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Diffstat (limited to 'src/backend/optimizer/plan/setrefs.c')
| -rw-r--r-- | src/backend/optimizer/plan/setrefs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/optimizer/plan/setrefs.c b/src/backend/optimizer/plan/setrefs.c index daeb5842d04..3c8169725a0 100644 --- a/src/backend/optimizer/plan/setrefs.c +++ b/src/backend/optimizer/plan/setrefs.c @@ -174,6 +174,8 @@ static bool extract_query_dependencies_walker(Node *node, * Currently, relations and user-defined functions are the only types of * objects that are explicitly tracked this way. * + * 7. We assign every plan node in the tree a unique ID. + * * We also perform one final optimization step, which is to delete * SubqueryScan plan nodes that aren't doing anything useful (ie, have * no qual and a no-op targetlist). The reason for doing this last is that @@ -436,6 +438,9 @@ set_plan_refs(PlannerInfo *root, Plan *plan, int rtoffset) if (plan == NULL) return NULL; + /* Assign this node a unique ID. */ + plan->plan_node_id = root->glob->lastPlanNodeId++; + /* * Plan-type-specific fixes */ |