From 1479908cd0df9cc77968dbb0def484f59ad9d64c Mon Sep 17 00:00:00 2001 From: Alvaro Herrera Date: Thu, 26 Sep 2019 18:01:04 -0300 Subject: [PATCH 9/9] Fix crash in multirange_intersect_multirange_internal --- src/backend/utils/adt/multirangetypes.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/backend/utils/adt/multirangetypes.c b/src/backend/utils/adt/multirangetypes.c index c85f5dc90d..7717acb3b1 100644 --- a/src/backend/utils/adt/multirangetypes.c +++ b/src/backend/utils/adt/multirangetypes.c @@ -1123,7 +1123,8 @@ multirange_intersect_multirange(PG_FUNCTION_ARGS) MultirangeType * multirange_intersect_multirange_internal(Oid mltrngtypoid, TypeCacheEntry *rangetyp, - int32 range_count1, RangeType **ranges1, int32 range_count2, RangeType **ranges2) + int32 range_count1, RangeType **ranges1, + int32 range_count2, RangeType **ranges2) { RangeType *r1; RangeType *r2; @@ -1132,6 +1133,9 @@ multirange_intersect_multirange_internal(Oid mltrngtypoid, TypeCacheEntry *range int32 i1; int32 i2; + if (range_count1 == 0 || range_count2 == 0) + return make_multirange(mltrngtypoid, rangetyp, 0, NULL); + /* * Worst case is a stitching pattern like this: * -- 2.17.1