From 18c0da88a5d9da566c3bfac444366b73bd0b57da Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Fri, 25 Jan 2019 17:09:45 -0500 Subject: Split QTW_EXAMINE_RTES flag into QTW_EXAMINE_RTES_BEFORE/_AFTER. This change allows callers of query_tree_walker() to choose whether to visit an RTE before or after visiting the contents of the RTE (i.e., prefix or postfix tree order). All existing users of QTW_EXAMINE_RTES want the QTW_EXAMINE_RTES_BEFORE behavior, but an upcoming patch will want QTW_EXAMINE_RTES_AFTER, and it seems like a potentially useful change on its own. Andreas Karlsson (extracted from CTE inlining patch) Discussion: https://postgr.es/m/8810.1542402910@sss.pgh.pa.us --- src/backend/optimizer/plan/setrefs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/backend/optimizer/plan/setrefs.c') diff --git a/src/backend/optimizer/plan/setrefs.c b/src/backend/optimizer/plan/setrefs.c index 5d363edab80..6bd3b2d1ac1 100644 --- a/src/backend/optimizer/plan/setrefs.c +++ b/src/backend/optimizer/plan/setrefs.c @@ -340,7 +340,7 @@ flatten_unplanned_rtes(PlannerGlobal *glob, RangeTblEntry *rte) (void) query_tree_walker(rte->subquery, flatten_rtes_walker, (void *) glob, - QTW_EXAMINE_RTES); + QTW_EXAMINE_RTES_BEFORE); } static bool @@ -363,7 +363,7 @@ flatten_rtes_walker(Node *node, PlannerGlobal *glob) return query_tree_walker((Query *) node, flatten_rtes_walker, (void *) glob, - QTW_EXAMINE_RTES); + QTW_EXAMINE_RTES_BEFORE); } return expression_tree_walker(node, flatten_rtes_walker, (void *) glob); -- cgit v1.2.3