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mariadb/mysql-test/r
Alexander Barkov 0e1c167e16 Bug#58005 utf8 + get_format causes failed assertion: !str || str != Ptr'
Problem: When GET_FORMAT() is called two times from the upper
level function (e.g. LEAST in the bug report), on the second
call "res= args[0]->val_str(...)" and str point to the same
String object.

1. Fix: changing the order from
- get val_str into tmp_value then convert to str
to
- get val_str into str then convert to tmp_value

The new order is more correct: the purpose of "str" parameter
is exactly to call val_str() for arguments.
The purpose of String class members (like tmp_value) is to do further
actions on the result.
Doing it in the other way around give unexpected surprises.

2. Using str_value instead of str to do padding, for the same reason.
2010-11-12 13:12:15 +03:00
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