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Install some slightly realistic cost estimation for bitmap index scans.

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This commit is contained in:
Tom Lane
2005-04-21 02:28:02 +00:00
parent 2f8c7c866c
commit e6f7edb9d5
8 changed files with 195 additions and 31 deletions
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4
src/backend/nodes/outfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.247 2005/04/19 22:35:14 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.248 2005/04/21 02:28:01 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@ -1024,6 +1024,8 @@ _outIndexPath(StringInfo str, IndexPath *node)
WRITE_NODE_FIELD(indexquals);
WRITE_BOOL_FIELD(isjoininner);
WRITE_ENUM_FIELD(indexscandir, ScanDirection);
WRITE_FLOAT_FIELD(indextotalcost, "%.2f");
WRITE_FLOAT_FIELD(indexselectivity, "%.4f");
WRITE_FLOAT_FIELD(rows, "%.0f");
}