Re: bzr commit into mysql-6.0-bugfixing branch (oystein.grovlen:2838) Bug#47217

[Jørgen Løland]

Oystein,

The fix looks good. However, I think it would be valuable if we use 
bugfixes to add comments to non-obvious parts of the code that the bug 
touched.

In addition to the comments you already added to sql_select.cc, the 
difference between the two Item_func_eq[ual] classes in item_cmpfunc.h 
would benefit from a comment describing the different ways nulls are 
handled.

Patch approved.

-- 
Jørgen Løland