1996-07-09 08:22:35 +02:00
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/*-------------------------------------------------------------------------
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*
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1999-02-14 00:22:53 +01:00
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* planmain.h
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1997-09-07 07:04:48 +02:00
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* prototypes for various files in optimizer/plan
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1996-07-09 08:22:35 +02:00
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*
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*
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2008-01-01 20:46:01 +01:00
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* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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2000-01-26 06:58:53 +01:00
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* Portions Copyright (c) 1994, Regents of the University of California
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1996-07-09 08:22:35 +02:00
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*
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2008-09-09 20:58:09 +02:00
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* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.112 2008/09/09 18:58:09 tgl Exp $
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1996-07-09 08:22:35 +02:00
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PLANMAIN_H
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#define PLANMAIN_H
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1997-11-26 02:14:33 +01:00
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#include "nodes/plannodes.h"
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#include "nodes/relation.h"
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1996-07-09 08:22:35 +02:00
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2008-05-02 23:26:10 +02:00
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/* GUC parameters */
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#define DEFAULT_CURSOR_TUPLE_FRACTION 0.1
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extern double cursor_tuple_fraction;
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1996-07-09 08:22:35 +02:00
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/*
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* prototypes for plan/planmain.c
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*/
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2005-06-06 00:32:58 +02:00
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extern void query_planner(PlannerInfo *root, List *tlist,
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2007-05-04 03:13:45 +02:00
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double tuple_fraction, double limit_tuples,
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2005-10-15 04:49:52 +02:00
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Path **cheapest_path, Path **sorted_path,
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double *num_groups);
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1996-07-09 08:22:35 +02:00
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2005-04-12 01:06:57 +02:00
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/*
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* prototypes for plan/planagg.c
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*/
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2005-06-06 00:32:58 +02:00
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extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist,
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2005-10-15 04:49:52 +02:00
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Path *best_path);
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2005-04-12 01:06:57 +02:00
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1996-07-09 08:22:35 +02:00
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/*
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* prototypes for plan/createplan.c
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*/
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2005-06-06 00:32:58 +02:00
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extern Plan *create_plan(PlannerInfo *root, Path *best_path);
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2000-10-05 21:11:39 +02:00
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extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
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2007-02-22 23:00:26 +01:00
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Index scanrelid, Plan *subplan, List *subrtable);
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2000-11-12 01:37:02 +01:00
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extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
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2007-01-20 21:45:41 +01:00
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extern Sort *make_sort_from_pathkeys(PlannerInfo *root, Plan *lefttree,
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2007-05-04 03:13:45 +02:00
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List *pathkeys, double limit_tuples);
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2005-06-06 00:32:58 +02:00
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extern Sort *make_sort_from_sortclauses(PlannerInfo *root, List *sortcls,
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2004-01-18 01:50:03 +01:00
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Plan *lefttree);
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2005-06-06 00:32:58 +02:00
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extern Sort *make_sort_from_groupcols(PlannerInfo *root, List *groupcls,
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2003-08-04 02:43:34 +02:00
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AttrNumber *grpColIdx, Plan *lefttree);
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2005-06-06 00:32:58 +02:00
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extern Agg *make_agg(PlannerInfo *root, List *tlist, List *qual,
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2003-08-04 02:43:34 +02:00
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AggStrategy aggstrategy,
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2007-01-10 19:06:05 +01:00
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int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
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2003-08-04 02:43:34 +02:00
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long numGroups, int numAggs,
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Plan *lefttree);
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2005-06-06 00:32:58 +02:00
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extern Group *make_group(PlannerInfo *root, List *tlist, List *qual,
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2007-01-10 19:06:05 +01:00
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int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
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2003-08-04 02:43:34 +02:00
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double numGroups,
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Plan *lefttree);
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2003-03-10 04:53:52 +01:00
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extern Plan *materialize_finished_plan(Plan *subplan);
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2004-01-18 01:50:03 +01:00
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extern Unique *make_unique(Plan *lefttree, List *distinctList);
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2005-08-18 19:51:12 +02:00
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extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount,
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2006-07-26 02:34:48 +02:00
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int64 offset_est, int64 count_est);
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2008-08-07 05:04:04 +02:00
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extern SetOp *make_setop(SetOpCmd cmd, SetOpStrategy strategy, Plan *lefttree,
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2008-08-07 21:35:02 +02:00
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List *distinctList, AttrNumber flagColIdx, int firstFlag,
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long numGroups, double outputRows);
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2007-02-22 23:00:26 +01:00
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extern Result *make_result(PlannerInfo *root, List *tlist,
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2007-11-15 22:14:46 +01:00
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Node *resconstantqual, Plan *subplan);
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2004-01-18 01:50:03 +01:00
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extern bool is_projection_capable_plan(Plan *plan);
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1996-07-09 08:22:35 +02:00
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/*
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* prototypes for plan/initsplan.c
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*/
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2005-12-20 03:30:36 +01:00
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extern int from_collapse_limit;
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extern int join_collapse_limit;
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2005-06-06 00:32:58 +02:00
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extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode);
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extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist);
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2007-01-20 21:45:41 +01:00
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extern void add_vars_to_targetlist(PlannerInfo *root, List *vars,
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2007-11-15 22:14:46 +01:00
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Relids where_needed);
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2005-12-20 03:30:36 +01:00
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extern List *deconstruct_jointree(PlannerInfo *root);
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2007-01-20 21:45:41 +01:00
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extern void distribute_restrictinfo_to_rels(PlannerInfo *root,
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2007-11-15 22:14:46 +01:00
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RestrictInfo *restrictinfo);
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2005-06-06 00:32:58 +02:00
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extern void process_implied_equality(PlannerInfo *root,
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2007-11-15 22:14:46 +01:00
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Oid opno,
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Expr *item1,
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Expr *item2,
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Relids qualscope,
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bool below_outer_join,
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bool both_const);
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2007-01-20 21:45:41 +01:00
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extern RestrictInfo *build_implied_join_equality(Oid opno,
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Expr *item1,
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Expr *item2,
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Relids qualscope);
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1996-07-09 08:22:35 +02:00
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/*
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* prototypes for plan/setrefs.c
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*/
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2007-11-15 23:25:18 +01:00
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extern Plan *set_plan_references(PlannerGlobal *glob,
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2007-11-15 22:14:46 +01:00
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Plan *plan,
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List *rtable);
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2007-11-15 23:25:18 +01:00
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extern List *set_returning_clause_references(PlannerGlobal *glob,
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2007-10-11 20:05:27 +02:00
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List *rlist,
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2006-08-12 04:52:06 +02:00
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Plan *topplan,
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Index resultRelation);
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2002-12-12 16:49:42 +01:00
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extern void fix_opfuncids(Node *node);
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2003-08-08 23:42:59 +02:00
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extern void set_opfuncid(OpExpr *opexpr);
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2007-01-22 02:35:23 +01:00
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extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr);
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2008-09-09 20:58:09 +02:00
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extern void record_plan_function_dependency(PlannerGlobal *glob, Oid funcid);
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extern void extract_query_dependencies(List *queries,
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List **relationOids,
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List **invalItems);
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1999-08-21 05:49:17 +02:00
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2001-11-05 18:46:40 +01:00
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#endif /* PLANMAIN_H */
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