Hmmm.... 0.7 is missing expression.FromGrouping... I imagine that is a big 
deal, isn't it, like not really patchable?



On Wednesday, January 21, 2015 at 3:11:29 PM UTC-5, Kent wrote:
>
> Here it is:
>
> commit 85368d25ed158c85bd19f4a63400884ab1cda26a
> Author: Mike Bayer <m...>
> Date:   Sat Jun 8 18:54:14 2013 -0400
>
>     get nested joins to render on oracle 8
>
>
>
> Sounds like the right commit notes.  You still maintaining 0.8?  Should 
> that change be patchable in 0.7?  
>
>
> On Wednesday, January 21, 2015 at 1:13:21 PM UTC-5, Michael Bayer wrote:
>>
>>
>>
>> Kent <jkent...@gmail.com> wrote: 
>>
>> > Mike, 
>> > 
>> > When using use_ansi=False for Oracle (8) in conjunction with 
>> joinedload-ing an inline view property, SQLAlchemy-0.8.7 renders an inner 
>> join instead of an outer join.  This has been fixed in SQLAlchemy-0.9.0, 
>> but, as I'm not prepared for the migration yet, I was hoping and failing to 
>> find the bug ticket and hopefully a patch.  Do you know when/where this was 
>> fixed and whether the fix would be patch'able in 0.7 or at least 0.8? 
>> > 
>> > The attached script runs on 0.9.0+ but the assertion fails on 0.8.7. 
>> > 
>> > The only difference in SQL output is the outer join "(+)": 
>> > 
>> > SELECT products.productid AS products_productid, anon_1.productid AS 
>> anon_1_productid, anon_1.siteid AS anon_1_siteid, anon_1.qty AS anon_1_qty 
>> > FROM products, (SELECT inventory.productid AS productid, 
>> inventory.siteid AS siteid, sum(inventory.qty) AS qty 
>> > FROM inventory GROUP BY inventory.productid, inventory.siteid) anon_1 
>> > WHERE anon_1.productid(+) = products.productid ORDER BY anon_1.siteid 
>> > 
>> > Interestingly, use-ansi=True correctly renders "LEFT OUTER JOIN" in 
>> 0.8.7 but it fails to render as an outer join with use-ansi=False. 
>> > 
>> > Thanks for you time and exceptional software, 
>> > Kent 
>> > 
>>
>>
>> no specific fixes are logged, however 
>> http://docs.sqlalchemy.org/en/rel_0_9/changelog/migration_09.html#many-join-and-left-outer-join-expressions-will-no-longer-be-wrapped-in-select-from-as-anon-1
>>  
>> refers to a very large change in how the ORM decides to join things.   
>>  That would cause some kinds of joinedloads to render differently , which 
>> would impact how (+) comes out as well, but i wouldn’t think it would have 
>> the effect that the missing (+) is the only change, it would be more than 
>> that. 
>>
>> So I have no better idea than you, so the method I’d do is just to git 
>> bisect (http://git-scm.com/docs/git-bisect) through revisions until you 
>> find the fix.  If it’s a big merge revision, I can look into it to find 
>> something specific, but if you can get me a rev ID that would be a good 
>> start. 
>>
>>
>>

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