diff options
Diffstat (limited to 'sql/item_func.cc')
| -rw-r--r-- | sql/item_func.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index 4d03e209eab..7b39b7710fb 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -4882,7 +4882,8 @@ update_hash(user_var_entry *entry, bool set_null, void *ptr, uint length, length--; // Fix length change above entry->value[length]= 0; // Store end \0 } - memmove(entry->value, ptr, length); + if (length) + memmove(entry->value, ptr, length); if (type == DECIMAL_RESULT) ((my_decimal*)entry->value)->fix_buffer_pointer(); entry->length= length; |