mirror of
https://github.com/postgres/postgres.git
synced 2026-02-16 17:19:08 -05:00
12933dc604
This reverts commit7204f35919, thus restoring66c0185a3(Allow planner to use Merge Append to efficiently implement UNION) as well as the follow-on commitsd5d2205c8,3b1a7eb28,7487044d6. Per further discussion on pgsql-release, we wish to ship beta1 with this feature, and patch the bug that was found just before wrap, rather than shipping beta1 with the feature reverted.
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* prep.h
|
|
* prototypes for files in optimizer/prep/
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/optimizer/prep.h
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PREP_H
|
|
#define PREP_H
|
|
|
|
#include "nodes/pathnodes.h"
|
|
#include "nodes/plannodes.h"
|
|
|
|
|
|
/*
|
|
* prototypes for prepjointree.c
|
|
*/
|
|
extern void transform_MERGE_to_join(Query *parse);
|
|
extern void replace_empty_jointree(Query *parse);
|
|
extern void pull_up_sublinks(PlannerInfo *root);
|
|
extern void preprocess_function_rtes(PlannerInfo *root);
|
|
extern void pull_up_subqueries(PlannerInfo *root);
|
|
extern void flatten_simple_union_all(PlannerInfo *root);
|
|
extern void reduce_outer_joins(PlannerInfo *root);
|
|
extern void remove_useless_result_rtes(PlannerInfo *root);
|
|
extern Relids get_relids_in_jointree(Node *jtnode, bool include_outer_joins,
|
|
bool include_inner_joins);
|
|
extern Relids get_relids_for_join(Query *query, int joinrelid);
|
|
|
|
/*
|
|
* prototypes for preptlist.c
|
|
*/
|
|
extern void preprocess_targetlist(PlannerInfo *root);
|
|
|
|
extern List *extract_update_targetlist_colnos(List *tlist);
|
|
|
|
extern PlanRowMark *get_plan_rowmark(List *rowmarks, Index rtindex);
|
|
|
|
/*
|
|
* prototypes for prepagg.c
|
|
*/
|
|
extern void get_agg_clause_costs(PlannerInfo *root, AggSplit aggsplit,
|
|
AggClauseCosts *costs);
|
|
extern void preprocess_aggrefs(PlannerInfo *root, Node *clause);
|
|
|
|
/*
|
|
* prototypes for prepunion.c
|
|
*/
|
|
extern RelOptInfo *plan_set_operations(PlannerInfo *root);
|
|
extern bool set_operation_ordered_results_useful(SetOperationStmt *setop);
|
|
|
|
#endif /* PREP_H */
|