ramil/ram@mysql.com/ramil.myoffice.izhnet.ru 924bdf2c78 Fix for bug #32558: group by null-returning expression with rollup causes crash ...

Problem: setting Item_func_rollup_const::null_value property to argument's null_value
before (without) the argument evaluation may result in a crash due to wrong null_value.

Fix: use is_null() to set Item_func_rollup_const::null_value instead as it evaluates
the argument if necessary and returns a proper value.

2007-11-21 20:53:44 +04:00

12 KiB

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