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/*-------------------------------------------------------------------------
*
* nodeHash.h--
*
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeHash.h,v 1.2 1997/08/19 21:38:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODEHASH_H
#define NODEHASH_H
extern TupleTableSlot *ExecHash(Hash *node);
extern bool ExecInitHash(Hash *node, EState *estate, Plan *parent);
extern int ExecCountSlotsHash(Hash *node);
extern void ExecEndHash(Hash *node);
extern HashJoinTable ExecHashTableCreate(Hash *node);
extern void ExecHashTableInsert(HashJoinTable hashtable, ExprContext *econtext,
Var *hashkey, File *batches);
extern void ExecHashTableDestroy(HashJoinTable hashtable);
extern int ExecHashGetBucket(HashJoinTable hashtable, ExprContext *econtext,
Var *hashkey);
extern HeapTuple ExecScanHashBucket(HashJoinState *hjstate, HashBucket bucket,
HeapTuple curtuple, List *hjclauses,
ExprContext *econtext);
extern void ExecHashTableReset(HashJoinTable hashtable, int ntuples);
#endif /* NODEHASH_H */
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