Adjust sql order

pkg/utils/db.go

@@ -525,7 +525,7 @@ func AddGSetWithPurged(ctx context.Context, gset gtid.Set, conn *sql.Conn) (gtid
 	return ret, nil
 }
 
-// AdjustSQLModeCompatible adjust downstream sql mode to compatible
+// AdjustSQLModeCompatible adjust downstream sql mode to compatible.
 func AdjustSQLModeCompatible(sqlModes string) (string, error) {
 	needDisable := []string{
 		"NO_ZERO_IN_DATE",
@@ -562,7 +562,7 @@ func AdjustSQLModeCompatible(sqlModes string) (string, error) {
 	return GetSQLModeStrBySQLMode(mode), nil
 }
 
-// GetSQLModeStrBySQLMode get string represent of sql_mode by sql_mode
+// GetSQLModeStrBySQLMode get string represent of sql_mode by sql_mode.
 func GetSQLModeStrBySQLMode(sqlMode tmysql.SQLMode) string {
 	var sqlModeStr []string
 	for str, SQLMode := range tmysql.Str2SQLMode {

tests/sql_mode/data/db2.increment.sql

@@ -1,19 +1,23 @@
-set @@session.SQL_MODE='PIPES_AS_CONCAT,IGNORE_SPACE,ONLY_FULL_GROUP_BY,NO_UNSIGNED_SUBTRACTION,NO_DIR_IN_CREATE,NO_AUTO_VALUE_ON_ZERO,NO_BACKSLASH_ESCAPES,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ALLOW_INVALID_DATES,ERROR_FOR_DIVISION_BY_ZERO,HIGH_NOT_PRECEDENCE,NO_ENGINE_SUBSTITUTION,REAL_AS_FLOAT';
+set @@session.sql_mode='ONLY_FULL_GROUP_BY,NO_UNSIGNED_SUBTRACTION,NO_DIR_IN_CREATE,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ALLOW_INVALID_DATES,ERROR_FOR_DIVISION_BY_ZERO,HIGH_NOT_PRECEDENCE,NO_ENGINE_SUBSTITUTION,REAL_AS_FLOAT';
 -- NO_AUTO_CREATE_USER set failed in mysql8.0
 use sql_mode;
 
 -- test sql_mode PIPES_AS_CONCAT
+set @@session.sql_mode=concat(@@session.sql_mode, ',PIPES_AS_CONCAT');
 insert into t_2(name) values('pipes'||'as'||'concat');
 
 -- test sql_mode ANSI_QUOTES
 insert into t_2(name) values("a");
 
 -- test sql_mode IGNORE_SPACE
+set @@session.sql_mode=concat(@@session.sql_mode, ',IGNORE_SPACE');
 select count (*) as c from t_2;
 
 -- test sql_mode NO_AUTO_VALUE_ON_ZERO
+set @@session.sql_mode=concat(@@session.sql_mode, ',NO_AUTO_VALUE_ON_ZERO');
 insert into t_2(id, name) values (10, 'a');
 insert into t_2(id, name) values (0, 'b');
 
 -- test sql_mode NO_BACKSLASH_ESCAPES
+set @@session.sql_mode=concat(@@session.sql_mode, ',NO_BACKSLASH_ESCAPES');
 insert into t_2(name) values ('\\a');