Vicențiu Ciorbaru aa74fef25e Fix 2 more bugs in item_windowfunc. ...

1. Item_windowfunc must check the nullness of the field if it returns the
   value from the result_field.
2. The decimal value must come from the window_func instead of the
   result_field when not fetching values from the result_field.

Added a more extensive test case that highlights if these bugs occur.
The 2 select statements check behaviour for decimal and real typed
fields respectively.

2016-03-16 01:42:45 +02:00

919 B

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