mirror of
https://github.com/simtactics/niotso.git
synced 2025-03-23 11:22:20 +00:00
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* clauses.h
|
|
* prototypes for clauses.c.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/optimizer/clauses.h
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef CLAUSES_H
|
|
#define CLAUSES_H
|
|
|
|
#include "nodes/relation.h"
|
|
|
|
|
|
#define is_opclause(clause) ((clause) != NULL && IsA(clause, OpExpr))
|
|
#define is_funcclause(clause) ((clause) != NULL && IsA(clause, FuncExpr))
|
|
|
|
typedef struct
|
|
{
|
|
int numWindowFuncs; /* total number of WindowFuncs found */
|
|
Index maxWinRef; /* windowFuncs[] is indexed 0 .. maxWinRef */
|
|
List **windowFuncs; /* lists of WindowFuncs for each winref */
|
|
} WindowFuncLists;
|
|
|
|
|
|
extern Expr *make_opclause(Oid opno, Oid opresulttype, bool opretset,
|
|
Expr *leftop, Expr *rightop,
|
|
Oid opcollid, Oid inputcollid);
|
|
extern Node *get_leftop(Expr *clause);
|
|
extern Node *get_rightop(Expr *clause);
|
|
|
|
extern bool not_clause(Node *clause);
|
|
extern Expr *make_notclause(Expr *notclause);
|
|
extern Expr *get_notclausearg(Expr *notclause);
|
|
|
|
extern bool or_clause(Node *clause);
|
|
extern Expr *make_orclause(List *orclauses);
|
|
|
|
extern bool and_clause(Node *clause);
|
|
extern Expr *make_andclause(List *andclauses);
|
|
extern Node *make_and_qual(Node *qual1, Node *qual2);
|
|
extern Expr *make_ands_explicit(List *andclauses);
|
|
extern List *make_ands_implicit(Expr *clause);
|
|
|
|
extern bool contain_agg_clause(Node *clause);
|
|
extern void count_agg_clauses(PlannerInfo *root, Node *clause,
|
|
AggClauseCosts *costs);
|
|
|
|
extern bool contain_window_function(Node *clause);
|
|
extern WindowFuncLists *find_window_functions(Node *clause, Index maxWinRef);
|
|
|
|
extern double expression_returns_set_rows(Node *clause);
|
|
|
|
extern bool contain_subplans(Node *clause);
|
|
|
|
extern bool contain_mutable_functions(Node *clause);
|
|
extern bool contain_volatile_functions(Node *clause);
|
|
extern bool contain_nonstrict_functions(Node *clause);
|
|
extern Relids find_nonnullable_rels(Node *clause);
|
|
extern List *find_nonnullable_vars(Node *clause);
|
|
extern List *find_forced_null_vars(Node *clause);
|
|
extern Var *find_forced_null_var(Node *clause);
|
|
|
|
extern bool is_pseudo_constant_clause(Node *clause);
|
|
extern bool is_pseudo_constant_clause_relids(Node *clause, Relids relids);
|
|
|
|
extern int NumRelids(Node *clause);
|
|
|
|
extern void CommuteOpExpr(OpExpr *clause);
|
|
extern void CommuteRowCompareExpr(RowCompareExpr *clause);
|
|
|
|
extern Node *strip_implicit_coercions(Node *node);
|
|
|
|
extern void set_coercionform_dontcare(Node *node);
|
|
|
|
extern Node *eval_const_expressions(PlannerInfo *root, Node *node);
|
|
|
|
extern Node *estimate_expression_value(PlannerInfo *root, Node *node);
|
|
|
|
extern Query *inline_set_returning_function(PlannerInfo *root,
|
|
RangeTblEntry *rte);
|
|
|
|
#endif /* CLAUSES_H */
|