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/*-------------------------------------------------------------------------
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*
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* nodeHash.h--
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*
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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: nodeHash.h,v 1.3 1997/09/07 04:57:52 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEHASH_H
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#define NODEHASH_H
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extern TupleTableSlot *ExecHash(Hash * node);
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extern bool ExecInitHash(Hash * node, EState * estate, Plan * parent);
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extern int ExecCountSlotsHash(Hash * node);
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extern void ExecEndHash(Hash * node);
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extern HashJoinTable ExecHashTableCreate(Hash * node);
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extern void
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ExecHashTableInsert(HashJoinTable hashtable, ExprContext * econtext,
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Var * hashkey, File * batches);
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extern void ExecHashTableDestroy(HashJoinTable hashtable);
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extern int
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ExecHashGetBucket(HashJoinTable hashtable, ExprContext * econtext,
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Var * hashkey);
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extern HeapTuple
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ExecScanHashBucket(HashJoinState * hjstate, HashBucket bucket,
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HeapTuple curtuple, List * hjclauses,
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ExprContext * econtext);
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extern void ExecHashTableReset(HashJoinTable hashtable, int ntuples);
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#endif /* NODEHASH_H */
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