diff options
Diffstat (limited to 'sql/sql_derived.cc')
| -rw-r--r-- | sql/sql_derived.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc index e1d701936cf..fc9d15e94c4 100644 --- a/sql/sql_derived.cc +++ b/sql/sql_derived.cc @@ -114,6 +114,10 @@ int mysql_derived_prepare(THD *thd, LEX *lex, TABLE_LIST *orig_table_list) bool is_union= first_select->next_select() && first_select->next_select()->linkage == UNION_TYPE; + /* prevent name resolving out of derived table */ + for (SELECT_LEX *sl= first_select; sl; sl= sl->next_select()) + sl->context.outer_context= 0; + if (!(derived_result= new select_union(0))) DBUG_RETURN(1); // out of memory |