diff --git a/README.md b/README.md
index 05bda4c0..3d488b61 100644
--- a/README.md
+++ b/README.md
@@ -388,7 +388,6 @@ The following projects work with similar concepts as xo:
 * [sqlc](https://github.com/relops/sqlc)
 
 # TODO #
-* Column mapping option on custom queries
 * Finish support for --{incl, excl}[ude] types
 * Finish support for ignoring fields (ie, fields managed by database such as
   'modified' timestamps)
diff --git a/examples/mysql/booktest.go b/examples/mysql/booktest.go
index e676a109..176f1109 100644
--- a/examples/mysql/booktest.go
+++ b/examples/mysql/booktest.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"database/sql"
+	"flag"
 	"fmt"
 	"log"
 	"time"
@@ -11,12 +12,17 @@ import (
 	"github.com/knq/xo/examples/mysql/models"
 )
 
+var flagVerbose = flag.Bool("v", false, "verbose")
+
 func main() {
 	var err error
 
 	// set logging
-	models.XOLog = func(s string, p ...interface{}) {
-		fmt.Printf("> SQL: %s -- %v\n", s, p)
+	flag.Parse()
+	if *flagVerbose {
+		models.XOLog = func(s string, p ...interface{}) {
+			fmt.Printf("> SQL: %s -- %v\n", s, p)
+		}
 	}
 
 	// open database
diff --git a/examples/mysql/gen.sh b/examples/mysql/gen.sh
index e89e6825..3ea58d08 100755
--- a/examples/mysql/gen.sh
+++ b/examples/mysql/gen.sh
@@ -7,6 +7,8 @@ DBNAME=booktest
 
 DB=mysql://$DBUSER:$DBPASS@$DBHOST/$DBNAME
 
+EXTRA=$1
+
 SRC=$(realpath $(cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd ))
 
 XOBIN=$(which xo)
@@ -55,9 +57,9 @@ CREATE FUNCTION say_hello(s text) RETURNS text
   RETURN CONCAT('hello ', s);
 ENDSQL
 
-$XOBIN $DB -v -o $SRC/models
+$XOBIN $DB -o $SRC/models $EXTRA
 
-cat << ENDSQL | $XOBIN $DB -v -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models
+cat << ENDSQL | $XOBIN $DB -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models $EXTRA
 SELECT
   a.author_id AS author_id,
   a.name AS author_name,
@@ -73,8 +75,8 @@ ENDSQL
 pushd $SRC &> /dev/null
 
 go build
-./mysql
+./mysql $EXTRA
 
 popd &> /dev/null
 
-mysql -u $DBUSER -p$DBPASS $DBNAME <<< 'select * from books;'
+mysql -u $DBUSER -p$DBPASS $DBNAME -e 'select * from books;'
diff --git a/examples/postgres/booktest.go b/examples/postgres/booktest.go
index 7a61ec9a..311a7fa9 100644
--- a/examples/postgres/booktest.go
+++ b/examples/postgres/booktest.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"database/sql"
+	"flag"
 	"fmt"
 	"log"
 	"time"
@@ -11,12 +12,17 @@ import (
 	"github.com/knq/xo/examples/postgres/models"
 )
 
+var flagVerbose = flag.Bool("v", false, "verbose")
+
 func main() {
 	var err error
 
 	// set logging
-	models.XOLog = func(s string, p ...interface{}) {
-		fmt.Printf("> SQL: %s -- %v\n", s, p)
+	flag.Parse()
+	if *flagVerbose {
+		models.XOLog = func(s string, p ...interface{}) {
+			fmt.Printf("> SQL: %s -- %v\n", s, p)
+		}
 	}
 
 	// open database
diff --git a/examples/postgres/gen.sh b/examples/postgres/gen.sh
index a99bf5e4..08a15442 100755
--- a/examples/postgres/gen.sh
+++ b/examples/postgres/gen.sh
@@ -7,6 +7,8 @@ DBNAME=booktest
 
 DB=postgres://$DBUSER:$DBPASS@$DBHOST/$DBNAME
 
+EXTRA=$1
+
 SRC=$(realpath $(cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd ))
 
 XOBIN=$(which xo)
@@ -60,9 +62,9 @@ $$ LANGUAGE plpgsql;
 
 ENDSQL
 
-$XOBIN $DB -v -o $SRC/models
+$XOBIN $DB -o $SRC/models $EXTRA
 
-cat << ENDSQL | $XOBIN $DB -v -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models
+cat << ENDSQL | $XOBIN $DB -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models $EXTRA
 SELECT
   a.author_id::integer AS author_id,
   a.name::text AS author_name,
@@ -78,7 +80,7 @@ ENDSQL
 pushd $SRC &> /dev/null
 
 go build
-./postgres
+./postgres $EXTRA
 
 popd &> /dev/null
 
diff --git a/examples/sqlite/booktest.go b/examples/sqlite/booktest.go
index 332e286c..a23f0ae2 100644
--- a/examples/sqlite/booktest.go
+++ b/examples/sqlite/booktest.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"database/sql"
+	"flag"
 	"fmt"
 	"log"
 	"time"
@@ -11,12 +12,17 @@ import (
 	"github.com/knq/xo/examples/sqlite/models"
 )
 
+var flagVerbose = flag.Bool("v", false, "verbose")
+
 func main() {
 	var err error
 
 	// set logging
-	models.XOLog = func(s string, p ...interface{}) {
-		fmt.Printf("> SQL: %s -- %v\n", s, p)
+	flag.Parse()
+	if *flagVerbose {
+		models.XOLog = func(s string, p ...interface{}) {
+			fmt.Printf("> SQL: %s -- %v\n", s, p)
+		}
 	}
 
 	// open database
diff --git a/examples/sqlite/gen.sh b/examples/sqlite/gen.sh
index ab38b156..1c498ebe 100755
--- a/examples/sqlite/gen.sh
+++ b/examples/sqlite/gen.sh
@@ -2,6 +2,8 @@
 
 DBNAME=booktest.sqlite3
 
+EXTRA=$1
+
 SRC=$(realpath $(cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd ))
 
 DB=file:$SRC/$DBNAME
@@ -44,10 +46,9 @@ CREATE INDEX books_title_idx ON books(title, year);
 
 ENDSQL
 
+$XOBIN $DB -o $SRC/models $EXTRA
 
-$XOBIN $DB -v -o $SRC/models
-
-cat << ENDSQL | $XOBIN $DB -v -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models
+cat << ENDSQL | $XOBIN $DB -N -M -B -T AuthorBookResult --query-type-comment='AuthorBookResult is the result of a search.' -o $SRC/models $EXTRA
 SELECT
   a.author_id,
   a.name AS author_name,
@@ -57,14 +58,19 @@ SELECT
   b.tags AS book_tags
 FROM books b
 JOIN authors a ON a.author_id = b.author_id
-WHERE LIKE(b.tags, '%' || %%tag string%% || '%')
+WHERE b.tags LIKE '%' || %%tag string%% || '%'
 ENDSQL
 
 pushd $SRC &> /dev/null
 
 go build
-./sqlite
+./sqlite $EXTRA
 
 popd &> /dev/null
 
-sqlite3 $DB <<< 'select * from books;'
+sqlite3 $DB << ENDSQL
+.headers on
+.mode column
+.width 7 9 4 20 4 21 15
+select * from books;
+ENDSQL
diff --git a/examples/sqlite/models/authorbookresult.xo.go b/examples/sqlite/models/authorbookresult.xo.go
index da67be05..620e123b 100644
--- a/examples/sqlite/models/authorbookresult.xo.go
+++ b/examples/sqlite/models/authorbookresult.xo.go
@@ -27,7 +27,7 @@ func AuthorBookResultsByTag(db XODB, tag string) ([]*AuthorBookResult, error) {
 		`b.tags AS book_tags ` +
 		`FROM books b ` +
 		`JOIN authors a ON a.author_id = b.author_id ` +
-		`WHERE LIKE(b.tags, '%' || ? || '%')`
+		`WHERE b.tags LIKE '%' || ? || '%'`
 
 	// run query
 	XOLog(sqlstr, tag)
diff --git a/loaders/sqlite.go b/loaders/sqlite.go
index 98eb3f40..5b19cfd8 100644
--- a/loaders/sqlite.go
+++ b/loaders/sqlite.go
@@ -3,7 +3,6 @@ package loaders
 import (
 	"database/sql"
 	"errors"
-	"fmt"
 	"net/url"
 	"path"
 	"sort"
@@ -134,7 +133,6 @@ func SqLoadTableColumns(args *internal.ArgType, db *sql.DB, tableTpl *internal.T
 
 		// set col info
 		c.Field = snaker.SnakeToCamel(c.ColumnName)
-		fmt.Printf(">>> %s -- not null: %t // %t\n", sqC.ColumnName, sqC.NotNull, c.IsNullable)
 		c.Len, c.NilType, c.Type = SqParseType(args, c.DataType, c.IsNullable)
 
 		// set primary key