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First cut at planner support for bitmap index scans. Lots to do yet,

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but the code is basically working.  Along the way, rewrite the entire
approach to processing OR index conditions, and make it work in join
cases for the first time ever.  orindxpath.c is now basically obsolete,
but I left it in for the time being to allow easy comparison testing
against the old implementation.
This commit is contained in:
Tom Lane
2005-04-22 21:58:32 +00:00
parent ccbb07d922
commit bc843d3960
22 changed files with 1044 additions and 615 deletions
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13
src/backend/commands/explain.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994-5, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.133 2005/04/19 22:35:10 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.134 2005/04/22 21:58:31 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -847,9 +847,14 @@ explain_outNode(StringInfo str,
for (i = 0; i < indent; i++)
appendStringInfo(str, " ");
appendStringInfo(str, " -> ");
/*
* Ordinarily we don't pass down our own outer_plan value to our
* child nodes, but in bitmap scan trees we must, since the bottom
* BitmapIndexScan nodes may have outer references.
*/
explain_outNode(str, outerPlan(plan),
outerPlanState(planstate),
NULL,
IsA(plan, BitmapHeapScan) ? outer_plan : NULL,
indent + 3, es);
}
@ -907,7 +912,7 @@ explain_outNode(StringInfo str,
explain_outNode(str, subnode,
bitmapandstate->bitmapplans[j],
NULL,
outer_plan, /* pass down same outer plan */
indent + 3, es);
j++;
}
@ -931,7 +936,7 @@ explain_outNode(StringInfo str,
explain_outNode(str, subnode,
bitmaporstate->bitmapplans[j],
NULL,
outer_plan, /* pass down same outer plan */
indent + 3, es);
j++;
}