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6bdfde9a77
check instead of hardwiring assumptions that only certain plan node types can appear at the places where we are testing. This was always a pretty fragile assumption, and it turns out to be broken in 7.4 for certain cases involving IN-subselect tests that need type coercion. Also, modify code that builds finished Plan tree so that node types that don't do projection always copy their input node's targetlist, rather than having the tlist passed in from the caller. The old method makes it too easy to write broken code that thinks it can modify the tlist when it cannot.
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* planmain.h
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* prototypes for various files in optimizer/plan
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*
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*
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* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.77 2004/01/18 00:50:03 tgl Exp $
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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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#include "nodes/plannodes.h"
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#include "nodes/relation.h"
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/*
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* prototypes for plan/planmain.c
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*/
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extern void query_planner(Query *root, List *tlist, double tuple_fraction,
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Path **cheapest_path, Path **sorted_path);
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/*
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* prototypes for plan/createplan.c
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*/
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extern Plan *create_plan(Query *root, Path *best_path);
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extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
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Index scanrelid, Plan *subplan);
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extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
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extern Sort *make_sort_from_sortclauses(Query *root, List *sortcls,
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Plan *lefttree);
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extern Sort *make_sort_from_groupcols(Query *root, List *groupcls,
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AttrNumber *grpColIdx, Plan *lefttree);
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extern Agg *make_agg(Query *root, List *tlist, List *qual,
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AggStrategy aggstrategy,
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int numGroupCols, AttrNumber *grpColIdx,
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long numGroups, int numAggs,
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Plan *lefttree);
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extern Group *make_group(Query *root, List *tlist,
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int numGroupCols, AttrNumber *grpColIdx,
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double numGroups,
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Plan *lefttree);
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extern Material *make_material(Plan *lefttree);
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extern Plan *materialize_finished_plan(Plan *subplan);
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extern Unique *make_unique(Plan *lefttree, List *distinctList);
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extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount);
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extern SetOp *make_setop(SetOpCmd cmd, Plan *lefttree,
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List *distinctList, AttrNumber flagColIdx);
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extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan);
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extern bool is_projection_capable_plan(Plan *plan);
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/*
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* prototypes for plan/initsplan.c
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*/
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extern void add_base_rels_to_query(Query *root, Node *jtnode);
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extern void build_base_rel_tlists(Query *root, List *final_tlist);
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extern Relids distribute_quals_to_rels(Query *root, Node *jtnode);
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extern void process_implied_equality(Query *root,
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Node *item1, Node *item2,
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Oid sortop1, Oid sortop2,
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Relids item1_relids, Relids item2_relids,
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bool delete_it);
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/*
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* prototypes for plan/setrefs.c
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*/
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extern void set_plan_references(Plan *plan, List *rtable);
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extern void fix_opfuncids(Node *node);
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extern void set_opfuncid(OpExpr *opexpr);
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#endif /* PLANMAIN_H */
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