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Teach planstate_tree_walker about custom scans.

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This logic was missing from ExplainPreScanNode, from which I derived
planstate_tree_walker.  But it shouldn't be missing, especially not
from a generic walker function, so add it.

KaiGai Kohei
This commit is contained in:
Robert Haas 2015-09-22 21:42:00 -04:00
parent b1d5cc375b
commit 262e56bcae
1 changed files with 8 additions and 0 deletions
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8
src/backend/nodes/nodeFuncs.c
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@ -3428,6 +3428,7 @@ bool
planstate_tree_walker(PlanState *planstate, bool (*walker) (), void *context)
{
Plan *plan = planstate->plan;
ListCell *lc;
/* initPlan-s */
if (planstate_walk_subplans(planstate->initPlan, walker, context))
@ -3484,6 +3485,13 @@ planstate_tree_walker(PlanState *planstate, bool (*walker) (), void *context)
if (walker(((SubqueryScanState *) planstate)->subplan, context))
return true;
break;
case T_CustomScan:
foreach (lc, ((CustomScanState *) planstate)->custom_ps)
{
if (walker((PlanState *) lfirst(lc), context))
return true;
}
break;
default:
break;
}