mirror of
https://github.com/postgres/postgres.git
synced 2026-02-12 15:23:16 -05:00
595ed2a855
Formerly, if such a clause contained no aggregate functions we mistakenly treated it as equivalent to WHERE. Per spec it must cause the query to be treated as a grouped query of a single group, the same as appearance of aggregate functions would do. Also, the HAVING filter must execute after aggregate function computation even if it itself contains no aggregate functions.
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* planmain.h
|
|
* prototypes for various files in optimizer/plan
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.80 2005/03/10 23:21:25 tgl Exp $
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PLANMAIN_H
|
|
#define PLANMAIN_H
|
|
|
|
#include "nodes/plannodes.h"
|
|
#include "nodes/relation.h"
|
|
|
|
/*
|
|
* prototypes for plan/planmain.c
|
|
*/
|
|
extern void query_planner(Query *root, List *tlist, double tuple_fraction,
|
|
Path **cheapest_path, Path **sorted_path);
|
|
|
|
/*
|
|
* prototypes for plan/createplan.c
|
|
*/
|
|
extern Plan *create_plan(Query *root, Path *best_path);
|
|
extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
|
|
Index scanrelid, Plan *subplan);
|
|
extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
|
|
extern Sort *make_sort_from_sortclauses(Query *root, List *sortcls,
|
|
Plan *lefttree);
|
|
extern Sort *make_sort_from_groupcols(Query *root, List *groupcls,
|
|
AttrNumber *grpColIdx, Plan *lefttree);
|
|
extern Agg *make_agg(Query *root, List *tlist, List *qual,
|
|
AggStrategy aggstrategy,
|
|
int numGroupCols, AttrNumber *grpColIdx,
|
|
long numGroups, int numAggs,
|
|
Plan *lefttree);
|
|
extern Group *make_group(Query *root, List *tlist, List *qual,
|
|
int numGroupCols, AttrNumber *grpColIdx,
|
|
double numGroups,
|
|
Plan *lefttree);
|
|
extern Material *make_material(Plan *lefttree);
|
|
extern Plan *materialize_finished_plan(Plan *subplan);
|
|
extern Unique *make_unique(Plan *lefttree, List *distinctList);
|
|
extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount);
|
|
extern SetOp *make_setop(SetOpCmd cmd, Plan *lefttree,
|
|
List *distinctList, AttrNumber flagColIdx);
|
|
extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan);
|
|
extern bool is_projection_capable_plan(Plan *plan);
|
|
|
|
/*
|
|
* prototypes for plan/initsplan.c
|
|
*/
|
|
extern void add_base_rels_to_query(Query *root, Node *jtnode);
|
|
extern void build_base_rel_tlists(Query *root, List *final_tlist);
|
|
extern Relids distribute_quals_to_rels(Query *root, Node *jtnode);
|
|
extern void process_implied_equality(Query *root,
|
|
Node *item1, Node *item2,
|
|
Oid sortop1, Oid sortop2,
|
|
Relids item1_relids, Relids item2_relids,
|
|
bool delete_it);
|
|
|
|
/*
|
|
* prototypes for plan/setrefs.c
|
|
*/
|
|
extern void set_plan_references(Plan *plan, List *rtable);
|
|
extern void fix_opfuncids(Node *node);
|
|
extern void set_opfuncid(OpExpr *opexpr);
|
|
|
|
#endif /* PLANMAIN_H */
|