summaryrefslogtreecommitdiff
path: root/sql/item_cmpfunc.h
diff options
context:
space:
mode:
Diffstat (limited to 'sql/item_cmpfunc.h')
-rw-r--r--sql/item_cmpfunc.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 0e157fd412c..4635a301c31 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -843,7 +843,8 @@ public:
else
{
args[0]->update_used_tables();
- if ((const_item_cache= !(used_tables_cache= args[0]->used_tables())))
+ if ((const_item_cache= !(used_tables_cache= args[0]->used_tables())) &&
+ !with_subselect)
{
/* Remember if the value is always NULL or never NULL */
cached_value= (longlong) args[0]->is_null();