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fa2cf164aa
The old name of this file was never a very good indication of what it was for. Now that there's also access/relation.h, we have a potential confusion hazard as well, so let's rename it to something more apropos. Per discussion, "pathnodes.h" is reasonable, since a good fraction of the file is Path node definitions. While at it, tweak a couple of other headers that were gratuitously importing relation.h into modules that don't need it. Discussion: https://postgr.es/m/7719.1548688728@sss.pgh.pa.us
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* clauses.h
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* prototypes for clauses.c.
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*
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*
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* Portions Copyright (c) 1996-2019, 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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* src/include/optimizer/clauses.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef CLAUSES_H
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#define CLAUSES_H
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#include "access/htup.h"
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#include "nodes/pathnodes.h"
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typedef struct
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{
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int numWindowFuncs; /* total number of WindowFuncs found */
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Index maxWinRef; /* windowFuncs[] is indexed 0 .. maxWinRef */
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List **windowFuncs; /* lists of WindowFuncs for each winref */
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} WindowFuncLists;
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extern bool contain_agg_clause(Node *clause);
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extern void get_agg_clause_costs(PlannerInfo *root, Node *clause,
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AggSplit aggsplit, AggClauseCosts *costs);
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extern bool contain_window_function(Node *clause);
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extern WindowFuncLists *find_window_functions(Node *clause, Index maxWinRef);
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extern double expression_returns_set_rows(Node *clause);
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extern bool contain_subplans(Node *clause);
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extern char max_parallel_hazard(Query *parse);
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extern bool is_parallel_safe(PlannerInfo *root, Node *node);
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extern bool contain_nonstrict_functions(Node *clause);
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extern bool contain_leaked_vars(Node *clause);
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extern Relids find_nonnullable_rels(Node *clause);
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extern List *find_nonnullable_vars(Node *clause);
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extern List *find_forced_null_vars(Node *clause);
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extern Var *find_forced_null_var(Node *clause);
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extern bool is_pseudo_constant_clause(Node *clause);
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extern bool is_pseudo_constant_clause_relids(Node *clause, Relids relids);
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extern int NumRelids(Node *clause);
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extern void CommuteOpExpr(OpExpr *clause);
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extern void CommuteRowCompareExpr(RowCompareExpr *clause);
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extern Query *inline_set_returning_function(PlannerInfo *root,
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RangeTblEntry *rte);
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#endif /* CLAUSES_H */
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