diff --git a/proto/meta.interface.proto b/proto/meta.interface.proto
index 51685611..2375ee16 100755
--- a/proto/meta.interface.proto
+++ b/proto/meta.interface.proto
@@ -362,8 +362,8 @@ message UserPrivilege {
     optional bool use_read_index                             = 15; // 读是否走folloewr read use read idx
     optional bool enable_plan_cache                          = 16; // 是否缓存执行计划
     optional RangePartitionType request_range_partition_type = 17; // 访问的Range分区类型
-    optional uint32 acl                                      = 18; //权限控制列表,bitmap
-    optional bool  if_exist                                  = 19;
+    optional uint32 acl                                      = 20; //权限控制列表,bitmap
+    optional bool  if_exist                                  = 21;
 };
 
 //集群信息
diff --git a/proto/optype.proto b/proto/optype.proto
index 896e3ff4..8dc121d8 100755
--- a/proto/optype.proto
+++ b/proto/optype.proto
@@ -145,4 +145,7 @@ enum OpType {
     OP_SPECIFY_SPLIT_KEYS                   = 199; // 指定RangePartition分区的预分裂Key
     OP_CONVERT_PARTITION                    = 200;
     OP_MODIFY_USER                          = 201; //改user
+    OP_CREATE_VIEW                          = 202; // 新建视图
+    OP_DROP_VIEW                            = 203; // 删除视图
+    OP_DROP_INVALID_PRIVILEGE               = 204; // 删除不存在的数据库/表的权限
 };
diff --git a/proto/store.interface.proto b/proto/store.interface.proto
index 64241fba..4364dae7 100755
--- a/proto/store.interface.proto
+++ b/proto/store.interface.proto
@@ -160,7 +160,7 @@ message StoreReq {
     optional uint64      sql_sign       = 28; // sql 签名
     repeated RegionInfo multi_new_region_infos = 29;
     optional ExtraReq   extra_req       = 30; // 非关键路径上的额外信息可以放在这里，避免该message过度膨胀
-    optional int64    sql_exec_timeout  = 31;
+    optional int64    sql_exec_timeout  = 33;
 };
 
 message RowValue {
@@ -236,7 +236,7 @@ message StoreRes {
     repeated int64 ttl_timestamp = 24;
     optional ExtraRes extra_res  = 25; // 非关键路径上的额外信息可以放在这里，避免该message过度膨胀
     optional BinlogQueryInfo binlog_info     = 26; //存放binlog信息
-    optional int64  read_disk_size =  27;
+    optional int64  read_disk_size =  28;
 };
 message InitRegion {
     required RegionInfo region_info     = 1;
diff --git a/src/common/schema_factory.cpp b/src/common/schema_factory.cpp
index 7b7cf5a8..7100f705 100644
--- a/src/common/schema_factory.cpp
+++ b/src/common/schema_factory.cpp
@@ -1368,7 +1368,7 @@ void SchemaFactory::update_show_db(const DataBaseVec& db_infos) {
     BAIDU_SCOPED_LOCK(_update_show_db_mutex);
     _show_db_info.clear();
     for (auto db_info : db_infos) {
-        DB_WARNING("update_show_db: %s.%s", db_info.namespace_name().c_str(), db_info.database().c_str())
+        DB_WARNING("update_show_db: %s.%s", db_info.namespace_name().c_str(), db_info.database().c_str());
         if (db_info.namespace_name() == "INTERNAL" && db_info.database() == "baikaldb") {
             //忽略INTERNAL.baikaldb
             continue;
diff --git a/src/expr/internal_functions.cpp b/src/expr/internal_functions.cpp
index fe6776ab..9ed3b151 100644
--- a/src/expr/internal_functions.cpp
+++ b/src/expr/internal_functions.cpp
@@ -2646,7 +2646,7 @@ ExprValue hex(const std::vector<ExprValue>& input) {
         res.str_val = ss.str();
     } else {
         num.cast_to(pb::STRING);
-        char * c = (char *)malloc(2 * num.str_val.size() + 1);
+        char* c = new char[2 * num.str_val.size() + 1];
         int idx = 0;
         for (char ch : num.str_val) {
             sprintf(c + idx, "%02X", static_cast<uint8_t>(ch));
@@ -2654,7 +2654,7 @@ ExprValue hex(const std::vector<ExprValue>& input) {
         }
         c[2 * num.str_val.size()] = 0;
         res.str_val = c;
-        delete c;
+        delete[] c;
     }
     std::transform(res.str_val.begin(), res.str_val.end(), res.str_val.begin(), ::toupper);
     return res;
diff --git a/src/protocol/show_helper.cpp b/src/protocol/show_helper.cpp
index 31eb773b..4e427be9 100644
--- a/src/protocol/show_helper.cpp
+++ b/src/protocol/show_helper.cpp
@@ -4611,7 +4611,7 @@ bool ShowHelper::_show_grants(const SmartSocket& client, const std::vector<std::
             std::string with_grant = "";
             std::string priv_str = get_priv_str(user_privilege.acl(), parser::GLOBAL_ACLS, with_grant);
             char msg[1024];
-            snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%' TO %s%s",
+            snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%%' TO %s%s",
                      priv_str.c_str(), priv_level.c_str(), username.c_str(), with_grant.c_str());
             row.emplace_back(msg);
             rows.emplace_back(row);
@@ -4623,7 +4623,7 @@ bool ShowHelper::_show_grants(const SmartSocket& client, const std::vector<std::
                 std::string with_grant = "";
                 std::string priv_str = get_priv_str(db.acl(), parser::DB_ACLS, with_grant);
                 char msg[1024];
-                snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%' TO %s%s",
+                snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%%' TO %s%s",
                          priv_str.c_str(), priv_level.c_str(), username.c_str(), with_grant.c_str());
                 row.emplace_back(msg);
                 rows.emplace_back(row);
@@ -4636,7 +4636,7 @@ bool ShowHelper::_show_grants(const SmartSocket& client, const std::vector<std::
                 std::string with_grant = "";
                 std::string priv_str = get_priv_str(table.acl(), parser::TABLE_ACLS, with_grant);
                 char msg[1024];
-                snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%' TO %s%s",
+                snprintf(msg, sizeof(msg), "GRANT %s ON '%s'@'%%' TO %s%s",
                          priv_str.c_str(), priv_level.c_str(), username.c_str(), with_grant.c_str());
                 row.emplace_back(msg);
                 rows.emplace_back(row);
diff --git a/test/test_common.cpp b/test/test_common.cpp
index 9339e6a9..5dc9a504 100644
--- a/test/test_common.cpp
+++ b/test/test_common.cpp
@@ -425,9 +425,9 @@ TEST(BvarMap, bvarmap) {
     uint64_t parent_sign = 2385825078143366794;
     std::set<uint64_t> subquery_signs = {8394144613061275097, 8919421716185942419};
     //bm << BvarMap(std::make_pair("abc", 1));
-    bm << BvarMap("abc", 1, 101, 101, 10, 1, 5, 3, 1, field_range_type, 1, parent_sign, subquery_signs);
-    bm << BvarMap("abc", 4, 102, 102, 20, 2, 6, 2, 1, field_range_type, 1, parent_sign, subquery_signs);
-    bm << BvarMap("bcd", 5, 103, 103, 30, 3, 7, 1, 1, field_range_type, 1, parent_sign, subquery_signs);
+    bm << BvarMap("abc", 1, 101, 101, 10, 1, 5, 3, 100, 1, field_range_type, 1, parent_sign, subquery_signs);
+    bm << BvarMap("abc", 4, 102, 102, 20, 2, 6, 2, 100, 1, field_range_type, 1, parent_sign, subquery_signs);
+    bm << BvarMap("bcd", 5, 103, 103, 30, 3, 7, 1, 100, 1, field_range_type, 1, parent_sign, subquery_signs);
     std::cout << bm.get_value();
 }