diff options
Diffstat (limited to 'sql/sp.cc')
| -rw-r--r-- | sql/sp.cc | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/sql/sp.cc b/sql/sp.cc index d28e9138fa8..3c8ebed4ae6 100644 --- a/sql/sp.cc +++ b/sql/sp.cc @@ -1873,15 +1873,11 @@ sp_use_new_db(THD *thd, LEX_STRING new_db, LEX_STRING *old_db, DBUG_PRINT("enter", ("newdb: %s", new_db.str)); /* - Set new_db to an empty string if it's NULL, because mysql_change_db - requires a non-NULL argument. - new_db.str can be NULL only if we're restoring the old database after - execution of a stored procedure and there were no current database - selected. The stored procedure itself must always have its database - initialized. + A stored routine always belongs to some database. The + old database (old_db) might be NULL, but to restore the + old database we will use mysql_change_db. */ - if (new_db.str == NULL) - new_db.str= empty_c_string; + DBUG_ASSERT(new_db.str && new_db.length); if (thd->db) { |