1 /*-------------------------------------------------------------------------
2  *
3  * joininfo.h
4  *	  prototypes for joininfo.c.
5  *
6  *
7  * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/include/optimizer/joininfo.h
11  *
12  *-------------------------------------------------------------------------
13  */
14 #ifndef JOININFO_H
15 #define JOININFO_H
16 
17 #include "nodes/pathnodes.h"
18 
19 
20 extern bool have_relevant_joinclause(PlannerInfo *root,
21 									 RelOptInfo *rel1, RelOptInfo *rel2);
22 
23 extern void add_join_clause_to_rels(PlannerInfo *root,
24 									RestrictInfo *restrictinfo,
25 									Relids join_relids);
26 extern void remove_join_clause_from_rels(PlannerInfo *root,
27 										 RestrictInfo *restrictinfo,
28 										 Relids join_relids);
29 
30 #endif							/* JOININFO_H */
31