* prototypes for various files in optimizer/plan
*
*
- * Copyright (c) 1994, Regents of the University of California
+ * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: planmain.h,v 1.29 1999/07/15 15:21:22 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.108 2008/05/02 21:26:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "nodes/plannodes.h"
#include "nodes/relation.h"
+/* GUC parameters */
+#define DEFAULT_CURSOR_TUPLE_FRACTION 0.1
+extern double cursor_tuple_fraction;
+
/*
* prototypes for plan/planmain.c
*/
-extern Plan *query_planner(Query *root,
- int command_type, List *tlist, List *qual);
+extern void query_planner(PlannerInfo *root, List *tlist,
+ double tuple_fraction, double limit_tuples,
+ Path **cheapest_path, Path **sorted_path,
+ double *num_groups);
+/*
+ * prototypes for plan/planagg.c
+ */
+extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist,
+ Path *best_path);
/*
* prototypes for plan/createplan.c
*/
-extern Plan *create_plan(Path *best_path);
-extern SeqScan *make_seqscan(List *qptlist, List *qpqual, Index scanrelid,
- Plan *lefttree);
-extern Sort *make_sort(List *tlist, Oid nonameid, Plan *lefttree,
- int keycount);
-extern Agg *make_agg(List *tlist, Plan *lefttree);
-extern Group *make_group(List *tlist, bool tuplePerGroup, int ngrp,
- AttrNumber *grpColIdx, Sort *lefttree);
-extern Unique *make_unique(List *tlist, Plan *lefttree, char *uniqueAttr);
+extern Plan *create_plan(PlannerInfo *root, Path *best_path);
+extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
+ Index scanrelid, Plan *subplan, List *subrtable);
+extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
+extern Sort *make_sort_from_pathkeys(PlannerInfo *root, Plan *lefttree,
+ List *pathkeys, double limit_tuples);
+extern Sort *make_sort_from_sortclauses(PlannerInfo *root, List *sortcls,
+ Plan *lefttree);
+extern Sort *make_sort_from_groupcols(PlannerInfo *root, List *groupcls,
+ AttrNumber *grpColIdx, Plan *lefttree);
+extern Agg *make_agg(PlannerInfo *root, List *tlist, List *qual,
+ AggStrategy aggstrategy,
+ int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
+ long numGroups, int numAggs,
+ Plan *lefttree);
+extern Group *make_group(PlannerInfo *root, List *tlist, List *qual,
+ int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
+ double numGroups,
+ 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,
+ int64 offset_est, int64 count_est);
+extern SetOp *make_setop(SetOpCmd cmd, Plan *lefttree,
+ List *distinctList, AttrNumber flagColIdx);
+extern Result *make_result(PlannerInfo *root, List *tlist,
+ Node *resconstantqual, Plan *subplan);
+extern bool is_projection_capable_plan(Plan *plan);
/*
* prototypes for plan/initsplan.c
*/
-extern void make_var_only_tlist(Query *root, List *tlist);
-extern void add_restrict_and_join_to_rels(Query *root, List *clauses);
-extern void set_joininfo_mergeable_hashable(List *rel_list);
-extern void add_missing_vars_to_tlist(Query *root, List *tlist);
+extern int from_collapse_limit;
+extern int join_collapse_limit;
+
+extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode);
+extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist);
+extern void add_IN_vars_to_tlists(PlannerInfo *root);
+extern void add_vars_to_targetlist(PlannerInfo *root, List *vars,
+ Relids where_needed);
+extern List *deconstruct_jointree(PlannerInfo *root);
+extern void distribute_restrictinfo_to_rels(PlannerInfo *root,
+ RestrictInfo *restrictinfo);
+extern void process_implied_equality(PlannerInfo *root,
+ Oid opno,
+ Expr *item1,
+ Expr *item2,
+ Relids qualscope,
+ bool below_outer_join,
+ bool both_const);
+extern RestrictInfo *build_implied_join_equality(Oid opno,
+ Expr *item1,
+ Expr *item2,
+ Relids qualscope);
/*
* prototypes for plan/setrefs.c
*/
-extern void set_tlist_references(Plan *plan);
-extern List *join_references(List *clauses, List *outer_tlist,
- List *inner_tlist);
-extern List *index_outerjoin_references(List *inner_indxqual,
- List *outer_tlist, Index inner_relid);
-extern void replace_tlist_with_subplan_refs(List *tlist,
- Index subvarno,
- List *subplanTargetList);
-extern bool set_agg_tlist_references(Agg *aggNode);
-extern void check_having_for_ungrouped_vars(Node *clause,
- List *groupClause,
- List *targetList);
-extern void transformKeySetQuery(Query *origNode);
+extern Plan *set_plan_references(PlannerGlobal *glob,
+ Plan *plan,
+ List *rtable);
+extern List *set_returning_clause_references(PlannerGlobal *glob,
+ List *rlist,
+ Plan *topplan,
+ Index resultRelation);
+extern void fix_opfuncids(Node *node);
+extern void set_opfuncid(OpExpr *opexpr);
+extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr);
-#endif /* PLANMAIN_H */
+#endif /* PLANMAIN_H */
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