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/*-------------------------------------------------------------------------
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*
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* keys.h--
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* prototypes for keys.c.
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: keys.h,v 1.7 1998/07/18 04:22:51 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef KEYS_H
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#define KEYS_H
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#include "nodes/nodes.h"
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#include "nodes/relation.h"
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extern bool match_indexkey_operand(int indexkey, Var *operand, RelOptInfo *rel);
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extern Var *extract_subkey(JoinKey *jk, int which_subkey);
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extern bool samekeys(List *keys1, List *keys2);
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extern List *collect_index_pathkeys(int *index_keys, List *tlist);
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#endif /* KEYS_H */
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