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Diffstat (limited to 'sql/sql_update.cc')
| -rw-r--r-- | sql/sql_update.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_update.cc b/sql/sql_update.cc index 291f829a4e3..a19a3e46798 100644 --- a/sql/sql_update.cc +++ b/sql/sql_update.cc @@ -1107,6 +1107,7 @@ static bool safe_update_on_fly(JOIN_TAB *join_tab, List<Item> *fields) case JT_EQ_REF: return TRUE; // At most one matching row case JT_REF: + case JT_REF_OR_NULL: return !check_if_key_used(table, join_tab->ref.key, *fields) && !(table->triggers && table->triggers->has_before_update_triggers()); |