[FEAT MERGE] 4.3 optimizer enhancement

Co-authored-by: akaError <lzg020616@163.com>
2024-02-07 23:05:57 +00:00
parent 8d63652331
commit fd359dc4a4
50 changed files with 3205 additions and 1059 deletions
--- a/src/sql/optimizer/ob_opt_est_cost_model.h
+++ b/src/sql/optimizer/ob_opt_est_cost_model.h
@ -804,6 +804,10 @@ protected:
 											const ObIArray<ObRawExpr *> &order_exprs,
 											const ObIArray<ObExprResType> &order_col_types,
 											double &cost);
+  int cost_part_topn_sort(const ObSortCostInfo &cost_info,
+                          const ObIArray<ObRawExpr *> &order_exprs,
+                          const ObIArray<ObExprResType> &order_col_types,
+                          double &cost);

  int cost_prefix_sort(const ObSortCostInfo &cost_info,
 											const ObIArray<ObRawExpr *> &order_exprs,