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Be more realistic about plans involving Materialize nodes: take their

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cost into account while planning.
This commit is contained in:
Tom Lane
2002-11-30 05:21:03 +00:00
parent 829cedc8cf
commit 935969415a
19 changed files with 320 additions and 160 deletions
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32
src/backend/nodes/copyfuncs.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.224 2002/11/30 00:08:16 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.225 2002/11/30 05:21:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1142,6 +1142,27 @@ _copyResultPath(ResultPath *from)
return newnode;
}
/*
* _copyMaterialPath
*/
static MaterialPath *
_copyMaterialPath(MaterialPath *from)
{
MaterialPath *newnode = makeNode(MaterialPath);
/*
* copy node superclass fields
*/
CopyPathFields((Path *) from, (Path *) newnode);
/*
* copy remainder of node
*/
COPY_NODE_FIELD(subpath);
return newnode;
}
/*
* CopyJoinPathFields
*
@ -2739,6 +2760,9 @@ copyObject(void *from)
case T_RelOptInfo:
retval = _copyRelOptInfo(from);
break;
case T_IndexOptInfo:
retval = _copyIndexOptInfo(from);
break;
case T_Path:
retval = _copyPath(from);
break;
@ -2754,6 +2778,9 @@ copyObject(void *from)
case T_ResultPath:
retval = _copyResultPath(from);
break;
case T_MaterialPath:
retval = _copyMaterialPath(from);
break;
case T_NestPath:
retval = _copyNestPath(from);
break;
@ -2772,9 +2799,6 @@ copyObject(void *from)
case T_JoinInfo:
retval = _copyJoinInfo(from);
break;
case T_IndexOptInfo:
retval = _copyIndexOptInfo(from);
break;
case T_InnerIndexscanInfo:
retval = _copyInnerIndexscanInfo(from);
break;