Execer/Queryer should use transaction

sqlite3.go

@@ -136,20 +136,27 @@ func (c *SQLiteConn) AutoCommit() bool {
 
 // Implements Execer
 func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, error) {
+	tx, err := c.Begin()
+	if err != nil {
+		return nil, err
+	}
 	for {
 		s, err := c.Prepare(query)
 		if err != nil {
+			tx.Rollback()
 			return nil, err
 		}
 		na := s.NumInput()
 		res, err := s.Exec(args[:na])
 		if err != nil && err != driver.ErrSkip {
+			tx.Rollback()
 			s.Close()
 			return nil, err
 		}
 		args = args[na:]
 		tail := s.(*SQLiteStmt).t
 		if tail == "" {
+			tx.Commit()
 			return res, nil
 		}
 		s.Close()
@@ -159,20 +166,27 @@ func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, err
 
 // Implements Queryer
 func (c *SQLiteConn) Query(query string, args []driver.Value) (driver.Rows, error) {
+	tx, err := c.Begin()
+	if err != nil {
+		return nil, err
+	}
 	for {
 		s, err := c.Prepare(query)
 		if err != nil {
+			tx.Rollback()
 			return nil, err
 		}
 		na := s.NumInput()
 		rows, err := s.Query(args[:na])
 		if err != nil && err != driver.ErrSkip {
+			tx.Rollback()
 			s.Close()
 			return nil, err
 		}
 		args = args[na:]
 		tail := s.(*SQLiteStmt).t
 		if tail == "" {
+			tx.Commit()
 			return rows, nil
 		}
 		s.Close()