Limit search for NULL rows when adding a NOT NULL constraint

2024-03-05 16:08:19 +01:00
parent c3117568ad
commit 00f81cf62f
1 changed files with 1 additions and 1 deletions
@@ -440,7 +440,7 @@ class TableHandler(TableHandlerInterface):
                if self._columns[column_name]['notnull']:
                    return
                cursor.execute(SQL(
-                        'SELECT id FROM {} WHERE {} IS NULL').format(
+                        'SELECT id FROM {} WHERE {} IS NULL LIMIT 1').format(
                        Identifier(self.table_name),
                        Identifier(column_name)))
                if not cursor.rowcount: