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Make ExecInitExpr build the list of SubPlans found in a plan tree in order

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of discovery, rather than reverse order.  This doesn't matter functionally
(I suppose the previous coding dates from the time when lcons was markedly
cheaper than lappend).  However now that EXPLAIN is labeling subplans with
IDs that are based on order of creation, this may help produce a slightly
less surprising printout.
This commit is contained in:
Tom Lane 2009-04-05 20:32:06 +00:00
parent fbcce08046
commit eb4c723e56
1 changed files with 2 additions and 2 deletions
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4
src/backend/executor/execQual.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.244 2009/04/02 22:39:29 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.245 2009/04/05 20:32:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -4326,7 +4326,7 @@ ExecInitExpr(Expr *node, PlanState *parent)
sstate = ExecInitSubPlan(subplan, parent);
/* Add SubPlanState nodes to parent->subPlan */
parent->subPlan = lcons(sstate, parent->subPlan);
parent->subPlan = lappend(parent->subPlan, sstate);
state = (ExprState *) sstate;
}