diff options
Diffstat (limited to 'src/backend/executor/nodeMergejoin.c')
| -rw-r--r-- | src/backend/executor/nodeMergejoin.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/executor/nodeMergejoin.c b/src/backend/executor/nodeMergejoin.c index bc036a30b0d..fdf2f4c1a85 100644 --- a/src/backend/executor/nodeMergejoin.c +++ b/src/backend/executor/nodeMergejoin.c @@ -230,19 +230,19 @@ MJExamineQuals(List *mergeclauses, qual->opno); /* And get the matching support or comparison function */ + Assert(clause->ssup.comparator == NULL); sortfunc = get_opfamily_proc(opfamily, op_lefttype, op_righttype, BTSORTSUPPORT_PROC); if (OidIsValid(sortfunc)) { - /* The sort support function should provide a comparator */ + /* The sort support function can provide a comparator */ OidFunctionCall1(sortfunc, PointerGetDatum(&clause->ssup)); - Assert(clause->ssup.comparator != NULL); } - else + if (clause->ssup.comparator == NULL) { - /* opfamily doesn't provide sort support, get comparison func */ + /* support not available, get comparison func */ sortfunc = get_opfamily_proc(opfamily, op_lefttype, op_righttype, |