greenplumn restrictinfo 源码
greenplumn restrictinfo 代码
文件路径：/src/include/optimizer/restrictinfo.h
/*-------------------------------------------------------------------------
*
* restrictinfo.h
* prototypes for restrictinfo.c.
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/optimizer/restrictinfo.h
*
*-------------------------------------------------------------------------
*/
#ifndef RESTRICTINFO_H
#define RESTRICTINFO_H
#include "nodes/pathnodes.h"
/* Convenience macro for the common case of a valid-everywhere qual */
#define make_simple_restrictinfo(clause) \
make_restrictinfo(clause, true, false, false, 0, NULL, NULL, NULL)
extern RestrictInfo *make_restrictinfo(Expr *clause,
bool is_pushed_down,
bool outerjoin_delayed,
bool pseudoconstant,
Index security_level,
Relids required_relids,
Relids outer_relids,
Relids nullable_relids);
extern RestrictInfo *commute_restrictinfo(RestrictInfo *rinfo, Oid comm_op);
extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
extern bool restriction_is_securely_promotable(RestrictInfo *restrictinfo,
RelOptInfo *rel);
extern List *get_actual_clauses(List *restrictinfo_list);
extern List *extract_actual_clauses(List *restrictinfo_list,
bool pseudoconstant);
extern void extract_actual_join_clauses(List *restrictinfo_list,
Relids joinrelids,
List **joinquals,
List **otherquals);
extern bool join_clause_is_movable_to(RestrictInfo *rinfo, RelOptInfo *baserel);
extern bool join_clause_is_movable_into(RestrictInfo *rinfo,
Relids currentrelids,
Relids current_and_outer);
#endif /* RESTRICTINFO_H */
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