MDEV-14645: AS OF TIMESTAMP is misused as TRX_ID [fixes #396]

1 files changed, 14 insertions, 0 deletions

diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h
index adc7b2535a9..878179105be 100644
--- a/sql/item_timefunc.h
+++ b/sql/item_timefunc.h
@@ -1184,6 +1184,20 @@ public:
 };
 
 
+class Item_datetime_from_unixtime_typecast :public Item_datetime_typecast
+{
+  THD *thd;
+public:
+  Item_datetime_from_unixtime_typecast(THD *_thd, Item *a, uint dec_arg):
+    Item_datetime_typecast(_thd, a, dec_arg), thd(_thd) {}
+  const char *func_name() const { return "cast_as_datetime_from_unixtime"; }
+  const char *cast_type() const { return "datetime"; }
+  void fix_length_and_dec();
+  Item *get_copy(THD *thd)
+  { return get_item_copy<Item_datetime_from_unixtime_typecast>(thd, this); }
+};
+
+
 class Item_func_makedate :public Item_datefunc
 {
   bool check_arguments() const