1996-07-09 08:22:35 +02:00
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/*-------------------------------------------------------------------------
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*
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1999-02-14 00:22:53 +01:00
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* nodeHash.h
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1997-09-07 07:04:48 +02:00
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*
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1996-07-09 08:22:35 +02:00
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*
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*
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2000-01-26 06:58:53 +01:00
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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1996-07-09 08:22:35 +02:00
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*
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2000-01-26 06:58:53 +01:00
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* $Id: nodeHash.h,v 1.15 2000/01/26 05:58:05 momjian Exp $
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1996-07-09 08:22:35 +02:00
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*
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*-------------------------------------------------------------------------
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*/
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1997-09-07 07:04:48 +02:00
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#ifndef NODEHASH_H
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#define NODEHASH_H
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1996-07-09 08:22:35 +02:00
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1997-11-26 02:26:13 +01:00
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#include "nodes/plannodes.h"
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1998-02-26 05:46:47 +01:00
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1997-09-08 23:56:23 +02:00
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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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1997-09-08 04:41:22 +02:00
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extern void ExecHashTableDestroy(HashJoinTable hashtable);
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1999-05-18 23:33:06 +02:00
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extern void ExecHashTableInsert(HashJoinTable hashtable, ExprContext *econtext,
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1999-05-25 18:15:34 +02:00
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Var *hashkey);
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1998-09-01 06:40:42 +02:00
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extern int ExecHashGetBucket(HashJoinTable hashtable, ExprContext *econtext,
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1999-05-25 18:15:34 +02:00
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Var *hashkey);
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1999-05-18 23:33:06 +02:00
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extern HeapTuple ExecScanHashBucket(HashJoinState *hjstate, List *hjclauses,
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1999-05-25 18:15:34 +02:00
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ExprContext *econtext);
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1999-05-18 23:33:06 +02:00
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extern void ExecHashTableReset(HashJoinTable hashtable, long ntuples);
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1998-02-13 04:46:56 +01:00
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extern void ExecReScanHash(Hash *node, ExprContext *exprCtxt, Plan *parent);
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1996-07-09 08:22:35 +02:00
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1998-09-01 06:40:42 +02:00
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#endif /* NODEHASH_H */
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