?? keys.h
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/*------------------------------------------------------------------------- * * 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 */?? 快捷鍵說明
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