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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-06-11 00:17:08 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-06-11 00:17:08 +0000 |
| commit | 01a819abe36212381477218e1b316918c44ae414 (patch) | |
| tree | 48e2c4dcffb1d67657b8127d85b93e023d2f7378 /src/include/executor/nodeHash.h | |
| parent | ccda1a672cce8c8cf36051dc02260923233534fa (diff) | |
| download | postgresql-01a819abe36212381477218e1b316918c44ae414.tar.gz postgresql-01a819abe36212381477218e1b316918c44ae414.zip | |
Make planner compute the number of hash buckets the same way that
nodeHash.c will compute it (by sharing code).
Diffstat (limited to 'src/include/executor/nodeHash.h')
| -rw-r--r-- | src/include/executor/nodeHash.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/include/executor/nodeHash.h b/src/include/executor/nodeHash.h index e00bdfbc355..512edec6d18 100644 --- a/src/include/executor/nodeHash.h +++ b/src/include/executor/nodeHash.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: nodeHash.h,v 1.19 2001/03/22 04:00:44 momjian Exp $ + * $Id: nodeHash.h,v 1.20 2001/06/11 00:17:07 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -16,9 +16,6 @@ #include "nodes/plannodes.h" -/* NTUP_PER_BUCKET is exported because planner wants to see it */ -#define NTUP_PER_BUCKET 10 - extern TupleTableSlot *ExecHash(Hash *node); extern bool ExecInitHash(Hash *node, EState *estate, Plan *parent); extern int ExecCountSlotsHash(Hash *node); @@ -35,5 +32,9 @@ extern HeapTuple ExecScanHashBucket(HashJoinState *hjstate, List *hjclauses, ExprContext *econtext); extern void ExecHashTableReset(HashJoinTable hashtable, long ntuples); extern void ExecReScanHash(Hash *node, ExprContext *exprCtxt, Plan *parent); +extern void ExecChooseHashTableSize(double ntuples, int tupwidth, + int *virtualbuckets, + int *physicalbuckets, + int *numbatches); #endif /* NODEHASH_H */ |