keys.h
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:1k
- /*-------------------------------------------------------------------------
- *
- * keys.h
- * prototypes for keys.c.
- *
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * $Id: keys.h,v 1.15 1999/05/25 22:43:09 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
- #ifndef KEYS_H
- #define KEYS_H
- #include "nodes/nodes.h"
- #include "nodes/relation.h"
- extern bool match_indexkey_operand(int indexkey, Var *operand, RelOptInfo *rel);
- extern Var *extract_join_key(JoinKey *jk, int outer_or_inner);
- extern bool pathkeys_match(List *keys1, List *keys2, int *better_key);
- extern List *collect_index_pathkeys(int *index_keys, List *tlist);
- #endif /* KEYS_H */