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/*-------------------------------------------------------------------------
*
* planmain.h
* prototypes for various files in optimizer/plan
*
*
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.78 2004/08/29 04:13:08 momjian 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,
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 */
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