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/*-------------------------------------------------------------------------
*
* nodeHash.h--
*
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeHash.h,v 1.4 1997/09/08 02:36:23 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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