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/rewrite/rewriteManip.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/backend/rewrite') diff --git a/src/backend/rewrite/rewriteManip.c b/src/backend/rewrite/rewriteManip.c index acbe669294d..fd7a751c9a8 100644 --- a/src/backend/rewrite/rewriteManip.c +++ b/src/backend/rewrite/rewriteManip.c @@ -761,7 +761,7 @@ IncrementVarSublevelsUp_walker(Node *node, result = query_tree_walker((Query *) node, IncrementVarSublevelsUp_walker, (void *) context, - QTW_EXAMINE_RTES); + QTW_EXAMINE_RTES_BEFORE); context->min_sublevels_up--; return result; } @@ -785,7 +785,7 @@ IncrementVarSublevelsUp(Node *node, int delta_sublevels_up, query_or_expression_tree_walker(node, IncrementVarSublevelsUp_walker, (void *) &context, - QTW_EXAMINE_RTES); + QTW_EXAMINE_RTES_BEFORE); } /* @@ -804,7 +804,7 @@ IncrementVarSublevelsUp_rtable(List *rtable, int delta_sublevels_up, range_table_walker(rtable, IncrementVarSublevelsUp_walker, (void *) &context, - QTW_EXAMINE_RTES); + QTW_EXAMINE_RTES_BEFORE); } -- cgit v1.2.3