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Change Agg and Group nodes so that Vars contained in their targetlists

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and quals have varno OUTER, rather than zero, to indicate a reference to
an output of their lefttree subplan.  This is consistent with the way
that every other upper-level node type does it, and allows some simplifications
in setrefs.c and EXPLAIN.
This commit is contained in:
Tom Lane
2007-02-22 23:44:25 +00:00
parent 3c5985b473
commit cc77005df7
6 changed files with 72 additions and 64 deletions
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8
src/backend/executor/nodeResult.c
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@ -38,7 +38,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.39 2007/02/16 03:49:04 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.40 2007/02/22 23:44:25 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -132,13 +132,11 @@ ExecResult(ResultState *node)
if (TupIsNull(outerTupleSlot))
return NULL;
node->ps.ps_OuterTupleSlot = outerTupleSlot;
/*
* XXX gross hack. use outer tuple as scan tuple for projection
* prepare to compute projection expressions, which will expect
* to access the input tuples as varno OUTER.
*/
econtext->ecxt_outertuple = outerTupleSlot;
econtext->ecxt_scantuple = outerTupleSlot;
}
else
{