Hi Kristian,

I've at last figured out the join_nested issue. To sum up, it was a false
alarm, the fix is to adjust the test suite and I've pushed it to the
lp:~maria-captains/maria/5.1-merge tree.

On Sun, Dec 27, 2009 at 07:48:33PM +0300, Sergey Petrunya wrote:
> At file:///home/psergey/dev/5.1-merge-look/
> 
> ------------------------------------------------------------
> revno: 2777
> revision-id: [email protected]
> parent: [email protected]
> committer: Sergey Petrunya <[email protected]>
> branch nick: 5.1-merge-look
> timestamp: Sun 2009-12-27 19:48:27 +0300
> message:
>   Make pbxt.join_nested test pass
>   - The reason the test failed was competition between 3+ QEPs with identical
>     costs. Before, two plans were competing, and that was addressed by using 
>     --sorted_result on the EXPLAIN output because they were different only in 
>     join order.
>     Now we've got a 3rd plan which differs with "Using where" and that 
> doesn't 
>     work anymore.
>   - This patch fixes it by removing 'Using where' from EXPLAIN output. Test 
> coverage
>     is somewhat reduced but probably still ok as PBXT and nested outer join 
> processing
>     have no interaction and we don't expect any bugs here.

BR
 Sergey
-- 
Sergey Petrunia, Software Developer
Monty Program AB, http://askmonty.org
Blog: http://s.petrunia.net/blog

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