add limit to solve slow compute_fd_item

2023-09-20 15:01:11 +00:00
parent 9e7c29c68b
commit 8b4f1665de
7 changed files with 56 additions and 34 deletions
--- a/src/sql/rewrite/ob_transform_utils.cpp
+++ b/src/sql/rewrite/ob_transform_utils.cpp
@ -4676,6 +4676,14 @@ int ObTransformUtils::compute_basic_table_property(const ObDMLStmt *stmt,
  return ret;
 }

+int ObTransformUtils::need_compute_fd_item_set(ObIArray<ObRawExpr*> &exprs)
+{
+  bool need = true;
+  if (exprs.count() > 128) {
+    need = false;
+  }
+  return need;
+}
 //extract rowid in select_exprs
 //add table fd for related table.
 int ObTransformUtils::try_add_table_fd_for_rowid(const ObSelectStmt *stmt,