• unknown's avatar
    Add 5.0 part of fix for bug 17047. · af22eb35
    unknown authored
    
    mysql-test/r/func_str.result:
      Add result for bug#17047: CHAR() and IN() can return NULL without
      signaling NULL result.
    mysql-test/t/func_str.test:
      Add test case for bug#17047: CHAR() and IN() can return NULL without
      signaling NULL result.
    sql/item_strfunc.cc:
      Add Item_str_func::fix_fields() implementation, and set maybe_null to
      TRUE if we are in the SQL mode that requires some functions to return
      null even if they normally do not.
    sql/item_strfunc.h:
      Add declaration of Item_str_func::fix_fields().
      Do not reset maybe_null in Item_func_char::fix_length_and_dec().
    af22eb35
item_strfunc.h 22.4 KB