From 181ccbb5e49cdc628e0c8334a9ed57dbc736efe8 Mon Sep 17 00:00:00 2001 From: Alvaro Herrera Date: Thu, 12 Apr 2018 16:51:55 -0300 Subject: [PATCH] Add comment about default partition in check_new_partition_bound The intention of the test is not immediately obvious, so we need this much. --- src/backend/catalog/partition.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/backend/catalog/partition.c b/src/backend/catalog/partition.c index 0f5932feeef..55130e66e4b 100644 --- a/src/backend/catalog/partition.c +++ b/src/backend/catalog/partition.c @@ -858,6 +858,12 @@ check_new_partition_bound(char *relname, Relation parent, if (spec->is_default) { + /* + * The default partition bound never conflicts with any other + * partition's; if that's what we're attaching, the only possible + * problem is that one already exists, so check for that and we're + * done. + */ if (boundinfo == NULL || !partition_bound_has_default(boundinfo)) return; -- 2.39.5