• Sergey Glukhov's avatar
    Bug#48294 assertion when creating a view based on some row() construct in select query · 46cffd7f
    Sergey Glukhov authored
    In case of 'CREATE VIEW' subselect transformation does not happen(see JOIN::prepare).
    During fix_fields Item_row may call is_null() method for its arugmens which
    leads to item calculation(wrong subselect in our case as
    transformation did not happen before). This is_null() call
    does not make sence for 'CREATE VIEW'.
    Note:
    Only Item_row is affected because other items don't call is_null() 
    during fix_fields() for arguments.
    
    mysql-test/r/view.result:
      test case
    mysql-test/t/view.test:
      test case
    sql/item_row.cc:
      skip is_null() call in case of 'CREATE VIEW' as unnecessary.
    46cffd7f
item_row.cc 4.73 KB