docs: add comment

googleapis · Jun 21, 2021 · c1f6823 · c1f6823
1 parent 91217ce
commit c1f6823
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/google/cloud/spanner_dbapi/cursor.py b/google/cloud/spanner_dbapi/cursor.py
@@ -181,6 +181,7 @@ def execute(self, sql, args=None):
                         if parse_utils.classify_stmt(ddl) != parse_utils.STMT_DDL:
                             raise ValueError("Only DDL statements may be batched.")
                         ddl_statements.append(ddl)
+                # Only queue DDL statements if they are all correctly classified.
                 self.connection._ddl_statements.extend(ddl_statements)
                 if self.connection.autocommit:
                     self.connection.run_prior_DDL_statements()