = function(val) {
+  var peg$f205 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f205 = function(head, tail) {
+  var peg$f206 = function(head, tail) {
   return createList(head, tail);
 };
-  var peg$f206 = function(name, type, constraints) {
+  var peg$f207 = function(name, type, constraints) {
     return {
       type: 'field',
       name: name,
@@ -1385,7 +1396,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f207 = function(name, type) {
+  var peg$f208 = function(name, type) {
     return {
       type: 'field',
       name: name,
@@ -1394,7 +1405,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f208 = function(k1, col_head, col_tail, k2, ref_table, ref_col_head, ref_col_tail, on) {
+  var peg$f209 = function(k1, col_head, col_tail, k2, ref_table, ref_col_head, ref_col_tail, on) {
     return {
       type: 'foreign_key',
       foreign_keyword: k1,
@@ -1406,7 +1417,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f209 = function(on, trigger, action) {
+  var peg$f210 = function(on, trigger, action) {
     return {
       type: 'foreign_key_on',
       on_keyword: on,
@@ -1415,7 +1426,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f210 = function(k, col_head, col_tail) {
+  var peg$f211 = function(k, col_head, col_tail) {
     return {
       type: 'primary_key',
       keyword: k,
@@ -1423,7 +1434,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f211 = function(name, args_head, args_tail) {
+  var peg$f212 = function(name, args_head, args_tail) {
     return {
       type: 'field_data_type',
       name: name,
@@ -1431,7 +1442,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f212 = function(name) {
+  var peg$f213 = function(name) {
     return {
       type: 'field_data_type',
       name: name,
@@ -1439,50 +1450,47 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f213 = function(head, tail) {
+  var peg$f214 = function(head, tail) {
     return createList(head, tail, 1);
   };
-  var peg$f214 = function(k) {
+  var peg$f215 = function(k) {
   return { type: 'constraint_not_null', keyword: k, location: location() }
 };
-  var peg$f215 = function(k) {
+  var peg$f216 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f216 = function(k) {
+  var peg$f217 = function(k) {
   return { type: 'constraint_primary_key', keyword: k, location: location() }
 };
-  var peg$f217 = function(k) {
+  var peg$f218 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f218 = function(k) {
+  var peg$f219 = function(k) {
   return { type: 'constraint_unique', keyword: k, location: location() }
 };
-  var peg$f219 = function(k) {
+  var peg$f220 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f220 = function(k) {
+  var peg$f221 = function(k) {
   return { type: 'constraint_auto_increment', keyword: k, location: location() }
 };
-  var peg$f221 = function(k) {
+  var peg$f222 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f222 = function(g, opt, data, seq) {
+  var peg$f223 = function(g, opt, data, seq) {
     return { type: 'constraint_generated', option: opt, data_type: data, sequence_options: seq }
 };
-  var peg$f223 = function(k) {
+  var peg$f224 = function(k) {
   return { type: 'constraint_generated_option', option: 'ALWAYS', keyword: k }
 };
-  var peg$f224 = function(k) {
+  var peg$f225 = function(k) {
   return { type: 'constraint_generated_option', option: 'BY_DEFAULT', keyword: k }
 };
-  var peg$f225 = function(k) {
+  var peg$f226 = function(k) {
   return { type: 'constraint_generated_option', option: 'BY_DEFAULT_ON_NULL', keyword: k }
 };
-  var peg$f226 = function(k, value) {
+  var peg$f227 = function(k, value) {
       return { type: 'constraint_default', keyword: k, value: value, location: location() }
-};
-  var peg$f227 = function(k) {
-  return { type: 'keyword', value: k && k[0], location: location() }
 };
   var peg$f228 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
@@ -1490,49 +1498,52 @@ function peg$parse(input, options) {
   var peg$f229 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f230 = function(val) {
+  var peg$f230 = function(k) {
+  return { type: 'keyword', value: k && k[0], location: location() }
+};
+  var peg$f231 = function(val) {
   return { type: 'sequence_option_data_type', value: val, location: location() }
 };
-  var peg$f231 = function(s) {
+  var peg$f232 = function(s) {
   return s[2]
 };
-  var peg$f232 = function(head, tail) {
+  var peg$f233 = function(head, tail) {
     return createList(head, tail, 1);
   };
-  var peg$f233 = function(val) {
-  return { type: 'sequence_option_increment', value: val, location: location() }
-};
   var peg$f234 = function(val) {
   return { type: 'sequence_option_increment', value: val, location: location() }
 };
   var peg$f235 = function(val) {
-  return { type: 'sequence_option_maxvalue', value: val, location: location() }
+  return { type: 'sequence_option_increment', value: val, location: location() }
 };
   var peg$f236 = function(val) {
   return { type: 'sequence_option_maxvalue', value: val, location: location() }
 };
-  var peg$f237 = function() {
-  return { type: 'sequence_option_no_maxvalue', location: location() }
+  var peg$f237 = function(val) {
+  return { type: 'sequence_option_maxvalue', value: val, location: location() }
 };
   var peg$f238 = function() {
+  return { type: 'sequence_option_no_maxvalue', location: location() }
+};
+  var peg$f239 = function() {
   return { type: 'sequence_option_no_minvalue', location: location() }
 };
-  var peg$f239 = function(val) {
+  var peg$f240 = function(val) {
   return { type: 'sequence_option_cache', value: val, location: location() }
 };
-  var peg$f240 = function() {
+  var peg$f241 = function() {
   return { type: 'sequence_option_cycle', location: location() }
 };
-  var peg$f241 = function() {
+  var peg$f242 = function() {
   return { type: 'sequence_option_no_cycle', location: location() }
 };
-  var peg$f242 = function(val) {
+  var peg$f243 = function(val) {
   return { type: 'sequence_option_owned_by', value: val, location: location() }
 };
-  var peg$f243 = function() {
+  var peg$f244 = function() {
   return { type: 'sequence_option_owned_by_none', location: location() }
 };
-  var peg$f244 = function(keyword, table, command) {
+  var peg$f245 = function(keyword, table, command) {
       return {
         type: 'alter_table',
         keyword: keyword,
@@ -1540,14 +1551,14 @@ function peg$parse(input, options) {
         command: command
       }
     };
-  var peg$f245 = function(val) {
+  var peg$f246 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f246 = function(keyword, field) {
+  var peg$f247 = function(keyword, field) {
       return {
         type: 'alter_table_add_column',
         keyword: keyword,
@@ -1555,15 +1566,15 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f247 = function(val) {
+  var peg$f248 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f248 = function(keyword) {error('EXPECTED COLUMN NAME')};
-  var peg$f249 = function(keyword, column) {
+  var peg$f249 = function(keyword) {error('EXPECTED COLUMN NAME')};
+  var peg$f250 = function(keyword, column) {
       return {
         type: 'alter_table_drop_column',
         keyword: keyword,
@@ -1571,15 +1582,15 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f250 = function(val) {
+  var peg$f251 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f251 = function(keyword) {error('EXPECTED COLUMN NAME')};
-  var peg$f252 = function(keyword, field) {
+  var peg$f252 = function(keyword) {error('EXPECTED COLUMN NAME')};
+  var peg$f253 = function(keyword, field) {
       return {
         type: 'alter_table_modify_column',
         keyword: keyword,
@@ -1587,14 +1598,14 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f253 = function(val) {
+  var peg$f254 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f254 = function(val) {
+  var peg$f255 = function(val) {
     const ary = val || []
     return {
       type: 'keyword',
@@ -1602,14 +1613,14 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f255 = function(val) {
+  var peg$f256 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f256 = function(kw_create, kw_index, kw_if_not_exists, name, kw_on, table, columns) {
+  var peg$f257 = function(kw_create, kw_index, kw_if_not_exists, name, kw_on, table, columns) {
     return {
       type: 'create_index',
       create_keyword: kw_create,
@@ -1623,7 +1634,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f257 = function(kw_create, kw_type, name, kw_as, fields) {
+  var peg$f258 = function(kw_create, kw_type, name, kw_as, fields) {
     return {
       type: 'create_type',
       type_variant: 'composite_type',
@@ -1635,7 +1646,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f258 = function(name, type) {
+  var peg$f259 = function(name, type) {
     return {
       type: 'composite_type_field',
       name: name,
@@ -1643,10 +1654,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f259 = function(head, tail) {
+  var peg$f260 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f260 = function(kw_create, kw_type, name, kw_as, kw_enum, values) {
+  var peg$f261 = function(kw_create, kw_type, name, kw_as, kw_enum, values) {
     return {
       type: 'create_type',
       type_variant: 'enum_type',
@@ -1659,10 +1670,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f261 = function(head, tail) {
+  var peg$f262 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f262 = function(kw_create, kw_type, name, kw_as, kw_range, values) {
+  var peg$f263 = function(kw_create, kw_type, name, kw_as, kw_range, values) {
     return {
       type: 'create_type',
       type_variant: 'range_type',
@@ -1675,7 +1686,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f263 = function(name, val) {
+  var peg$f264 = function(name, val) {
     if (val.type === 'number') {
       val = val.value
     }
@@ -1686,7 +1697,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f264 = function(name) {
+  var peg$f265 = function(name) {
     return {
       type: 'assign_value_expr',
       name: name,
@@ -1694,10 +1705,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f265 = function(head, tail) {
+  var peg$f266 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f266 = function(kw_create, kw_type, name, values) {
+  var peg$f267 = function(kw_create, kw_type, name, values) {
     return {
       type: 'create_type',
       type_variant: 'base_type',
@@ -1708,7 +1719,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f267 = function(kw_drop, kw_type, kw_if_exists, names, dependency_action) {
+  var peg$f268 = function(kw_drop, kw_type, kw_if_exists, names, dependency_action) {
     return {
       type: 'drop_type',
       drop_keyword: kw_drop,
@@ -1719,7 +1730,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f268 = function(keyword, if_exists_keyword, views, dependency_action) {
+  var peg$f269 = function(keyword, if_exists_keyword, views, dependency_action) {
       return {
         type: 'drop_view',
         keyword: keyword,
@@ -1728,22 +1739,54 @@ function peg$parse(input, options) {
         dependency_action: dependency_action || null,
       }
     };
-  var peg$f269 = function(head, tail) {
+  var peg$f270 = function(head, tail) {
       return createList(head, tail);
     };
-  var peg$f270 = function(view) {
+  var peg$f271 = function(view) {
       return  {
         type: 'view',
         value  : view,
       }
     };
-  var peg$f271 = function(val) {
+  var peg$f272 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
+  var peg$f273 = function(assignments) {
+      return {
+        type: 'set',
+        assignments: assignments,
+        location: location()
+      }
+    };
+  var peg$f274 = function(value) {
+      return {
+        type: 'session_authorization',
+        value: value,
+        location: location()
+      }
+    };
+  var peg$f275 = function(name, head, tail) {
+      return {
+        type: 'search_path',
+        value: createList(head, tail),
+        location: location()
+      }
+    };
+  var peg$f276 = function(head, tail) {
+      return createList(head, tail)
+    };
+  var peg$f277 = function(name, value) {
+      return {
+        type: 'variable',
+        name: name[1],
+        value: value,
+        location: location()
+      }
+    };
   var peg$currPos = 0;
   var peg$savedPos = 0;
   var peg$posDetailsCache = [{ line: 1, column: 1 }];
@@ -2007,6 +2050,9 @@ function peg$parse(input, options) {
                       s0 = peg$parsecreate_type_stmt();
                       if (s0 === peg$FAILED) {
                         s0 = peg$parsedrop_type_stmt();
+                        if (s0 === peg$FAILED) {
+                          s0 = peg$parseset_stmt();
+                        }
                       }
                     }
                   }
@@ -9602,13 +9648,13 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_COUNT() {
+  function peg$parseKW_TO() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c108) {
-      s1 = input.substr(peg$currPos, 5);
-      peg$currPos += 5;
+    if (input.substr(peg$currPos, 2).toLowerCase() === peg$c108) {
+      s1 = input.substr(peg$currPos, 2);
+      peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
       if (peg$silentFails === 0) { peg$fail(peg$e125); }
@@ -9639,13 +9685,13 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_MAX() {
+  function peg$parseKW_COUNT() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 3).toLowerCase() === peg$c109) {
-      s1 = input.substr(peg$currPos, 3);
-      peg$currPos += 3;
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c109) {
+      s1 = input.substr(peg$currPos, 5);
+      peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
       if (peg$silentFails === 0) { peg$fail(peg$e126); }
@@ -9676,7 +9722,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_MIN() {
+  function peg$parseKW_MAX() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9713,7 +9759,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_SUM() {
+  function peg$parseKW_MIN() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9750,7 +9796,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_AVG() {
+  function peg$parseKW_SUM() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9787,16 +9833,53 @@ function peg$parse(input, options) {
     return s0;
   }
 
+  function peg$parseKW_AVG() {
+    var s0, s1, s2, s3;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 3).toLowerCase() === peg$c113) {
+      s1 = input.substr(peg$currPos, 3);
+      peg$currPos += 3;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e130); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$currPos;
+      peg$silentFails++;
+      s3 = peg$parseident_start();
+      peg$silentFails--;
+      if (s3 === peg$FAILED) {
+        s2 = undefined;
+      } else {
+        peg$currPos = s2;
+        s2 = peg$FAILED;
+      }
+      if (s2 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s0 = peg$f166();
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
   function peg$parseKW_CAST() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c113) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c114) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e130); }
+      if (peg$silentFails === 0) { peg$fail(peg$e131); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9811,7 +9894,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f166(s1);
+        s0 = peg$f167(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9828,12 +9911,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c114) {
+    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c115) {
       s1 = input.substr(peg$currPos, 9);
       peg$currPos += 9;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e131); }
+      if (peg$silentFails === 0) { peg$fail(peg$e132); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9848,7 +9931,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f167(s1);
+        s0 = peg$f168(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9865,12 +9948,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c115) {
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c116) {
       s1 = input.substr(peg$currPos, 11);
       peg$currPos += 11;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e132); }
+      if (peg$silentFails === 0) { peg$fail(peg$e133); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9885,7 +9968,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f168(s1);
+        s0 = peg$f169(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9902,12 +9985,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 10).toLowerCase() === peg$c116) {
+    if (input.substr(peg$currPos, 10).toLowerCase() === peg$c117) {
       s1 = input.substr(peg$currPos, 10);
       peg$currPos += 10;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e133); }
+      if (peg$silentFails === 0) { peg$fail(peg$e134); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9922,7 +10005,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f169(s1);
+        s0 = peg$f170(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9939,12 +10022,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c117) {
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c118) {
       s1 = input.substr(peg$currPos, 5);
       peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e134); }
+      if (peg$silentFails === 0) { peg$fail(peg$e135); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9959,7 +10042,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f170(s1);
+        s0 = peg$f171(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9976,12 +10059,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c118) {
+    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c119) {
       s1 = input.substr(peg$currPos, 7);
       peg$currPos += 7;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e135); }
+      if (peg$silentFails === 0) { peg$fail(peg$e136); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9996,7 +10079,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f171(s1);
+        s0 = peg$f172(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10013,12 +10096,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c119) {
+    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c120) {
       s1 = input.substr(peg$currPos, 8);
       peg$currPos += 8;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e136); }
+      if (peg$silentFails === 0) { peg$fail(peg$e137); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10033,7 +10116,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f172(s1);
+        s0 = peg$f173(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10050,12 +10133,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c120) {
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c121) {
       s1 = input.substr(peg$currPos, 11);
       peg$currPos += 11;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e137); }
+      if (peg$silentFails === 0) { peg$fail(peg$e138); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10070,7 +10153,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f173(s1);
+        s0 = peg$f174(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10087,12 +10170,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c121) {
+    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c122) {
       s1 = input.substr(peg$currPos, 8);
       peg$currPos += 8;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e138); }
+      if (peg$silentFails === 0) { peg$fail(peg$e139); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10107,7 +10190,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f174(s1);
+        s0 = peg$f175(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10124,12 +10207,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c122) {
+    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c123) {
       s1 = input.substr(peg$currPos, 9);
       peg$currPos += 9;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e139); }
+      if (peg$silentFails === 0) { peg$fail(peg$e140); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10144,7 +10227,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f175(s1);
+        s0 = peg$f176(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10161,12 +10244,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c123) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c124) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e140); }
+      if (peg$silentFails === 0) { peg$fail(peg$e141); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10181,7 +10264,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f176(s1);
+        s0 = peg$f177(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10198,12 +10281,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c124) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c125) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e141); }
+      if (peg$silentFails === 0) { peg$fail(peg$e142); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10218,7 +10301,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f177(s1);
+        s0 = peg$f178(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10235,12 +10318,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c125) {
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c126) {
       s1 = input.substr(peg$currPos, 5);
       peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e142); }
+      if (peg$silentFails === 0) { peg$fail(peg$e143); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10255,7 +10338,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f178(s1);
+        s0 = peg$f179(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10342,11 +10425,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 91) {
-      s0 = peg$c126;
+      s0 = peg$c127;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e143); }
+      if (peg$silentFails === 0) { peg$fail(peg$e144); }
     }
 
     return s0;
@@ -10356,11 +10439,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 93) {
-      s0 = peg$c127;
+      s0 = peg$c128;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e144); }
+      if (peg$silentFails === 0) { peg$fail(peg$e145); }
     }
 
     return s0;
@@ -10370,11 +10453,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 123) {
-      s0 = peg$c128;
+      s0 = peg$c129;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e145); }
+      if (peg$silentFails === 0) { peg$fail(peg$e146); }
     }
 
     return s0;
@@ -10384,11 +10467,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 125) {
-      s0 = peg$c129;
+      s0 = peg$c130;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e146); }
+      if (peg$silentFails === 0) { peg$fail(peg$e147); }
     }
 
     return s0;
@@ -10449,7 +10532,7 @@ function peg$parse(input, options) {
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e147); }
+      if (peg$silentFails === 0) { peg$fail(peg$e148); }
     }
 
     return s0;
@@ -10470,12 +10553,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3, s4, s5;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 2) === peg$c130) {
-      s1 = peg$c130;
+    if (input.substr(peg$currPos, 2) === peg$c131) {
+      s1 = peg$c131;
       peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e148); }
+      if (peg$silentFails === 0) { peg$fail(peg$e149); }
     }
     if (s1 !== peg$FAILED) {
       s2 = [];
@@ -10544,24 +10627,24 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3, s4, s5;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 2) === peg$c131) {
-      s1 = peg$c131;
+    if (input.substr(peg$currPos, 2) === peg$c132) {
+      s1 = peg$c132;
       peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e149); }
+      if (peg$silentFails === 0) { peg$fail(peg$e150); }
     }
     if (s1 !== peg$FAILED) {
       s2 = [];
       s3 = peg$currPos;
       s4 = peg$currPos;
       peg$silentFails++;
-      if (input.substr(peg$currPos, 2) === peg$c132) {
-        s5 = peg$c132;
+      if (input.substr(peg$currPos, 2) === peg$c133) {
+        s5 = peg$c133;
         peg$currPos += 2;
       } else {
         s5 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e150); }
+        if (peg$silentFails === 0) { peg$fail(peg$e151); }
       }
       peg$silentFails--;
       if (s5 === peg$FAILED) {
@@ -10588,12 +10671,12 @@ function peg$parse(input, options) {
         s3 = peg$currPos;
         s4 = peg$currPos;
         peg$silentFails++;
-        if (input.substr(peg$currPos, 2) === peg$c132) {
-          s5 = peg$c132;
+        if (input.substr(peg$currPos, 2) === peg$c133) {
+          s5 = peg$c133;
           peg$currPos += 2;
         } else {
           s5 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$e150); }
+          if (peg$silentFails === 0) { peg$fail(peg$e151); }
         }
         peg$silentFails--;
         if (s5 === peg$FAILED) {
@@ -10616,12 +10699,12 @@ function peg$parse(input, options) {
           s3 = peg$FAILED;
         }
       }
-      if (input.substr(peg$currPos, 2) === peg$c132) {
-        s3 = peg$c132;
+      if (input.substr(peg$currPos, 2) === peg$c133) {
+        s3 = peg$c133;
         peg$currPos += 2;
       } else {
         s3 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e150); }
+        if (peg$silentFails === 0) { peg$fail(peg$e151); }
       }
       if (s3 !== peg$FAILED) {
         s1 = [s1, s2, s3];
@@ -10697,11 +10780,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 59) {
-      s0 = peg$c133;
+      s0 = peg$c134;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e151); }
+      if (peg$silentFails === 0) { peg$fail(peg$e152); }
     }
 
     return s0;
@@ -10725,7 +10808,7 @@ function peg$parse(input, options) {
 
     s0 = peg$currPos;
     peg$savedPos = peg$currPos;
-    s1 = peg$f179();
+    s1 = peg$f180();
     if (s1) {
       s1 = undefined;
     } else {
@@ -10739,7 +10822,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f180(s3);
+        s0 = peg$f181(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10765,7 +10848,7 @@ function peg$parse(input, options) {
         s5 = peg$parseproc_expr();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f181(s1, s5);
+          s0 = peg$f182(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -10792,7 +10875,7 @@ function peg$parse(input, options) {
       s3 = peg$parseproc_expr();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f182(s3);
+        s0 = peg$f183(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10867,7 +10950,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f183(s1, s2);
+      s0 = peg$f184(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -10921,7 +11004,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f184(s1, s2);
+      s0 = peg$f185(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -10946,7 +11029,7 @@ function peg$parse(input, options) {
           s7 = peg$parseon_clause();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f185(s1, s3, s5, s7);
+            s0 = peg$f186(s1, s3, s5, s7);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -10990,7 +11073,7 @@ function peg$parse(input, options) {
                   s5 = peg$parseRPAREN();
                   if (s5 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f186(s3);
+                    s0 = peg$f187(s3);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -11028,7 +11111,7 @@ function peg$parse(input, options) {
           s7 = peg$parseRPAREN();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f187(s1, s5);
+            s0 = peg$f188(s1, s5);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11054,12 +11137,12 @@ function peg$parse(input, options) {
 
     s0 = peg$currPos;
     s1 = peg$currPos;
-    if (input.substr(peg$currPos, 12).toLowerCase() === peg$c134) {
+    if (input.substr(peg$currPos, 12).toLowerCase() === peg$c135) {
       s2 = input.substr(peg$currPos, 12);
       peg$currPos += 12;
     } else {
       s2 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e152); }
+      if (peg$silentFails === 0) { peg$fail(peg$e153); }
     }
     if (s2 !== peg$FAILED) {
       s3 = peg$currPos;
@@ -11085,12 +11168,12 @@ function peg$parse(input, options) {
     }
     if (s1 === peg$FAILED) {
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 12).toLowerCase() === peg$c135) {
+      if (input.substr(peg$currPos, 12).toLowerCase() === peg$c136) {
         s2 = input.substr(peg$currPos, 12);
         peg$currPos += 12;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e153); }
+        if (peg$silentFails === 0) { peg$fail(peg$e154); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -11116,12 +11199,12 @@ function peg$parse(input, options) {
       }
       if (s1 === peg$FAILED) {
         s1 = peg$currPos;
-        if (input.substr(peg$currPos, 12).toLowerCase() === peg$c136) {
+        if (input.substr(peg$currPos, 12).toLowerCase() === peg$c137) {
           s2 = input.substr(peg$currPos, 12);
           peg$currPos += 12;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$e154); }
+          if (peg$silentFails === 0) { peg$fail(peg$e155); }
         }
         if (s2 !== peg$FAILED) {
           s3 = peg$currPos;
@@ -11147,12 +11230,12 @@ function peg$parse(input, options) {
         }
         if (s1 === peg$FAILED) {
           s1 = peg$currPos;
-          if (input.substr(peg$currPos, 17).toLowerCase() === peg$c137) {
+          if (input.substr(peg$currPos, 17).toLowerCase() === peg$c138) {
             s2 = input.substr(peg$currPos, 17);
             peg$currPos += 17;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$e155); }
+            if (peg$silentFails === 0) { peg$fail(peg$e156); }
           }
           if (s2 !== peg$FAILED) {
             s3 = peg$currPos;
@@ -11178,12 +11261,12 @@ function peg$parse(input, options) {
           }
           if (s1 === peg$FAILED) {
             s1 = peg$currPos;
-            if (input.substr(peg$currPos, 9).toLowerCase() === peg$c138) {
+            if (input.substr(peg$currPos, 9).toLowerCase() === peg$c139) {
               s2 = input.substr(peg$currPos, 9);
               peg$currPos += 9;
             } else {
               s2 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$e156); }
+              if (peg$silentFails === 0) { peg$fail(peg$e157); }
             }
             if (s2 !== peg$FAILED) {
               s3 = peg$currPos;
@@ -11209,12 +11292,12 @@ function peg$parse(input, options) {
             }
             if (s1 === peg$FAILED) {
               s1 = peg$currPos;
-              if (input.substr(peg$currPos, 14).toLowerCase() === peg$c139) {
+              if (input.substr(peg$currPos, 14).toLowerCase() === peg$c140) {
                 s2 = input.substr(peg$currPos, 14);
                 peg$currPos += 14;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$e157); }
+                if (peg$silentFails === 0) { peg$fail(peg$e158); }
               }
               if (s2 !== peg$FAILED) {
                 s3 = peg$currPos;
@@ -11240,12 +11323,12 @@ function peg$parse(input, options) {
               }
               if (s1 === peg$FAILED) {
                 s1 = peg$currPos;
-                if (input.substr(peg$currPos, 12).toLowerCase() === peg$c140) {
+                if (input.substr(peg$currPos, 12).toLowerCase() === peg$c141) {
                   s2 = input.substr(peg$currPos, 12);
                   peg$currPos += 12;
                 } else {
                   s2 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$e158); }
+                  if (peg$silentFails === 0) { peg$fail(peg$e159); }
                 }
                 if (s2 !== peg$FAILED) {
                   s3 = peg$currPos;
@@ -11271,12 +11354,12 @@ function peg$parse(input, options) {
                 }
                 if (s1 === peg$FAILED) {
                   s1 = peg$currPos;
-                  if (input.substr(peg$currPos, 11).toLowerCase() === peg$c141) {
+                  if (input.substr(peg$currPos, 11).toLowerCase() === peg$c142) {
                     s2 = input.substr(peg$currPos, 11);
                     peg$currPos += 11;
                   } else {
                     s2 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$e159); }
+                    if (peg$silentFails === 0) { peg$fail(peg$e160); }
                   }
                   if (s2 !== peg$FAILED) {
                     s3 = peg$currPos;
@@ -11302,12 +11385,12 @@ function peg$parse(input, options) {
                   }
                   if (s1 === peg$FAILED) {
                     s1 = peg$currPos;
-                    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c142) {
+                    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c143) {
                       s2 = input.substr(peg$currPos, 4);
                       peg$currPos += 4;
                     } else {
                       s2 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$e160); }
+                      if (peg$silentFails === 0) { peg$fail(peg$e161); }
                     }
                     if (s2 !== peg$FAILED) {
                       s3 = peg$currPos;
@@ -11341,7 +11424,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f188(s1);
+      s1 = peg$f189(s1);
     }
     s0 = s1;
 
@@ -11393,7 +11476,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f189(s1, s2);
+      s0 = peg$f190(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -11415,7 +11498,7 @@ function peg$parse(input, options) {
         s5 = peg$parseRBRAKE();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f190(s3);
+          s0 = peg$f191(s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11453,7 +11536,7 @@ function peg$parse(input, options) {
       if (s2 !== peg$FAILED) {
         s3 = peg$parsemem_chain();
         peg$savedPos = s0;
-        s0 = peg$f191(s2, s3);
+        s0 = peg$f192(s2, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -11480,7 +11563,7 @@ function peg$parse(input, options) {
           s5 = peg$parseRBRACE();
           if (s5 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f192(s3, s4);
+            s0 = peg$f193(s3, s4);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11552,7 +11635,7 @@ function peg$parse(input, options) {
       }
     }
     peg$savedPos = s0;
-    s1 = peg$f193(s1);
+    s1 = peg$f194(s1);
     s0 = s1;
 
     return s0;
@@ -11562,11 +11645,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 36) {
-      s0 = peg$c143;
+      s0 = peg$c144;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e161); }
+      if (peg$silentFails === 0) { peg$fail(peg$e162); }
     }
 
     return s0;
@@ -11575,12 +11658,12 @@ function peg$parse(input, options) {
   function peg$parseKW_RETURN() {
     var s0;
 
-    if (input.substr(peg$currPos, 6).toLowerCase() === peg$c144) {
+    if (input.substr(peg$currPos, 6).toLowerCase() === peg$c145) {
       s0 = input.substr(peg$currPos, 6);
       peg$currPos += 6;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e162); }
+      if (peg$silentFails === 0) { peg$fail(peg$e163); }
     }
 
     return s0;
@@ -11589,12 +11672,12 @@ function peg$parse(input, options) {
   function peg$parseKW_ASSIGN() {
     var s0;
 
-    if (input.substr(peg$currPos, 2) === peg$c145) {
-      s0 = peg$c145;
+    if (input.substr(peg$currPos, 2) === peg$c146) {
+      s0 = peg$c146;
       peg$currPos += 2;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e163); }
+      if (peg$silentFails === 0) { peg$fail(peg$e164); }
     }
 
     return s0;
@@ -11623,7 +11706,7 @@ function peg$parse(input, options) {
             s9 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f194(s1, s3, s7, s9);
+          s0 = peg$f195(s1, s3, s7, s9);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11653,7 +11736,7 @@ function peg$parse(input, options) {
         s5 = peg$parsetable_name();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f195(s1, s5);
+          s0 = peg$f196(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11671,7 +11754,7 @@ function peg$parse(input, options) {
       s1 = peg$parsetable_name();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f196(s1);
+        s1 = peg$f197(s1);
       }
       s0 = s1;
     }
@@ -11693,7 +11776,7 @@ function peg$parse(input, options) {
         if (s5 !== peg$FAILED) {
           s6 = peg$parse__();
           peg$savedPos = s0;
-          s0 = peg$f197(s1, s3, s5);
+          s0 = peg$f198(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11715,7 +11798,7 @@ function peg$parse(input, options) {
         if (s3 !== peg$FAILED) {
           s4 = peg$parse__();
           peg$savedPos = s0;
-          s0 = peg$f198(s1, s3);
+          s0 = peg$f199(s1, s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11736,7 +11819,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_TABLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f199(s1);
+      s1 = peg$f200(s1);
     }
     s0 = s1;
 
@@ -11759,7 +11842,7 @@ function peg$parse(input, options) {
           s7 = peg$parseselect_stmt();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f200(s1, s3, s5, s7);
+            s0 = peg$f201(s1, s3, s5, s7);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11796,7 +11879,7 @@ function peg$parse(input, options) {
                 s11 = peg$parseRPAREN();
                 if (s11 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f201(s1, s3, s5, s9);
+                  s0 = peg$f202(s1, s3, s5, s9);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -11838,7 +11921,7 @@ function peg$parse(input, options) {
                 s9 = peg$parseRPAREN();
                 if (s9 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f202(s1, s3, s7);
+                  s0 = peg$f203(s1, s3, s7);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -11872,7 +11955,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_CREATE_TABLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f203(s1);
+      s1 = peg$f204(s1);
     }
     s0 = s1;
 
@@ -11886,7 +11969,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_IF_NOT_EXISTS();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f204(s1);
+      s1 = peg$f205(s1);
     }
     s0 = s1;
 
@@ -11952,7 +12035,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f205(s1, s2);
+      s0 = peg$f206(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -11974,7 +12057,7 @@ function peg$parse(input, options) {
         s5 = peg$parsefield_constraint_list();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f206(s1, s3, s5);
+          s0 = peg$f207(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11995,7 +12078,7 @@ function peg$parse(input, options) {
         s3 = peg$parsefield_data_type();
         if (s3 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f207(s1, s3);
+          s0 = peg$f208(s1, s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12121,7 +12204,7 @@ function peg$parse(input, options) {
                         s21 = null;
                       }
                       peg$savedPos = s0;
-                      s0 = peg$f208(s1, s5, s6, s10, s12, s16, s17, s21);
+                      s0 = peg$f209(s1, s5, s6, s10, s12, s16, s17, s21);
                     } else {
                       peg$currPos = s0;
                       s0 = peg$FAILED;
@@ -12190,7 +12273,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f209(s1, s3, s5);
+          s0 = peg$f210(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12261,7 +12344,7 @@ function peg$parse(input, options) {
           s8 = peg$parseRPAREN();
           if (s8 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f210(s1, s5, s6);
+            s0 = peg$f211(s1, s5, s6);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -12336,7 +12419,7 @@ function peg$parse(input, options) {
           s8 = peg$parseRPAREN();
           if (s8 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f211(s1, s5, s6);
+            s0 = peg$f212(s1, s5, s6);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -12358,7 +12441,7 @@ function peg$parse(input, options) {
       s1 = peg$parseident();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f212(s1);
+        s1 = peg$f213(s1);
       }
       s0 = s1;
     }
@@ -12397,7 +12480,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f213(s1, s2);
+      s0 = peg$f214(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -12436,7 +12519,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_not_null();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f214(s1);
+      s1 = peg$f215(s1);
     }
     s0 = s1;
 
@@ -12450,7 +12533,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NOT_NULL();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f215(s1);
+      s1 = peg$f216(s1);
     }
     s0 = s1;
 
@@ -12464,7 +12547,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_primary_key();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f216(s1);
+      s1 = peg$f217(s1);
     }
     s0 = s1;
 
@@ -12478,7 +12561,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_PRIMARY_KEY();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f217(s1);
+      s1 = peg$f218(s1);
     }
     s0 = s1;
 
@@ -12492,7 +12575,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_unique();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f218(s1);
+      s1 = peg$f219(s1);
     }
     s0 = s1;
 
@@ -12506,7 +12589,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_UNIQUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f219(s1);
+      s1 = peg$f220(s1);
     }
     s0 = s1;
 
@@ -12520,7 +12603,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_auto_increment();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f220(s1);
+      s1 = peg$f221(s1);
     }
     s0 = s1;
 
@@ -12534,7 +12617,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_AUTO_INCREMENT();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f221(s1);
+      s1 = peg$f222(s1);
     }
     s0 = s1;
 
@@ -12561,7 +12644,7 @@ function peg$parse(input, options) {
           s7 = null;
         }
         peg$savedPos = s0;
-        s0 = peg$f222(s1, s3, s5, s7);
+        s0 = peg$f223(s1, s3, s5, s7);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12581,7 +12664,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_always();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f223(s1);
+      s1 = peg$f224(s1);
     }
     s0 = s1;
     if (s0 === peg$FAILED) {
@@ -12589,7 +12672,7 @@ function peg$parse(input, options) {
       s1 = peg$parsekeyword_by_default();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f224(s1);
+        s1 = peg$f225(s1);
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -12597,7 +12680,7 @@ function peg$parse(input, options) {
         s1 = peg$parsekeyword_by_default_on_null();
         if (s1 !== peg$FAILED) {
           peg$savedPos = s0;
-          s1 = peg$f225(s1);
+          s1 = peg$f226(s1);
         }
         s0 = s1;
       }
@@ -12622,7 +12705,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f226(s1, s3);
+        s0 = peg$f227(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12642,7 +12725,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_ALWAYS();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f227(s1);
+      s1 = peg$f228(s1);
     }
     s0 = s1;
 
@@ -12656,7 +12739,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_BY_DEFAULT();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f228(s1);
+      s1 = peg$f229(s1);
     }
     s0 = s1;
 
@@ -12670,7 +12753,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_BY_DEFAULT_ON_NULL();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f229(s1);
+      s1 = peg$f230(s1);
     }
     s0 = s1;
 
@@ -12687,7 +12770,7 @@ function peg$parse(input, options) {
       s3 = peg$parseident();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f230(s3);
+        s0 = peg$f231(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12731,7 +12814,7 @@ function peg$parse(input, options) {
       }
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f231(s1);
+        s1 = peg$f232(s1);
       }
       s0 = s1;
     }
@@ -12770,7 +12853,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f232(s1, s2);
+      s0 = peg$f233(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -12830,7 +12913,7 @@ function peg$parse(input, options) {
         s5 = peg$parseint();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f233(s5);
+          s0 = peg$f234(s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12860,7 +12943,7 @@ function peg$parse(input, options) {
         s5 = peg$parseint();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f234(s5);
+          s0 = peg$f235(s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12887,7 +12970,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f235(s3);
+        s0 = peg$f236(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12910,7 +12993,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f236(s3);
+        s0 = peg$f237(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12930,7 +13013,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_MAXVALUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f237();
+      s1 = peg$f238();
     }
     s0 = s1;
 
@@ -12944,7 +13027,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_MINVALUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f238();
+      s1 = peg$f239();
     }
     s0 = s1;
 
@@ -12961,7 +13044,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f239(s3);
+        s0 = peg$f240(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12981,7 +13064,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_CYCLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f240();
+      s1 = peg$f241();
     }
     s0 = s1;
 
@@ -12995,7 +13078,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_CYCLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f241();
+      s1 = peg$f242();
     }
     s0 = s1;
 
@@ -13012,7 +13095,7 @@ function peg$parse(input, options) {
       s3 = peg$parsecolumn_ref();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f242(s3);
+        s0 = peg$f243(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13032,7 +13115,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_OWNED_BY_NONE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f243();
+      s1 = peg$f244();
     }
     s0 = s1;
 
@@ -13058,7 +13141,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f244(s1, s3, s5);
+          s0 = peg$f245(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13097,7 +13180,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f245(s1);
+      s1 = peg$f246(s1);
     }
     s0 = s1;
 
@@ -13114,7 +13197,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f246(s1, s3);
+        s0 = peg$f247(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13134,7 +13217,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_ADD();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f247(s1);
+      s1 = peg$f248(s1);
     }
     s0 = s1;
 
@@ -13151,7 +13234,7 @@ function peg$parse(input, options) {
       s3 = peg$parsecolumn_node();
       if (s3 === peg$FAILED) {
         peg$savedPos = peg$currPos;
-        s3 = peg$f248(s1);
+        s3 = peg$f249(s1);
         if (s3) {
           s3 = peg$FAILED;
         } else {
@@ -13160,7 +13243,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f249(s1, s3);
+        s0 = peg$f250(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13180,7 +13263,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_COLUMN();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f250(s1);
+      s1 = peg$f251(s1);
     }
     s0 = s1;
 
@@ -13197,7 +13280,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield();
       if (s3 === peg$FAILED) {
         peg$savedPos = peg$currPos;
-        s3 = peg$f251(s1);
+        s3 = peg$f252(s1);
         if (s3) {
           s3 = peg$FAILED;
         } else {
@@ -13206,7 +13289,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f252(s1, s3);
+        s0 = peg$f253(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13241,7 +13324,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f253(s1);
+      s1 = peg$f254(s1);
     }
     s0 = s1;
     if (s0 === peg$FAILED) {
@@ -13249,7 +13332,7 @@ function peg$parse(input, options) {
       s1 = peg$parseKW_MODIFY();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f254(s1);
+        s1 = peg$f255(s1);
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -13272,7 +13355,7 @@ function peg$parse(input, options) {
         }
         if (s1 !== peg$FAILED) {
           peg$savedPos = s0;
-          s1 = peg$f255(s1);
+          s1 = peg$f256(s1);
         }
         s0 = s1;
       }
@@ -13314,7 +13397,7 @@ function peg$parse(input, options) {
                   s17 = peg$parseRPAREN();
                   if (s17 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f256(s1, s3, s5, s7, s9, s11, s15);
+                    s0 = peg$f257(s1, s3, s5, s7, s9, s11, s15);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13393,7 +13476,7 @@ function peg$parse(input, options) {
                 s13 = peg$parseRPAREN();
                 if (s13 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f257(s1, s3, s5, s7, s11);
+                  s0 = peg$f258(s1, s3, s5, s7, s11);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -13436,7 +13519,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield_data_type();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f258(s1, s3);
+        s0 = peg$f259(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13494,7 +13577,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f259(s1, s2);
+      s0 = peg$f260(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13531,7 +13614,7 @@ function peg$parse(input, options) {
                   s15 = peg$parseRPAREN();
                   if (s15 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f260(s1, s3, s5, s7, s9, s13);
+                    s0 = peg$f261(s1, s3, s5, s7, s9, s13);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13613,7 +13696,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f261(s1, s2);
+      s0 = peg$f262(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13650,7 +13733,7 @@ function peg$parse(input, options) {
                   s15 = peg$parseRPAREN();
                   if (s15 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f262(s1, s3, s5, s7, s9, s13);
+                    s0 = peg$f263(s1, s3, s5, s7, s9, s13);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13709,7 +13792,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f263(s1, s5);
+          s0 = peg$f264(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13727,7 +13810,7 @@ function peg$parse(input, options) {
       s1 = peg$parseident();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f264(s1);
+        s1 = peg$f265(s1);
       }
       s0 = s1;
     }
@@ -13780,7 +13863,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f265(s1, s2);
+      s0 = peg$f266(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13829,7 +13912,7 @@ function peg$parse(input, options) {
             s7 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f266(s1, s3, s5, s7);
+          s0 = peg$f267(s1, s3, s5, s7);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13872,7 +13955,7 @@ function peg$parse(input, options) {
             s9 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f267(s1, s3, s5, s7, s9);
+          s0 = peg$f268(s1, s3, s5, s7, s9);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13912,7 +13995,7 @@ function peg$parse(input, options) {
           s7 = null;
         }
         peg$savedPos = s0;
-        s0 = peg$f268(s1, s3, s5, s7);
+        s0 = peg$f269(s1, s3, s5, s7);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13970,7 +14053,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f269(s1, s2);
+      s0 = peg$f270(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13986,7 +14069,7 @@ function peg$parse(input, options) {
     s1 = peg$parseident();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f270(s1);
+      s1 = peg$f271(s1);
     }
     s0 = s1;
 
@@ -14000,13 +14083,296 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_VIEW();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f271(s1);
+      s1 = peg$f272(s1);
     }
     s0 = s1;
 
     return s0;
   }
 
+  function peg$parseset_stmt() {
+    var s0, s1, s2, s3;
+
+    s0 = peg$currPos;
+    s1 = peg$parseKW_SET();
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      s3 = peg$parsesession_authorization_assignment();
+      if (s3 === peg$FAILED) {
+        s3 = peg$parsesearch_path_assignment();
+        if (s3 === peg$FAILED) {
+          s3 = peg$parsevariable_assignment_list();
+        }
+      }
+      if (s3 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s0 = peg$f273(s3);
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsesession_authorization_assignment() {
+    var s0, s1, s2, s3, s4, s5, s6, s7;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c147) {
+      s1 = input.substr(peg$currPos, 7);
+      peg$currPos += 7;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e165); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      if (input.substr(peg$currPos, 13).toLowerCase() === peg$c148) {
+        s3 = input.substr(peg$currPos, 13);
+        peg$currPos += 13;
+      } else {
+        s3 = peg$FAILED;
+        if (peg$silentFails === 0) { peg$fail(peg$e166); }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseKW_TO();
+        if (s5 === peg$FAILED) {
+          if (input.charCodeAt(peg$currPos) === 61) {
+            s5 = peg$c4;
+            peg$currPos++;
+          } else {
+            s5 = peg$FAILED;
+            if (peg$silentFails === 0) { peg$fail(peg$e6); }
+          }
+        }
+        if (s5 !== peg$FAILED) {
+          s6 = peg$parse__();
+          s7 = peg$parseliteral_string();
+          if (s7 !== peg$FAILED) {
+            peg$savedPos = s0;
+            s0 = peg$f274(s7);
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsesearch_path_assignment() {
+    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c149) {
+      s1 = input.substr(peg$currPos, 11);
+      peg$currPos += 11;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e167); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      s3 = peg$parseKW_TO();
+      if (s3 === peg$FAILED) {
+        if (input.charCodeAt(peg$currPos) === 61) {
+          s3 = peg$c4;
+          peg$currPos++;
+        } else {
+          s3 = peg$FAILED;
+          if (peg$silentFails === 0) { peg$fail(peg$e6); }
+        }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseliteral_string();
+        if (s5 !== peg$FAILED) {
+          s6 = [];
+          s7 = peg$currPos;
+          s8 = peg$parse__();
+          s9 = peg$parseCOMMA();
+          if (s9 !== peg$FAILED) {
+            s10 = peg$parse__();
+            s11 = peg$parseliteral_string();
+            if (s11 !== peg$FAILED) {
+              s8 = [s8, s9, s10, s11];
+              s7 = s8;
+            } else {
+              peg$currPos = s7;
+              s7 = peg$FAILED;
+            }
+          } else {
+            peg$currPos = s7;
+            s7 = peg$FAILED;
+          }
+          while (s7 !== peg$FAILED) {
+            s6.push(s7);
+            s7 = peg$currPos;
+            s8 = peg$parse__();
+            s9 = peg$parseCOMMA();
+            if (s9 !== peg$FAILED) {
+              s10 = peg$parse__();
+              s11 = peg$parseliteral_string();
+              if (s11 !== peg$FAILED) {
+                s8 = [s8, s9, s10, s11];
+                s7 = s8;
+              } else {
+                peg$currPos = s7;
+                s7 = peg$FAILED;
+              }
+            } else {
+              peg$currPos = s7;
+              s7 = peg$FAILED;
+            }
+          }
+          peg$savedPos = s0;
+          s0 = peg$f275(s1, s5, s6);
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsevariable_assignment_list() {
+    var s0, s1, s2, s3, s4, s5, s6, s7;
+
+    s0 = peg$currPos;
+    s1 = peg$parsevariable_assignment();
+    if (s1 !== peg$FAILED) {
+      s2 = [];
+      s3 = peg$currPos;
+      s4 = peg$parse__();
+      s5 = peg$parseCOMMA();
+      if (s5 !== peg$FAILED) {
+        s6 = peg$parse__();
+        s7 = peg$parsevariable_assignment();
+        if (s7 !== peg$FAILED) {
+          s4 = [s4, s5, s6, s7];
+          s3 = s4;
+        } else {
+          peg$currPos = s3;
+          s3 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s3;
+        s3 = peg$FAILED;
+      }
+      while (s3 !== peg$FAILED) {
+        s2.push(s3);
+        s3 = peg$currPos;
+        s4 = peg$parse__();
+        s5 = peg$parseCOMMA();
+        if (s5 !== peg$FAILED) {
+          s6 = peg$parse__();
+          s7 = peg$parsevariable_assignment();
+          if (s7 !== peg$FAILED) {
+            s4 = [s4, s5, s6, s7];
+            s3 = s4;
+          } else {
+            peg$currPos = s3;
+            s3 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s3;
+          s3 = peg$FAILED;
+        }
+      }
+      peg$savedPos = s0;
+      s0 = peg$f276(s1, s2);
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsevariable_assignment() {
+    var s0, s1, s2, s3, s4, s5;
+
+    s0 = peg$currPos;
+    s1 = peg$currPos;
+    if (input.charCodeAt(peg$currPos) === 64) {
+      s2 = peg$c150;
+      peg$currPos++;
+    } else {
+      s2 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e168); }
+    }
+    if (s2 !== peg$FAILED) {
+      s3 = peg$parseident_name();
+      if (s3 !== peg$FAILED) {
+        s2 = [s2, s3];
+        s1 = s2;
+      } else {
+        peg$currPos = s1;
+        s1 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s1;
+      s1 = peg$FAILED;
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      if (input.charCodeAt(peg$currPos) === 61) {
+        s3 = peg$c4;
+        peg$currPos++;
+      } else {
+        s3 = peg$FAILED;
+        if (peg$silentFails === 0) { peg$fail(peg$e6); }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseliteral();
+        if (s5 === peg$FAILED) {
+          s5 = peg$parseor_expr();
+        }
+        if (s5 !== peg$FAILED) {
+          peg$savedPos = s0;
+          s0 = peg$f277(s1, s5);
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
 
   var reservedMap = module.exports.reservedMap || {};
 
diff --git a/packages/sql-parser/base/parser.js b/packages/sql-parser/base/parser.js
index 469a31b7..3039a5b3 100644
--- a/packages/sql-parser/base/parser.js
+++ b/packages/sql-parser/base/parser.js
@@ -284,44 +284,49 @@ function peg$parse(input, options) {
   var peg$c105 = "not";
   var peg$c106 = "and";
   var peg$c107 = "or";
-  var peg$c108 = "count";
-  var peg$c109 = "max";
-  var peg$c110 = "min";
-  var peg$c111 = "sum";
-  var peg$c112 = "avg";
-  var peg$c113 = "cast";
-  var peg$c114 = "recursive";
-  var peg$c115 = "foreign key";
-  var peg$c116 = "references";
-  var peg$c117 = "index";
-  var peg$c118 = "cascade";
-  var peg$c119 = "set null";
-  var peg$c120 = "set default";
-  var peg$c121 = "restrict";
-  var peg$c122 = "no action";
-  var peg$c123 = "type";
-  var peg$c124 = "enum";
-  var peg$c125 = "range";
-  var peg$c126 = "[";
-  var peg$c127 = "]";
-  var peg$c128 = "{";
-  var peg$c129 = "}";
-  var peg$c130 = "--";
-  var peg$c131 = "/*";
-  var peg$c132 = "*/";
-  var peg$c133 = ";";
-  var peg$c134 = "current_user";
-  var peg$c135 = "current_date";
-  var peg$c136 = "current_time";
-  var peg$c137 = "current_timestamp";
-  var peg$c138 = "localtime";
-  var peg$c139 = "localtimestamp";
-  var peg$c140 = "session_user";
-  var peg$c141 = "system_user";
-  var peg$c142 = "user";
-  var peg$c143 = "$";
-  var peg$c144 = "return";
-  var peg$c145 = ":=";
+  var peg$c108 = "to";
+  var peg$c109 = "count";
+  var peg$c110 = "max";
+  var peg$c111 = "min";
+  var peg$c112 = "sum";
+  var peg$c113 = "avg";
+  var peg$c114 = "cast";
+  var peg$c115 = "recursive";
+  var peg$c116 = "foreign key";
+  var peg$c117 = "references";
+  var peg$c118 = "index";
+  var peg$c119 = "cascade";
+  var peg$c120 = "set null";
+  var peg$c121 = "set default";
+  var peg$c122 = "restrict";
+  var peg$c123 = "no action";
+  var peg$c124 = "type";
+  var peg$c125 = "enum";
+  var peg$c126 = "range";
+  var peg$c127 = "[";
+  var peg$c128 = "]";
+  var peg$c129 = "{";
+  var peg$c130 = "}";
+  var peg$c131 = "--";
+  var peg$c132 = "/*";
+  var peg$c133 = "*/";
+  var peg$c134 = ";";
+  var peg$c135 = "current_user";
+  var peg$c136 = "current_date";
+  var peg$c137 = "current_time";
+  var peg$c138 = "current_timestamp";
+  var peg$c139 = "localtime";
+  var peg$c140 = "localtimestamp";
+  var peg$c141 = "session_user";
+  var peg$c142 = "system_user";
+  var peg$c143 = "user";
+  var peg$c144 = "$";
+  var peg$c145 = "return";
+  var peg$c146 = ":=";
+  var peg$c147 = "session";
+  var peg$c148 = "authorization";
+  var peg$c149 = "search_path";
+  var peg$c150 = "@";
 
   var peg$r0 = /^[^)]/;
   var peg$r1 = /^[^`]/;
@@ -466,45 +471,50 @@ function peg$parse(input, options) {
   var peg$e122 = peg$literalExpectation("NOT", true);
   var peg$e123 = peg$literalExpectation("AND", true);
   var peg$e124 = peg$literalExpectation("OR", true);
-  var peg$e125 = peg$literalExpectation("COUNT", true);
-  var peg$e126 = peg$literalExpectation("MAX", true);
-  var peg$e127 = peg$literalExpectation("MIN", true);
-  var peg$e128 = peg$literalExpectation("SUM", true);
-  var peg$e129 = peg$literalExpectation("AVG", true);
-  var peg$e130 = peg$literalExpectation("CAST", true);
-  var peg$e131 = peg$literalExpectation("RECURSIVE", true);
-  var peg$e132 = peg$literalExpectation("FOREIGN KEY", true);
-  var peg$e133 = peg$literalExpectation("REFERENCES", true);
-  var peg$e134 = peg$literalExpectation("INDEX", true);
-  var peg$e135 = peg$literalExpectation("CASCADE", true);
-  var peg$e136 = peg$literalExpectation("SET NULL", true);
-  var peg$e137 = peg$literalExpectation("SET DEFAULT", true);
-  var peg$e138 = peg$literalExpectation("RESTRICT", true);
-  var peg$e139 = peg$literalExpectation("NO ACTION", true);
-  var peg$e140 = peg$literalExpectation("TYPE", true);
-  var peg$e141 = peg$literalExpectation("ENUM", true);
-  var peg$e142 = peg$literalExpectation("RANGE", true);
-  var peg$e143 = peg$literalExpectation("[", false);
-  var peg$e144 = peg$literalExpectation("]", false);
-  var peg$e145 = peg$literalExpectation("{", false);
-  var peg$e146 = peg$literalExpectation("}", false);
-  var peg$e147 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false);
-  var peg$e148 = peg$literalExpectation("--", false);
-  var peg$e149 = peg$literalExpectation("/*", false);
-  var peg$e150 = peg$literalExpectation("*/", false);
-  var peg$e151 = peg$literalExpectation(";", false);
-  var peg$e152 = peg$literalExpectation("CURRENT_USER", true);
-  var peg$e153 = peg$literalExpectation("CURRENT_DATE", true);
-  var peg$e154 = peg$literalExpectation("CURRENT_TIME", true);
-  var peg$e155 = peg$literalExpectation("CURRENT_TIMESTAMP", true);
-  var peg$e156 = peg$literalExpectation("LOCALTIME", true);
-  var peg$e157 = peg$literalExpectation("LOCALTIMESTAMP", true);
-  var peg$e158 = peg$literalExpectation("SESSION_USER", true);
-  var peg$e159 = peg$literalExpectation("SYSTEM_USER", true);
-  var peg$e160 = peg$literalExpectation("USER", true);
-  var peg$e161 = peg$literalExpectation("$", false);
-  var peg$e162 = peg$literalExpectation("return", true);
-  var peg$e163 = peg$literalExpectation(":=", false);
+  var peg$e125 = peg$literalExpectation("TO", true);
+  var peg$e126 = peg$literalExpectation("COUNT", true);
+  var peg$e127 = peg$literalExpectation("MAX", true);
+  var peg$e128 = peg$literalExpectation("MIN", true);
+  var peg$e129 = peg$literalExpectation("SUM", true);
+  var peg$e130 = peg$literalExpectation("AVG", true);
+  var peg$e131 = peg$literalExpectation("CAST", true);
+  var peg$e132 = peg$literalExpectation("RECURSIVE", true);
+  var peg$e133 = peg$literalExpectation("FOREIGN KEY", true);
+  var peg$e134 = peg$literalExpectation("REFERENCES", true);
+  var peg$e135 = peg$literalExpectation("INDEX", true);
+  var peg$e136 = peg$literalExpectation("CASCADE", true);
+  var peg$e137 = peg$literalExpectation("SET NULL", true);
+  var peg$e138 = peg$literalExpectation("SET DEFAULT", true);
+  var peg$e139 = peg$literalExpectation("RESTRICT", true);
+  var peg$e140 = peg$literalExpectation("NO ACTION", true);
+  var peg$e141 = peg$literalExpectation("TYPE", true);
+  var peg$e142 = peg$literalExpectation("ENUM", true);
+  var peg$e143 = peg$literalExpectation("RANGE", true);
+  var peg$e144 = peg$literalExpectation("[", false);
+  var peg$e145 = peg$literalExpectation("]", false);
+  var peg$e146 = peg$literalExpectation("{", false);
+  var peg$e147 = peg$literalExpectation("}", false);
+  var peg$e148 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false);
+  var peg$e149 = peg$literalExpectation("--", false);
+  var peg$e150 = peg$literalExpectation("/*", false);
+  var peg$e151 = peg$literalExpectation("*/", false);
+  var peg$e152 = peg$literalExpectation(";", false);
+  var peg$e153 = peg$literalExpectation("CURRENT_USER", true);
+  var peg$e154 = peg$literalExpectation("CURRENT_DATE", true);
+  var peg$e155 = peg$literalExpectation("CURRENT_TIME", true);
+  var peg$e156 = peg$literalExpectation("CURRENT_TIMESTAMP", true);
+  var peg$e157 = peg$literalExpectation("LOCALTIME", true);
+  var peg$e158 = peg$literalExpectation("LOCALTIMESTAMP", true);
+  var peg$e159 = peg$literalExpectation("SESSION_USER", true);
+  var peg$e160 = peg$literalExpectation("SYSTEM_USER", true);
+  var peg$e161 = peg$literalExpectation("USER", true);
+  var peg$e162 = peg$literalExpectation("$", false);
+  var peg$e163 = peg$literalExpectation("return", true);
+  var peg$e164 = peg$literalExpectation(":=", false);
+  var peg$e165 = peg$literalExpectation("session", true);
+  var peg$e166 = peg$literalExpectation("authorization", true);
+  var peg$e167 = peg$literalExpectation("search_path", true);
+  var peg$e168 = peg$literalExpectation("@", false);
 
   var peg$f0 = function() { return true; };
   var peg$f1 = function(ast, tail) {
@@ -1175,12 +1185,12 @@ function peg$parse(input, options) {
   var peg$f158 = function() { return 'NOT';      };
   var peg$f159 = function() { return 'AND';      };
   var peg$f160 = function() { return 'OR';       };
-  var peg$f161 = function() { return 'COUNT';    };
-  var peg$f162 = function() { return 'MAX';      };
-  var peg$f163 = function() { return 'MIN';      };
-  var peg$f164 = function() { return 'SUM';      };
-  var peg$f165 = function() { return 'AVG';      };
-  var peg$f166 = function(val) { return makeKeywordNode(val, location()) };
+  var peg$f161 = function() { return 'TO';      };
+  var peg$f162 = function() { return 'COUNT';    };
+  var peg$f163 = function() { return 'MAX';      };
+  var peg$f164 = function() { return 'MIN';      };
+  var peg$f165 = function() { return 'SUM';      };
+  var peg$f166 = function() { return 'AVG';      };
   var peg$f167 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f168 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f169 = function(val) { return makeKeywordNode(val, location()) };
@@ -1193,32 +1203,33 @@ function peg$parse(input, options) {
   var peg$f176 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f177 = function(val) { return makeKeywordNode(val, location()) };
   var peg$f178 = function(val) { return makeKeywordNode(val, location()) };
-  var peg$f179 = function() { return true; };
-  var peg$f180 = function(s) {
+  var peg$f179 = function(val) { return makeKeywordNode(val, location()) };
+  var peg$f180 = function() { return true; };
+  var peg$f181 = function(s) {
       return {
         stmt : s,
       }
     };
-  var peg$f181 = function(va, e) {
+  var peg$f182 = function(va, e) {
     return {
       type : 'assign',
       left : va,
       right: e
     }
   };
-  var peg$f182 = function(e) {
+  var peg$f183 = function(e) {
   return {
     type : 'return',
     expr: e
   }
 };
-  var peg$f183 = function(head, tail) {
+  var peg$f184 = function(head, tail) {
       return createBinaryExprChain(head, tail);
     };
-  var peg$f184 = function(head, tail) {
+  var peg$f185 = function(head, tail) {
       return createBinaryExprChain(head, tail);
     };
-  var peg$f185 = function(lt, op, rt, expr) {
+  var peg$f186 = function(lt, op, rt, expr) {
       return {
         type    : 'join',
         ltable  : lt, 
@@ -1227,11 +1238,11 @@ function peg$parse(input, options) {
         on      : expr
       }
     };
-  var peg$f186 = function(e) { 
+  var peg$f187 = function(e) { 
       e.paren = true; 
       return e; 
     };
-  var peg$f187 = function(name, l) {
+  var peg$f188 = function(name, l) {
       //compatible with original func_call
       return {
         type : 'function',
@@ -1243,23 +1254,23 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f188 = function(value) {
+  var peg$f189 = function(value) {
       return {
         type : 'special_system_function',
         name : value,
         location: location(),
       }
     };
-  var peg$f189 = function(head, tail) {
+  var peg$f190 = function(head, tail) {
       return createList(head, tail);
     };
-  var peg$f190 = function(l) {
+  var peg$f191 = function(l) {
     return {
       type : 'array',
       value : l
     }
   };
-  var peg$f191 = function(name, m) {
+  var peg$f192 = function(name, m) {
     return {
       type : 'var',
       name : name,
@@ -1267,7 +1278,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f192 = function(name, m) {
+  var peg$f193 = function(name, m) {
     return {
       type : 'var_pg_promise',
       name : name,
@@ -1275,14 +1286,14 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f193 = function(l) {
+  var peg$f194 = function(l) {
     var s = [];
     for (var i = 0; i < l.length; i++) {
       s.push(l[i][1]); 
     }
     return s;
   };
-  var peg$f194 = function(with_clause, val, t, w) {
+  var peg$f195 = function(with_clause, val, t, w) {
       return {
         type    : 'delete',
         with    : with_clause,
@@ -1290,7 +1301,7 @@ function peg$parse(input, options) {
         where   : w
       }
     };
-  var peg$f195 = function(db, t) {
+  var peg$f196 = function(db, t) {
       return  {
         type: 'table',
         db    : db,
@@ -1298,7 +1309,7 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f196 = function(t) {
+  var peg$f197 = function(t) {
       return  {
         type: 'table',
         db    : '',
@@ -1306,7 +1317,7 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f197 = function(keyword, if_exists_keyword, table) {
+  var peg$f198 = function(keyword, if_exists_keyword, table) {
       return {
         type: 'drop_table',
         keyword: keyword,
@@ -1314,7 +1325,7 @@ function peg$parse(input, options) {
         table: table
       }
     };
-  var peg$f198 = function(keyword, table) {
+  var peg$f199 = function(keyword, table) {
       return {
         type: 'drop_table',
         keyword: keyword,
@@ -1322,14 +1333,14 @@ function peg$parse(input, options) {
         table: table
       }
     };
-  var peg$f199 = function(val) {
+  var peg$f200 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f200 = function(keyword, table, as, select) {
+  var peg$f201 = function(keyword, table, as, select) {
       return {
         type: 'create_table',
         keyword: keyword,
@@ -1339,7 +1350,7 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f201 = function(keyword, if_not_exists_keyword, table, fields) {
+  var peg$f202 = function(keyword, if_not_exists_keyword, table, fields) {
       return {
         type: 'create_table',
         keyword: keyword,
@@ -1349,7 +1360,7 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f202 = function(keyword, table, fields) {
+  var peg$f203 = function(keyword, table, fields) {
       return {
         type: 'create_table',
         if_not_exists: null,
@@ -1359,24 +1370,24 @@ function peg$parse(input, options) {
         location: location(),
       }
     };
-  var peg$f203 = function(val) {
+  var peg$f204 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f204 = function(val) {
+  var peg$f205 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f205 = function(head, tail) {
+  var peg$f206 = function(head, tail) {
   return createList(head, tail);
 };
-  var peg$f206 = function(name, type, constraints) {
+  var peg$f207 = function(name, type, constraints) {
     return {
       type: 'field',
       name: name,
@@ -1385,7 +1396,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f207 = function(name, type) {
+  var peg$f208 = function(name, type) {
     return {
       type: 'field',
       name: name,
@@ -1394,7 +1405,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f208 = function(k1, col_head, col_tail, k2, ref_table, ref_col_head, ref_col_tail, on) {
+  var peg$f209 = function(k1, col_head, col_tail, k2, ref_table, ref_col_head, ref_col_tail, on) {
     return {
       type: 'foreign_key',
       foreign_keyword: k1,
@@ -1406,7 +1417,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f209 = function(on, trigger, action) {
+  var peg$f210 = function(on, trigger, action) {
     return {
       type: 'foreign_key_on',
       on_keyword: on,
@@ -1415,7 +1426,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f210 = function(k, col_head, col_tail) {
+  var peg$f211 = function(k, col_head, col_tail) {
     return {
       type: 'primary_key',
       keyword: k,
@@ -1423,7 +1434,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f211 = function(name, args_head, args_tail) {
+  var peg$f212 = function(name, args_head, args_tail) {
     return {
       type: 'field_data_type',
       name: name,
@@ -1431,7 +1442,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f212 = function(name) {
+  var peg$f213 = function(name) {
     return {
       type: 'field_data_type',
       name: name,
@@ -1439,50 +1450,47 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f213 = function(head, tail) {
+  var peg$f214 = function(head, tail) {
     return createList(head, tail, 1);
   };
-  var peg$f214 = function(k) {
+  var peg$f215 = function(k) {
   return { type: 'constraint_not_null', keyword: k, location: location() }
 };
-  var peg$f215 = function(k) {
+  var peg$f216 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f216 = function(k) {
+  var peg$f217 = function(k) {
   return { type: 'constraint_primary_key', keyword: k, location: location() }
 };
-  var peg$f217 = function(k) {
+  var peg$f218 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f218 = function(k) {
+  var peg$f219 = function(k) {
   return { type: 'constraint_unique', keyword: k, location: location() }
 };
-  var peg$f219 = function(k) {
+  var peg$f220 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f220 = function(k) {
+  var peg$f221 = function(k) {
   return { type: 'constraint_auto_increment', keyword: k, location: location() }
 };
-  var peg$f221 = function(k) {
+  var peg$f222 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f222 = function(g, opt, data, seq) {
+  var peg$f223 = function(g, opt, data, seq) {
     return { type: 'constraint_generated', option: opt, data_type: data, sequence_options: seq }
 };
-  var peg$f223 = function(k) {
+  var peg$f224 = function(k) {
   return { type: 'constraint_generated_option', option: 'ALWAYS', keyword: k }
 };
-  var peg$f224 = function(k) {
+  var peg$f225 = function(k) {
   return { type: 'constraint_generated_option', option: 'BY_DEFAULT', keyword: k }
 };
-  var peg$f225 = function(k) {
+  var peg$f226 = function(k) {
   return { type: 'constraint_generated_option', option: 'BY_DEFAULT_ON_NULL', keyword: k }
 };
-  var peg$f226 = function(k, value) {
+  var peg$f227 = function(k, value) {
       return { type: 'constraint_default', keyword: k, value: value, location: location() }
-};
-  var peg$f227 = function(k) {
-  return { type: 'keyword', value: k && k[0], location: location() }
 };
   var peg$f228 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
@@ -1490,49 +1498,52 @@ function peg$parse(input, options) {
   var peg$f229 = function(k) {
   return { type: 'keyword', value: k && k[0], location: location() }
 };
-  var peg$f230 = function(val) {
+  var peg$f230 = function(k) {
+  return { type: 'keyword', value: k && k[0], location: location() }
+};
+  var peg$f231 = function(val) {
   return { type: 'sequence_option_data_type', value: val, location: location() }
 };
-  var peg$f231 = function(s) {
+  var peg$f232 = function(s) {
   return s[2]
 };
-  var peg$f232 = function(head, tail) {
+  var peg$f233 = function(head, tail) {
     return createList(head, tail, 1);
   };
-  var peg$f233 = function(val) {
-  return { type: 'sequence_option_increment', value: val, location: location() }
-};
   var peg$f234 = function(val) {
   return { type: 'sequence_option_increment', value: val, location: location() }
 };
   var peg$f235 = function(val) {
-  return { type: 'sequence_option_maxvalue', value: val, location: location() }
+  return { type: 'sequence_option_increment', value: val, location: location() }
 };
   var peg$f236 = function(val) {
   return { type: 'sequence_option_maxvalue', value: val, location: location() }
 };
-  var peg$f237 = function() {
-  return { type: 'sequence_option_no_maxvalue', location: location() }
+  var peg$f237 = function(val) {
+  return { type: 'sequence_option_maxvalue', value: val, location: location() }
 };
   var peg$f238 = function() {
+  return { type: 'sequence_option_no_maxvalue', location: location() }
+};
+  var peg$f239 = function() {
   return { type: 'sequence_option_no_minvalue', location: location() }
 };
-  var peg$f239 = function(val) {
+  var peg$f240 = function(val) {
   return { type: 'sequence_option_cache', value: val, location: location() }
 };
-  var peg$f240 = function() {
+  var peg$f241 = function() {
   return { type: 'sequence_option_cycle', location: location() }
 };
-  var peg$f241 = function() {
+  var peg$f242 = function() {
   return { type: 'sequence_option_no_cycle', location: location() }
 };
-  var peg$f242 = function(val) {
+  var peg$f243 = function(val) {
   return { type: 'sequence_option_owned_by', value: val, location: location() }
 };
-  var peg$f243 = function() {
+  var peg$f244 = function() {
   return { type: 'sequence_option_owned_by_none', location: location() }
 };
-  var peg$f244 = function(keyword, table, command) {
+  var peg$f245 = function(keyword, table, command) {
       return {
         type: 'alter_table',
         keyword: keyword,
@@ -1540,14 +1551,14 @@ function peg$parse(input, options) {
         command: command
       }
     };
-  var peg$f245 = function(val) {
+  var peg$f246 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f246 = function(keyword, field) {
+  var peg$f247 = function(keyword, field) {
       return {
         type: 'alter_table_add_column',
         keyword: keyword,
@@ -1555,15 +1566,15 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f247 = function(val) {
+  var peg$f248 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f248 = function(keyword) {error('EXPECTED COLUMN NAME')};
-  var peg$f249 = function(keyword, column) {
+  var peg$f249 = function(keyword) {error('EXPECTED COLUMN NAME')};
+  var peg$f250 = function(keyword, column) {
       return {
         type: 'alter_table_drop_column',
         keyword: keyword,
@@ -1571,15 +1582,15 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f250 = function(val) {
+  var peg$f251 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
-  var peg$f251 = function(keyword) {error('EXPECTED COLUMN NAME')};
-  var peg$f252 = function(keyword, field) {
+  var peg$f252 = function(keyword) {error('EXPECTED COLUMN NAME')};
+  var peg$f253 = function(keyword, field) {
       return {
         type: 'alter_table_modify_column',
         keyword: keyword,
@@ -1587,14 +1598,14 @@ function peg$parse(input, options) {
         location: location()
       }
     };
-  var peg$f253 = function(val) {
+  var peg$f254 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f254 = function(val) {
+  var peg$f255 = function(val) {
     const ary = val || []
     return {
       type: 'keyword',
@@ -1602,14 +1613,14 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f255 = function(val) {
+  var peg$f256 = function(val) {
     return {
       type: 'keyword',
       value: (val || []).map((v) => (v && v[0]) || [], []).join(''),
       location: location()
     }
   };
-  var peg$f256 = function(kw_create, kw_index, kw_if_not_exists, name, kw_on, table, columns) {
+  var peg$f257 = function(kw_create, kw_index, kw_if_not_exists, name, kw_on, table, columns) {
     return {
       type: 'create_index',
       create_keyword: kw_create,
@@ -1623,7 +1634,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f257 = function(kw_create, kw_type, name, kw_as, fields) {
+  var peg$f258 = function(kw_create, kw_type, name, kw_as, fields) {
     return {
       type: 'create_type',
       type_variant: 'composite_type',
@@ -1635,7 +1646,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f258 = function(name, type) {
+  var peg$f259 = function(name, type) {
     return {
       type: 'composite_type_field',
       name: name,
@@ -1643,10 +1654,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f259 = function(head, tail) {
+  var peg$f260 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f260 = function(kw_create, kw_type, name, kw_as, kw_enum, values) {
+  var peg$f261 = function(kw_create, kw_type, name, kw_as, kw_enum, values) {
     return {
       type: 'create_type',
       type_variant: 'enum_type',
@@ -1659,10 +1670,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f261 = function(head, tail) {
+  var peg$f262 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f262 = function(kw_create, kw_type, name, kw_as, kw_range, values) {
+  var peg$f263 = function(kw_create, kw_type, name, kw_as, kw_range, values) {
     return {
       type: 'create_type',
       type_variant: 'range_type',
@@ -1675,7 +1686,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f263 = function(name, val) {
+  var peg$f264 = function(name, val) {
     if (val.type === 'number') {
       val = val.value
     }
@@ -1686,7 +1697,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f264 = function(name) {
+  var peg$f265 = function(name) {
     return {
       type: 'assign_value_expr',
       name: name,
@@ -1694,10 +1705,10 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f265 = function(head, tail) {
+  var peg$f266 = function(head, tail) {
     return createList(head, tail);
   };
-  var peg$f266 = function(kw_create, kw_type, name, values) {
+  var peg$f267 = function(kw_create, kw_type, name, values) {
     return {
       type: 'create_type',
       type_variant: 'base_type',
@@ -1708,7 +1719,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f267 = function(kw_drop, kw_type, kw_if_exists, names, dependency_action) {
+  var peg$f268 = function(kw_drop, kw_type, kw_if_exists, names, dependency_action) {
     return {
       type: 'drop_type',
       drop_keyword: kw_drop,
@@ -1719,7 +1730,7 @@ function peg$parse(input, options) {
       location: location()
     }
   };
-  var peg$f268 = function(keyword, if_exists_keyword, views, dependency_action) {
+  var peg$f269 = function(keyword, if_exists_keyword, views, dependency_action) {
       return {
         type: 'drop_view',
         keyword: keyword,
@@ -1728,22 +1739,54 @@ function peg$parse(input, options) {
         dependency_action: dependency_action || null,
       }
     };
-  var peg$f269 = function(head, tail) {
+  var peg$f270 = function(head, tail) {
       return createList(head, tail);
     };
-  var peg$f270 = function(view) {
+  var peg$f271 = function(view) {
       return  {
         type: 'view',
         value  : view,
       }
     };
-  var peg$f271 = function(val) {
+  var peg$f272 = function(val) {
     return {
       type: 'keyword',
       value: val && val[0],
       location: location()
     }
   };
+  var peg$f273 = function(assignments) {
+      return {
+        type: 'set',
+        assignments: assignments,
+        location: location()
+      }
+    };
+  var peg$f274 = function(value) {
+      return {
+        type: 'session_authorization',
+        value: value,
+        location: location()
+      }
+    };
+  var peg$f275 = function(name, head, tail) {
+      return {
+        type: 'search_path',
+        value: createList(head, tail),
+        location: location()
+      }
+    };
+  var peg$f276 = function(head, tail) {
+      return createList(head, tail)
+    };
+  var peg$f277 = function(name, value) {
+      return {
+        type: 'variable',
+        name: name[1],
+        value: value,
+        location: location()
+      }
+    };
   var peg$currPos = 0;
   var peg$savedPos = 0;
   var peg$posDetailsCache = [{ line: 1, column: 1 }];
@@ -2007,6 +2050,9 @@ function peg$parse(input, options) {
                       s0 = peg$parsecreate_type_stmt();
                       if (s0 === peg$FAILED) {
                         s0 = peg$parsedrop_type_stmt();
+                        if (s0 === peg$FAILED) {
+                          s0 = peg$parseset_stmt();
+                        }
                       }
                     }
                   }
@@ -9602,13 +9648,13 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_COUNT() {
+  function peg$parseKW_TO() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c108) {
-      s1 = input.substr(peg$currPos, 5);
-      peg$currPos += 5;
+    if (input.substr(peg$currPos, 2).toLowerCase() === peg$c108) {
+      s1 = input.substr(peg$currPos, 2);
+      peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
       if (peg$silentFails === 0) { peg$fail(peg$e125); }
@@ -9639,13 +9685,13 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_MAX() {
+  function peg$parseKW_COUNT() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 3).toLowerCase() === peg$c109) {
-      s1 = input.substr(peg$currPos, 3);
-      peg$currPos += 3;
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c109) {
+      s1 = input.substr(peg$currPos, 5);
+      peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
       if (peg$silentFails === 0) { peg$fail(peg$e126); }
@@ -9676,7 +9722,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_MIN() {
+  function peg$parseKW_MAX() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9713,7 +9759,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_SUM() {
+  function peg$parseKW_MIN() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9750,7 +9796,7 @@ function peg$parse(input, options) {
     return s0;
   }
 
-  function peg$parseKW_AVG() {
+  function peg$parseKW_SUM() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
@@ -9787,16 +9833,53 @@ function peg$parse(input, options) {
     return s0;
   }
 
+  function peg$parseKW_AVG() {
+    var s0, s1, s2, s3;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 3).toLowerCase() === peg$c113) {
+      s1 = input.substr(peg$currPos, 3);
+      peg$currPos += 3;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e130); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$currPos;
+      peg$silentFails++;
+      s3 = peg$parseident_start();
+      peg$silentFails--;
+      if (s3 === peg$FAILED) {
+        s2 = undefined;
+      } else {
+        peg$currPos = s2;
+        s2 = peg$FAILED;
+      }
+      if (s2 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s0 = peg$f166();
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
   function peg$parseKW_CAST() {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c113) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c114) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e130); }
+      if (peg$silentFails === 0) { peg$fail(peg$e131); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9811,7 +9894,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f166(s1);
+        s0 = peg$f167(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9828,12 +9911,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c114) {
+    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c115) {
       s1 = input.substr(peg$currPos, 9);
       peg$currPos += 9;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e131); }
+      if (peg$silentFails === 0) { peg$fail(peg$e132); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9848,7 +9931,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f167(s1);
+        s0 = peg$f168(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9865,12 +9948,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c115) {
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c116) {
       s1 = input.substr(peg$currPos, 11);
       peg$currPos += 11;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e132); }
+      if (peg$silentFails === 0) { peg$fail(peg$e133); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9885,7 +9968,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f168(s1);
+        s0 = peg$f169(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9902,12 +9985,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 10).toLowerCase() === peg$c116) {
+    if (input.substr(peg$currPos, 10).toLowerCase() === peg$c117) {
       s1 = input.substr(peg$currPos, 10);
       peg$currPos += 10;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e133); }
+      if (peg$silentFails === 0) { peg$fail(peg$e134); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9922,7 +10005,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f169(s1);
+        s0 = peg$f170(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9939,12 +10022,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c117) {
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c118) {
       s1 = input.substr(peg$currPos, 5);
       peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e134); }
+      if (peg$silentFails === 0) { peg$fail(peg$e135); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9959,7 +10042,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f170(s1);
+        s0 = peg$f171(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -9976,12 +10059,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c118) {
+    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c119) {
       s1 = input.substr(peg$currPos, 7);
       peg$currPos += 7;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e135); }
+      if (peg$silentFails === 0) { peg$fail(peg$e136); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -9996,7 +10079,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f171(s1);
+        s0 = peg$f172(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10013,12 +10096,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c119) {
+    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c120) {
       s1 = input.substr(peg$currPos, 8);
       peg$currPos += 8;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e136); }
+      if (peg$silentFails === 0) { peg$fail(peg$e137); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10033,7 +10116,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f172(s1);
+        s0 = peg$f173(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10050,12 +10133,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c120) {
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c121) {
       s1 = input.substr(peg$currPos, 11);
       peg$currPos += 11;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e137); }
+      if (peg$silentFails === 0) { peg$fail(peg$e138); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10070,7 +10153,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f173(s1);
+        s0 = peg$f174(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10087,12 +10170,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c121) {
+    if (input.substr(peg$currPos, 8).toLowerCase() === peg$c122) {
       s1 = input.substr(peg$currPos, 8);
       peg$currPos += 8;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e138); }
+      if (peg$silentFails === 0) { peg$fail(peg$e139); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10107,7 +10190,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f174(s1);
+        s0 = peg$f175(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10124,12 +10207,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c122) {
+    if (input.substr(peg$currPos, 9).toLowerCase() === peg$c123) {
       s1 = input.substr(peg$currPos, 9);
       peg$currPos += 9;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e139); }
+      if (peg$silentFails === 0) { peg$fail(peg$e140); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10144,7 +10227,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f175(s1);
+        s0 = peg$f176(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10161,12 +10244,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c123) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c124) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e140); }
+      if (peg$silentFails === 0) { peg$fail(peg$e141); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10181,7 +10264,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f176(s1);
+        s0 = peg$f177(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10198,12 +10281,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c124) {
+    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c125) {
       s1 = input.substr(peg$currPos, 4);
       peg$currPos += 4;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e141); }
+      if (peg$silentFails === 0) { peg$fail(peg$e142); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10218,7 +10301,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f177(s1);
+        s0 = peg$f178(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10235,12 +10318,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c125) {
+    if (input.substr(peg$currPos, 5).toLowerCase() === peg$c126) {
       s1 = input.substr(peg$currPos, 5);
       peg$currPos += 5;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e142); }
+      if (peg$silentFails === 0) { peg$fail(peg$e143); }
     }
     if (s1 !== peg$FAILED) {
       s2 = peg$currPos;
@@ -10255,7 +10338,7 @@ function peg$parse(input, options) {
       }
       if (s2 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f178(s1);
+        s0 = peg$f179(s1);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10342,11 +10425,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 91) {
-      s0 = peg$c126;
+      s0 = peg$c127;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e143); }
+      if (peg$silentFails === 0) { peg$fail(peg$e144); }
     }
 
     return s0;
@@ -10356,11 +10439,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 93) {
-      s0 = peg$c127;
+      s0 = peg$c128;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e144); }
+      if (peg$silentFails === 0) { peg$fail(peg$e145); }
     }
 
     return s0;
@@ -10370,11 +10453,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 123) {
-      s0 = peg$c128;
+      s0 = peg$c129;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e145); }
+      if (peg$silentFails === 0) { peg$fail(peg$e146); }
     }
 
     return s0;
@@ -10384,11 +10467,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 125) {
-      s0 = peg$c129;
+      s0 = peg$c130;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e146); }
+      if (peg$silentFails === 0) { peg$fail(peg$e147); }
     }
 
     return s0;
@@ -10449,7 +10532,7 @@ function peg$parse(input, options) {
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e147); }
+      if (peg$silentFails === 0) { peg$fail(peg$e148); }
     }
 
     return s0;
@@ -10470,12 +10553,12 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3, s4, s5;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 2) === peg$c130) {
-      s1 = peg$c130;
+    if (input.substr(peg$currPos, 2) === peg$c131) {
+      s1 = peg$c131;
       peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e148); }
+      if (peg$silentFails === 0) { peg$fail(peg$e149); }
     }
     if (s1 !== peg$FAILED) {
       s2 = [];
@@ -10544,24 +10627,24 @@ function peg$parse(input, options) {
     var s0, s1, s2, s3, s4, s5;
 
     s0 = peg$currPos;
-    if (input.substr(peg$currPos, 2) === peg$c131) {
-      s1 = peg$c131;
+    if (input.substr(peg$currPos, 2) === peg$c132) {
+      s1 = peg$c132;
       peg$currPos += 2;
     } else {
       s1 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e149); }
+      if (peg$silentFails === 0) { peg$fail(peg$e150); }
     }
     if (s1 !== peg$FAILED) {
       s2 = [];
       s3 = peg$currPos;
       s4 = peg$currPos;
       peg$silentFails++;
-      if (input.substr(peg$currPos, 2) === peg$c132) {
-        s5 = peg$c132;
+      if (input.substr(peg$currPos, 2) === peg$c133) {
+        s5 = peg$c133;
         peg$currPos += 2;
       } else {
         s5 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e150); }
+        if (peg$silentFails === 0) { peg$fail(peg$e151); }
       }
       peg$silentFails--;
       if (s5 === peg$FAILED) {
@@ -10588,12 +10671,12 @@ function peg$parse(input, options) {
         s3 = peg$currPos;
         s4 = peg$currPos;
         peg$silentFails++;
-        if (input.substr(peg$currPos, 2) === peg$c132) {
-          s5 = peg$c132;
+        if (input.substr(peg$currPos, 2) === peg$c133) {
+          s5 = peg$c133;
           peg$currPos += 2;
         } else {
           s5 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$e150); }
+          if (peg$silentFails === 0) { peg$fail(peg$e151); }
         }
         peg$silentFails--;
         if (s5 === peg$FAILED) {
@@ -10616,12 +10699,12 @@ function peg$parse(input, options) {
           s3 = peg$FAILED;
         }
       }
-      if (input.substr(peg$currPos, 2) === peg$c132) {
-        s3 = peg$c132;
+      if (input.substr(peg$currPos, 2) === peg$c133) {
+        s3 = peg$c133;
         peg$currPos += 2;
       } else {
         s3 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e150); }
+        if (peg$silentFails === 0) { peg$fail(peg$e151); }
       }
       if (s3 !== peg$FAILED) {
         s1 = [s1, s2, s3];
@@ -10697,11 +10780,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 59) {
-      s0 = peg$c133;
+      s0 = peg$c134;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e151); }
+      if (peg$silentFails === 0) { peg$fail(peg$e152); }
     }
 
     return s0;
@@ -10725,7 +10808,7 @@ function peg$parse(input, options) {
 
     s0 = peg$currPos;
     peg$savedPos = peg$currPos;
-    s1 = peg$f179();
+    s1 = peg$f180();
     if (s1) {
       s1 = undefined;
     } else {
@@ -10739,7 +10822,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f180(s3);
+        s0 = peg$f181(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10765,7 +10848,7 @@ function peg$parse(input, options) {
         s5 = peg$parseproc_expr();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f181(s1, s5);
+          s0 = peg$f182(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -10792,7 +10875,7 @@ function peg$parse(input, options) {
       s3 = peg$parseproc_expr();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f182(s3);
+        s0 = peg$f183(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -10867,7 +10950,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f183(s1, s2);
+      s0 = peg$f184(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -10921,7 +11004,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f184(s1, s2);
+      s0 = peg$f185(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -10946,7 +11029,7 @@ function peg$parse(input, options) {
           s7 = peg$parseon_clause();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f185(s1, s3, s5, s7);
+            s0 = peg$f186(s1, s3, s5, s7);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -10990,7 +11073,7 @@ function peg$parse(input, options) {
                   s5 = peg$parseRPAREN();
                   if (s5 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f186(s3);
+                    s0 = peg$f187(s3);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -11028,7 +11111,7 @@ function peg$parse(input, options) {
           s7 = peg$parseRPAREN();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f187(s1, s5);
+            s0 = peg$f188(s1, s5);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11054,12 +11137,12 @@ function peg$parse(input, options) {
 
     s0 = peg$currPos;
     s1 = peg$currPos;
-    if (input.substr(peg$currPos, 12).toLowerCase() === peg$c134) {
+    if (input.substr(peg$currPos, 12).toLowerCase() === peg$c135) {
       s2 = input.substr(peg$currPos, 12);
       peg$currPos += 12;
     } else {
       s2 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e152); }
+      if (peg$silentFails === 0) { peg$fail(peg$e153); }
     }
     if (s2 !== peg$FAILED) {
       s3 = peg$currPos;
@@ -11085,12 +11168,12 @@ function peg$parse(input, options) {
     }
     if (s1 === peg$FAILED) {
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 12).toLowerCase() === peg$c135) {
+      if (input.substr(peg$currPos, 12).toLowerCase() === peg$c136) {
         s2 = input.substr(peg$currPos, 12);
         peg$currPos += 12;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$e153); }
+        if (peg$silentFails === 0) { peg$fail(peg$e154); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -11116,12 +11199,12 @@ function peg$parse(input, options) {
       }
       if (s1 === peg$FAILED) {
         s1 = peg$currPos;
-        if (input.substr(peg$currPos, 12).toLowerCase() === peg$c136) {
+        if (input.substr(peg$currPos, 12).toLowerCase() === peg$c137) {
           s2 = input.substr(peg$currPos, 12);
           peg$currPos += 12;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$e154); }
+          if (peg$silentFails === 0) { peg$fail(peg$e155); }
         }
         if (s2 !== peg$FAILED) {
           s3 = peg$currPos;
@@ -11147,12 +11230,12 @@ function peg$parse(input, options) {
         }
         if (s1 === peg$FAILED) {
           s1 = peg$currPos;
-          if (input.substr(peg$currPos, 17).toLowerCase() === peg$c137) {
+          if (input.substr(peg$currPos, 17).toLowerCase() === peg$c138) {
             s2 = input.substr(peg$currPos, 17);
             peg$currPos += 17;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$e155); }
+            if (peg$silentFails === 0) { peg$fail(peg$e156); }
           }
           if (s2 !== peg$FAILED) {
             s3 = peg$currPos;
@@ -11178,12 +11261,12 @@ function peg$parse(input, options) {
           }
           if (s1 === peg$FAILED) {
             s1 = peg$currPos;
-            if (input.substr(peg$currPos, 9).toLowerCase() === peg$c138) {
+            if (input.substr(peg$currPos, 9).toLowerCase() === peg$c139) {
               s2 = input.substr(peg$currPos, 9);
               peg$currPos += 9;
             } else {
               s2 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$e156); }
+              if (peg$silentFails === 0) { peg$fail(peg$e157); }
             }
             if (s2 !== peg$FAILED) {
               s3 = peg$currPos;
@@ -11209,12 +11292,12 @@ function peg$parse(input, options) {
             }
             if (s1 === peg$FAILED) {
               s1 = peg$currPos;
-              if (input.substr(peg$currPos, 14).toLowerCase() === peg$c139) {
+              if (input.substr(peg$currPos, 14).toLowerCase() === peg$c140) {
                 s2 = input.substr(peg$currPos, 14);
                 peg$currPos += 14;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$e157); }
+                if (peg$silentFails === 0) { peg$fail(peg$e158); }
               }
               if (s2 !== peg$FAILED) {
                 s3 = peg$currPos;
@@ -11240,12 +11323,12 @@ function peg$parse(input, options) {
               }
               if (s1 === peg$FAILED) {
                 s1 = peg$currPos;
-                if (input.substr(peg$currPos, 12).toLowerCase() === peg$c140) {
+                if (input.substr(peg$currPos, 12).toLowerCase() === peg$c141) {
                   s2 = input.substr(peg$currPos, 12);
                   peg$currPos += 12;
                 } else {
                   s2 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$e158); }
+                  if (peg$silentFails === 0) { peg$fail(peg$e159); }
                 }
                 if (s2 !== peg$FAILED) {
                   s3 = peg$currPos;
@@ -11271,12 +11354,12 @@ function peg$parse(input, options) {
                 }
                 if (s1 === peg$FAILED) {
                   s1 = peg$currPos;
-                  if (input.substr(peg$currPos, 11).toLowerCase() === peg$c141) {
+                  if (input.substr(peg$currPos, 11).toLowerCase() === peg$c142) {
                     s2 = input.substr(peg$currPos, 11);
                     peg$currPos += 11;
                   } else {
                     s2 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$e159); }
+                    if (peg$silentFails === 0) { peg$fail(peg$e160); }
                   }
                   if (s2 !== peg$FAILED) {
                     s3 = peg$currPos;
@@ -11302,12 +11385,12 @@ function peg$parse(input, options) {
                   }
                   if (s1 === peg$FAILED) {
                     s1 = peg$currPos;
-                    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c142) {
+                    if (input.substr(peg$currPos, 4).toLowerCase() === peg$c143) {
                       s2 = input.substr(peg$currPos, 4);
                       peg$currPos += 4;
                     } else {
                       s2 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$e160); }
+                      if (peg$silentFails === 0) { peg$fail(peg$e161); }
                     }
                     if (s2 !== peg$FAILED) {
                       s3 = peg$currPos;
@@ -11341,7 +11424,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f188(s1);
+      s1 = peg$f189(s1);
     }
     s0 = s1;
 
@@ -11393,7 +11476,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f189(s1, s2);
+      s0 = peg$f190(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -11415,7 +11498,7 @@ function peg$parse(input, options) {
         s5 = peg$parseRBRAKE();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f190(s3);
+          s0 = peg$f191(s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11453,7 +11536,7 @@ function peg$parse(input, options) {
       if (s2 !== peg$FAILED) {
         s3 = peg$parsemem_chain();
         peg$savedPos = s0;
-        s0 = peg$f191(s2, s3);
+        s0 = peg$f192(s2, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -11480,7 +11563,7 @@ function peg$parse(input, options) {
           s5 = peg$parseRBRACE();
           if (s5 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f192(s3, s4);
+            s0 = peg$f193(s3, s4);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11552,7 +11635,7 @@ function peg$parse(input, options) {
       }
     }
     peg$savedPos = s0;
-    s1 = peg$f193(s1);
+    s1 = peg$f194(s1);
     s0 = s1;
 
     return s0;
@@ -11562,11 +11645,11 @@ function peg$parse(input, options) {
     var s0;
 
     if (input.charCodeAt(peg$currPos) === 36) {
-      s0 = peg$c143;
+      s0 = peg$c144;
       peg$currPos++;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e161); }
+      if (peg$silentFails === 0) { peg$fail(peg$e162); }
     }
 
     return s0;
@@ -11575,12 +11658,12 @@ function peg$parse(input, options) {
   function peg$parseKW_RETURN() {
     var s0;
 
-    if (input.substr(peg$currPos, 6).toLowerCase() === peg$c144) {
+    if (input.substr(peg$currPos, 6).toLowerCase() === peg$c145) {
       s0 = input.substr(peg$currPos, 6);
       peg$currPos += 6;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e162); }
+      if (peg$silentFails === 0) { peg$fail(peg$e163); }
     }
 
     return s0;
@@ -11589,12 +11672,12 @@ function peg$parse(input, options) {
   function peg$parseKW_ASSIGN() {
     var s0;
 
-    if (input.substr(peg$currPos, 2) === peg$c145) {
-      s0 = peg$c145;
+    if (input.substr(peg$currPos, 2) === peg$c146) {
+      s0 = peg$c146;
       peg$currPos += 2;
     } else {
       s0 = peg$FAILED;
-      if (peg$silentFails === 0) { peg$fail(peg$e163); }
+      if (peg$silentFails === 0) { peg$fail(peg$e164); }
     }
 
     return s0;
@@ -11623,7 +11706,7 @@ function peg$parse(input, options) {
             s9 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f194(s1, s3, s7, s9);
+          s0 = peg$f195(s1, s3, s7, s9);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11653,7 +11736,7 @@ function peg$parse(input, options) {
         s5 = peg$parsetable_name();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f195(s1, s5);
+          s0 = peg$f196(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11671,7 +11754,7 @@ function peg$parse(input, options) {
       s1 = peg$parsetable_name();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f196(s1);
+        s1 = peg$f197(s1);
       }
       s0 = s1;
     }
@@ -11693,7 +11776,7 @@ function peg$parse(input, options) {
         if (s5 !== peg$FAILED) {
           s6 = peg$parse__();
           peg$savedPos = s0;
-          s0 = peg$f197(s1, s3, s5);
+          s0 = peg$f198(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11715,7 +11798,7 @@ function peg$parse(input, options) {
         if (s3 !== peg$FAILED) {
           s4 = peg$parse__();
           peg$savedPos = s0;
-          s0 = peg$f198(s1, s3);
+          s0 = peg$f199(s1, s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11736,7 +11819,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_TABLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f199(s1);
+      s1 = peg$f200(s1);
     }
     s0 = s1;
 
@@ -11759,7 +11842,7 @@ function peg$parse(input, options) {
           s7 = peg$parseselect_stmt();
           if (s7 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f200(s1, s3, s5, s7);
+            s0 = peg$f201(s1, s3, s5, s7);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -11796,7 +11879,7 @@ function peg$parse(input, options) {
                 s11 = peg$parseRPAREN();
                 if (s11 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f201(s1, s3, s5, s9);
+                  s0 = peg$f202(s1, s3, s5, s9);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -11838,7 +11921,7 @@ function peg$parse(input, options) {
                 s9 = peg$parseRPAREN();
                 if (s9 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f202(s1, s3, s7);
+                  s0 = peg$f203(s1, s3, s7);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -11872,7 +11955,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_CREATE_TABLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f203(s1);
+      s1 = peg$f204(s1);
     }
     s0 = s1;
 
@@ -11886,7 +11969,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_IF_NOT_EXISTS();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f204(s1);
+      s1 = peg$f205(s1);
     }
     s0 = s1;
 
@@ -11952,7 +12035,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f205(s1, s2);
+      s0 = peg$f206(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -11974,7 +12057,7 @@ function peg$parse(input, options) {
         s5 = peg$parsefield_constraint_list();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f206(s1, s3, s5);
+          s0 = peg$f207(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -11995,7 +12078,7 @@ function peg$parse(input, options) {
         s3 = peg$parsefield_data_type();
         if (s3 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f207(s1, s3);
+          s0 = peg$f208(s1, s3);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12121,7 +12204,7 @@ function peg$parse(input, options) {
                         s21 = null;
                       }
                       peg$savedPos = s0;
-                      s0 = peg$f208(s1, s5, s6, s10, s12, s16, s17, s21);
+                      s0 = peg$f209(s1, s5, s6, s10, s12, s16, s17, s21);
                     } else {
                       peg$currPos = s0;
                       s0 = peg$FAILED;
@@ -12190,7 +12273,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f209(s1, s3, s5);
+          s0 = peg$f210(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12261,7 +12344,7 @@ function peg$parse(input, options) {
           s8 = peg$parseRPAREN();
           if (s8 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f210(s1, s5, s6);
+            s0 = peg$f211(s1, s5, s6);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -12336,7 +12419,7 @@ function peg$parse(input, options) {
           s8 = peg$parseRPAREN();
           if (s8 !== peg$FAILED) {
             peg$savedPos = s0;
-            s0 = peg$f211(s1, s5, s6);
+            s0 = peg$f212(s1, s5, s6);
           } else {
             peg$currPos = s0;
             s0 = peg$FAILED;
@@ -12358,7 +12441,7 @@ function peg$parse(input, options) {
       s1 = peg$parseident();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f212(s1);
+        s1 = peg$f213(s1);
       }
       s0 = s1;
     }
@@ -12397,7 +12480,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f213(s1, s2);
+      s0 = peg$f214(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -12436,7 +12519,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_not_null();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f214(s1);
+      s1 = peg$f215(s1);
     }
     s0 = s1;
 
@@ -12450,7 +12533,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NOT_NULL();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f215(s1);
+      s1 = peg$f216(s1);
     }
     s0 = s1;
 
@@ -12464,7 +12547,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_primary_key();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f216(s1);
+      s1 = peg$f217(s1);
     }
     s0 = s1;
 
@@ -12478,7 +12561,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_PRIMARY_KEY();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f217(s1);
+      s1 = peg$f218(s1);
     }
     s0 = s1;
 
@@ -12492,7 +12575,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_unique();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f218(s1);
+      s1 = peg$f219(s1);
     }
     s0 = s1;
 
@@ -12506,7 +12589,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_UNIQUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f219(s1);
+      s1 = peg$f220(s1);
     }
     s0 = s1;
 
@@ -12520,7 +12603,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_auto_increment();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f220(s1);
+      s1 = peg$f221(s1);
     }
     s0 = s1;
 
@@ -12534,7 +12617,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_AUTO_INCREMENT();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f221(s1);
+      s1 = peg$f222(s1);
     }
     s0 = s1;
 
@@ -12561,7 +12644,7 @@ function peg$parse(input, options) {
           s7 = null;
         }
         peg$savedPos = s0;
-        s0 = peg$f222(s1, s3, s5, s7);
+        s0 = peg$f223(s1, s3, s5, s7);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12581,7 +12664,7 @@ function peg$parse(input, options) {
     s1 = peg$parsekeyword_always();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f223(s1);
+      s1 = peg$f224(s1);
     }
     s0 = s1;
     if (s0 === peg$FAILED) {
@@ -12589,7 +12672,7 @@ function peg$parse(input, options) {
       s1 = peg$parsekeyword_by_default();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f224(s1);
+        s1 = peg$f225(s1);
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -12597,7 +12680,7 @@ function peg$parse(input, options) {
         s1 = peg$parsekeyword_by_default_on_null();
         if (s1 !== peg$FAILED) {
           peg$savedPos = s0;
-          s1 = peg$f225(s1);
+          s1 = peg$f226(s1);
         }
         s0 = s1;
       }
@@ -12622,7 +12705,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f226(s1, s3);
+        s0 = peg$f227(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12642,7 +12725,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_ALWAYS();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f227(s1);
+      s1 = peg$f228(s1);
     }
     s0 = s1;
 
@@ -12656,7 +12739,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_BY_DEFAULT();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f228(s1);
+      s1 = peg$f229(s1);
     }
     s0 = s1;
 
@@ -12670,7 +12753,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_BY_DEFAULT_ON_NULL();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f229(s1);
+      s1 = peg$f230(s1);
     }
     s0 = s1;
 
@@ -12687,7 +12770,7 @@ function peg$parse(input, options) {
       s3 = peg$parseident();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f230(s3);
+        s0 = peg$f231(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12731,7 +12814,7 @@ function peg$parse(input, options) {
       }
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f231(s1);
+        s1 = peg$f232(s1);
       }
       s0 = s1;
     }
@@ -12770,7 +12853,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f232(s1, s2);
+      s0 = peg$f233(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -12830,7 +12913,7 @@ function peg$parse(input, options) {
         s5 = peg$parseint();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f233(s5);
+          s0 = peg$f234(s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12860,7 +12943,7 @@ function peg$parse(input, options) {
         s5 = peg$parseint();
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f234(s5);
+          s0 = peg$f235(s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -12887,7 +12970,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f235(s3);
+        s0 = peg$f236(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12910,7 +12993,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f236(s3);
+        s0 = peg$f237(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12930,7 +13013,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_MAXVALUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f237();
+      s1 = peg$f238();
     }
     s0 = s1;
 
@@ -12944,7 +13027,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_MINVALUE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f238();
+      s1 = peg$f239();
     }
     s0 = s1;
 
@@ -12961,7 +13044,7 @@ function peg$parse(input, options) {
       s3 = peg$parseint();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f239(s3);
+        s0 = peg$f240(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -12981,7 +13064,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_CYCLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f240();
+      s1 = peg$f241();
     }
     s0 = s1;
 
@@ -12995,7 +13078,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_NO_CYCLE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f241();
+      s1 = peg$f242();
     }
     s0 = s1;
 
@@ -13012,7 +13095,7 @@ function peg$parse(input, options) {
       s3 = peg$parsecolumn_ref();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f242(s3);
+        s0 = peg$f243(s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13032,7 +13115,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_OWNED_BY_NONE();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f243();
+      s1 = peg$f244();
     }
     s0 = s1;
 
@@ -13058,7 +13141,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f244(s1, s3, s5);
+          s0 = peg$f245(s1, s3, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13097,7 +13180,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f245(s1);
+      s1 = peg$f246(s1);
     }
     s0 = s1;
 
@@ -13114,7 +13197,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f246(s1, s3);
+        s0 = peg$f247(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13134,7 +13217,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_ADD();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f247(s1);
+      s1 = peg$f248(s1);
     }
     s0 = s1;
 
@@ -13151,7 +13234,7 @@ function peg$parse(input, options) {
       s3 = peg$parsecolumn_node();
       if (s3 === peg$FAILED) {
         peg$savedPos = peg$currPos;
-        s3 = peg$f248(s1);
+        s3 = peg$f249(s1);
         if (s3) {
           s3 = peg$FAILED;
         } else {
@@ -13160,7 +13243,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f249(s1, s3);
+        s0 = peg$f250(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13180,7 +13263,7 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_COLUMN();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f250(s1);
+      s1 = peg$f251(s1);
     }
     s0 = s1;
 
@@ -13197,7 +13280,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield();
       if (s3 === peg$FAILED) {
         peg$savedPos = peg$currPos;
-        s3 = peg$f251(s1);
+        s3 = peg$f252(s1);
         if (s3) {
           s3 = peg$FAILED;
         } else {
@@ -13206,7 +13289,7 @@ function peg$parse(input, options) {
       }
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f252(s1, s3);
+        s0 = peg$f253(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13241,7 +13324,7 @@ function peg$parse(input, options) {
     }
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f253(s1);
+      s1 = peg$f254(s1);
     }
     s0 = s1;
     if (s0 === peg$FAILED) {
@@ -13249,7 +13332,7 @@ function peg$parse(input, options) {
       s1 = peg$parseKW_MODIFY();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f254(s1);
+        s1 = peg$f255(s1);
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -13272,7 +13355,7 @@ function peg$parse(input, options) {
         }
         if (s1 !== peg$FAILED) {
           peg$savedPos = s0;
-          s1 = peg$f255(s1);
+          s1 = peg$f256(s1);
         }
         s0 = s1;
       }
@@ -13314,7 +13397,7 @@ function peg$parse(input, options) {
                   s17 = peg$parseRPAREN();
                   if (s17 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f256(s1, s3, s5, s7, s9, s11, s15);
+                    s0 = peg$f257(s1, s3, s5, s7, s9, s11, s15);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13393,7 +13476,7 @@ function peg$parse(input, options) {
                 s13 = peg$parseRPAREN();
                 if (s13 !== peg$FAILED) {
                   peg$savedPos = s0;
-                  s0 = peg$f257(s1, s3, s5, s7, s11);
+                  s0 = peg$f258(s1, s3, s5, s7, s11);
                 } else {
                   peg$currPos = s0;
                   s0 = peg$FAILED;
@@ -13436,7 +13519,7 @@ function peg$parse(input, options) {
       s3 = peg$parsefield_data_type();
       if (s3 !== peg$FAILED) {
         peg$savedPos = s0;
-        s0 = peg$f258(s1, s3);
+        s0 = peg$f259(s1, s3);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13494,7 +13577,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f259(s1, s2);
+      s0 = peg$f260(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13531,7 +13614,7 @@ function peg$parse(input, options) {
                   s15 = peg$parseRPAREN();
                   if (s15 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f260(s1, s3, s5, s7, s9, s13);
+                    s0 = peg$f261(s1, s3, s5, s7, s9, s13);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13613,7 +13696,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f261(s1, s2);
+      s0 = peg$f262(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13650,7 +13733,7 @@ function peg$parse(input, options) {
                   s15 = peg$parseRPAREN();
                   if (s15 !== peg$FAILED) {
                     peg$savedPos = s0;
-                    s0 = peg$f262(s1, s3, s5, s7, s9, s13);
+                    s0 = peg$f263(s1, s3, s5, s7, s9, s13);
                   } else {
                     peg$currPos = s0;
                     s0 = peg$FAILED;
@@ -13709,7 +13792,7 @@ function peg$parse(input, options) {
         }
         if (s5 !== peg$FAILED) {
           peg$savedPos = s0;
-          s0 = peg$f263(s1, s5);
+          s0 = peg$f264(s1, s5);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13727,7 +13810,7 @@ function peg$parse(input, options) {
       s1 = peg$parseident();
       if (s1 !== peg$FAILED) {
         peg$savedPos = s0;
-        s1 = peg$f264(s1);
+        s1 = peg$f265(s1);
       }
       s0 = s1;
     }
@@ -13780,7 +13863,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f265(s1, s2);
+      s0 = peg$f266(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13829,7 +13912,7 @@ function peg$parse(input, options) {
             s7 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f266(s1, s3, s5, s7);
+          s0 = peg$f267(s1, s3, s5, s7);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13872,7 +13955,7 @@ function peg$parse(input, options) {
             s9 = null;
           }
           peg$savedPos = s0;
-          s0 = peg$f267(s1, s3, s5, s7, s9);
+          s0 = peg$f268(s1, s3, s5, s7, s9);
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
@@ -13912,7 +13995,7 @@ function peg$parse(input, options) {
           s7 = null;
         }
         peg$savedPos = s0;
-        s0 = peg$f268(s1, s3, s5, s7);
+        s0 = peg$f269(s1, s3, s5, s7);
       } else {
         peg$currPos = s0;
         s0 = peg$FAILED;
@@ -13970,7 +14053,7 @@ function peg$parse(input, options) {
         }
       }
       peg$savedPos = s0;
-      s0 = peg$f269(s1, s2);
+      s0 = peg$f270(s1, s2);
     } else {
       peg$currPos = s0;
       s0 = peg$FAILED;
@@ -13986,7 +14069,7 @@ function peg$parse(input, options) {
     s1 = peg$parseident();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f270(s1);
+      s1 = peg$f271(s1);
     }
     s0 = s1;
 
@@ -14000,13 +14083,296 @@ function peg$parse(input, options) {
     s1 = peg$parseKW_DROP_VIEW();
     if (s1 !== peg$FAILED) {
       peg$savedPos = s0;
-      s1 = peg$f271(s1);
+      s1 = peg$f272(s1);
     }
     s0 = s1;
 
     return s0;
   }
 
+  function peg$parseset_stmt() {
+    var s0, s1, s2, s3;
+
+    s0 = peg$currPos;
+    s1 = peg$parseKW_SET();
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      s3 = peg$parsesession_authorization_assignment();
+      if (s3 === peg$FAILED) {
+        s3 = peg$parsesearch_path_assignment();
+        if (s3 === peg$FAILED) {
+          s3 = peg$parsevariable_assignment_list();
+        }
+      }
+      if (s3 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s0 = peg$f273(s3);
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsesession_authorization_assignment() {
+    var s0, s1, s2, s3, s4, s5, s6, s7;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 7).toLowerCase() === peg$c147) {
+      s1 = input.substr(peg$currPos, 7);
+      peg$currPos += 7;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e165); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      if (input.substr(peg$currPos, 13).toLowerCase() === peg$c148) {
+        s3 = input.substr(peg$currPos, 13);
+        peg$currPos += 13;
+      } else {
+        s3 = peg$FAILED;
+        if (peg$silentFails === 0) { peg$fail(peg$e166); }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseKW_TO();
+        if (s5 === peg$FAILED) {
+          if (input.charCodeAt(peg$currPos) === 61) {
+            s5 = peg$c4;
+            peg$currPos++;
+          } else {
+            s5 = peg$FAILED;
+            if (peg$silentFails === 0) { peg$fail(peg$e6); }
+          }
+        }
+        if (s5 !== peg$FAILED) {
+          s6 = peg$parse__();
+          s7 = peg$parseliteral_string();
+          if (s7 !== peg$FAILED) {
+            peg$savedPos = s0;
+            s0 = peg$f274(s7);
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsesearch_path_assignment() {
+    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;
+
+    s0 = peg$currPos;
+    if (input.substr(peg$currPos, 11).toLowerCase() === peg$c149) {
+      s1 = input.substr(peg$currPos, 11);
+      peg$currPos += 11;
+    } else {
+      s1 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e167); }
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      s3 = peg$parseKW_TO();
+      if (s3 === peg$FAILED) {
+        if (input.charCodeAt(peg$currPos) === 61) {
+          s3 = peg$c4;
+          peg$currPos++;
+        } else {
+          s3 = peg$FAILED;
+          if (peg$silentFails === 0) { peg$fail(peg$e6); }
+        }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseliteral_string();
+        if (s5 !== peg$FAILED) {
+          s6 = [];
+          s7 = peg$currPos;
+          s8 = peg$parse__();
+          s9 = peg$parseCOMMA();
+          if (s9 !== peg$FAILED) {
+            s10 = peg$parse__();
+            s11 = peg$parseliteral_string();
+            if (s11 !== peg$FAILED) {
+              s8 = [s8, s9, s10, s11];
+              s7 = s8;
+            } else {
+              peg$currPos = s7;
+              s7 = peg$FAILED;
+            }
+          } else {
+            peg$currPos = s7;
+            s7 = peg$FAILED;
+          }
+          while (s7 !== peg$FAILED) {
+            s6.push(s7);
+            s7 = peg$currPos;
+            s8 = peg$parse__();
+            s9 = peg$parseCOMMA();
+            if (s9 !== peg$FAILED) {
+              s10 = peg$parse__();
+              s11 = peg$parseliteral_string();
+              if (s11 !== peg$FAILED) {
+                s8 = [s8, s9, s10, s11];
+                s7 = s8;
+              } else {
+                peg$currPos = s7;
+                s7 = peg$FAILED;
+              }
+            } else {
+              peg$currPos = s7;
+              s7 = peg$FAILED;
+            }
+          }
+          peg$savedPos = s0;
+          s0 = peg$f275(s1, s5, s6);
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsevariable_assignment_list() {
+    var s0, s1, s2, s3, s4, s5, s6, s7;
+
+    s0 = peg$currPos;
+    s1 = peg$parsevariable_assignment();
+    if (s1 !== peg$FAILED) {
+      s2 = [];
+      s3 = peg$currPos;
+      s4 = peg$parse__();
+      s5 = peg$parseCOMMA();
+      if (s5 !== peg$FAILED) {
+        s6 = peg$parse__();
+        s7 = peg$parsevariable_assignment();
+        if (s7 !== peg$FAILED) {
+          s4 = [s4, s5, s6, s7];
+          s3 = s4;
+        } else {
+          peg$currPos = s3;
+          s3 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s3;
+        s3 = peg$FAILED;
+      }
+      while (s3 !== peg$FAILED) {
+        s2.push(s3);
+        s3 = peg$currPos;
+        s4 = peg$parse__();
+        s5 = peg$parseCOMMA();
+        if (s5 !== peg$FAILED) {
+          s6 = peg$parse__();
+          s7 = peg$parsevariable_assignment();
+          if (s7 !== peg$FAILED) {
+            s4 = [s4, s5, s6, s7];
+            s3 = s4;
+          } else {
+            peg$currPos = s3;
+            s3 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s3;
+          s3 = peg$FAILED;
+        }
+      }
+      peg$savedPos = s0;
+      s0 = peg$f276(s1, s2);
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
+  function peg$parsevariable_assignment() {
+    var s0, s1, s2, s3, s4, s5;
+
+    s0 = peg$currPos;
+    s1 = peg$currPos;
+    if (input.charCodeAt(peg$currPos) === 64) {
+      s2 = peg$c150;
+      peg$currPos++;
+    } else {
+      s2 = peg$FAILED;
+      if (peg$silentFails === 0) { peg$fail(peg$e168); }
+    }
+    if (s2 !== peg$FAILED) {
+      s3 = peg$parseident_name();
+      if (s3 !== peg$FAILED) {
+        s2 = [s2, s3];
+        s1 = s2;
+      } else {
+        peg$currPos = s1;
+        s1 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s1;
+      s1 = peg$FAILED;
+    }
+    if (s1 !== peg$FAILED) {
+      s2 = peg$parse__();
+      if (input.charCodeAt(peg$currPos) === 61) {
+        s3 = peg$c4;
+        peg$currPos++;
+      } else {
+        s3 = peg$FAILED;
+        if (peg$silentFails === 0) { peg$fail(peg$e6); }
+      }
+      if (s3 !== peg$FAILED) {
+        s4 = peg$parse__();
+        s5 = peg$parseliteral();
+        if (s5 === peg$FAILED) {
+          s5 = peg$parseor_expr();
+        }
+        if (s5 !== peg$FAILED) {
+          peg$savedPos = s0;
+          s0 = peg$f277(s1, s5);
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+    } else {
+      peg$currPos = s0;
+      s0 = peg$FAILED;
+    }
+
+    return s0;
+  }
+
 
   var reservedMap = module.exports.reservedMap || {};
 
diff --git a/packages/sql-parser/parser.pegjs b/packages/sql-parser/parser.pegjs
index 10c940fe..4de5a854 100644
--- a/packages/sql-parser/parser.pegjs
+++ b/packages/sql-parser/parser.pegjs
@@ -88,7 +88,8 @@ ast =
   alter_table_stmt /
   create_index_stmt /
   create_type_stmt /
-  drop_type_stmt
+  drop_type_stmt /
+  set_stmt
 
 union_stmt
   = head:select_stmt tail:(__ KW_UNION __ KW_ALL? __ select_stmt)* {
@@ -1127,6 +1128,7 @@ KW_KEY            = "KEY"i            !ident_start    { return 'KEY';      }
 KW_NOT            = "NOT"i            !ident_start    { return 'NOT';      }
 KW_AND            = "AND"i            !ident_start    { return 'AND';      }
 KW_OR             = "OR"i             !ident_start    { return 'OR';       }
+KW_TO             = "TO"i             !ident_start    { return 'TO';      }
 
 KW_COUNT          = "COUNT"i          !ident_start    { return 'COUNT';    }
 KW_MAX            = "MAX"i            !ident_start    { return 'MAX';      }
@@ -1990,3 +1992,57 @@ drop_view_keyword
     }
   }
 
+set_stmt
+  = KW_SET __
+    assignments:(
+      session_authorization_assignment /
+      search_path_assignment /
+      variable_assignment_list
+    ) {
+      return {
+        type: 'set',
+        assignments: assignments,
+        location: location()
+      }
+    }
+session_authorization_assignment
+  = "session"i __ "authorization"i __ 
+    (KW_TO / "=") __ 
+    value:literal_string {
+      return {
+        type: 'session_authorization',
+        value: value,
+        location: location()
+      }
+    }
+
+search_path_assignment
+  = name:"search_path"i __
+    (KW_TO / "=") __
+    head:literal_string
+    tail:(__ COMMA __ literal_string)* {
+      return {
+        type: 'search_path',
+        value: createList(head, tail),
+        location: location()
+      }
+    }
+
+variable_assignment_list
+  = head:variable_assignment
+    tail:(__ COMMA __ variable_assignment)* {
+      return createList(head, tail)
+    }
+
+variable_assignment
+  = name:("@" ident_name) __
+    "=" __
+    value:(literal / expr) {
+      return {
+        type: 'variable',
+        name: name[1],
+        value: value,
+        location: location()
+      }
+    }
+
diff --git a/packages/sql-parser/test/set.test.js b/packages/sql-parser/test/set.test.js
new file mode 100644
index 00000000..7952d225
--- /dev/null
+++ b/packages/sql-parser/test/set.test.js
@@ -0,0 +1,32 @@
+const { parse } = require('../index');
+
+describe('SET statement', () => {
+  describe('Basic statement', () => {
+    it('should success to parse', () => {
+      const sql = 'SET @var1 = 1, @var2 = 2;';
+      const result = parse(sql);
+      expect(result).toBeDefined();
+      expect(result).toMatchObject({
+        type: 'set',
+        variables: [
+          {
+            type: 'variable',
+            name: '@var1',
+            value: {
+              type: 'number',
+              value: '1',
+            },
+          },
+          {
+            type: 'variable',
+            name: '@var2',
+            value: {
+              type: 'number',
+              value: '2',
+            },
+          },
+        ],
+      });
+    });
+  });
+});
\ No newline at end of file