Hi, Am 14.02.2014 22:28, schrieb Sharath Gururaj:
Did you find a fix for this problem? I'm running into the same issue. I am manually doing a union in python to avoid the left outer join.
Unfortunately, I've not found anything else, and ended up using what I described in my earlier posts: computing the "OR" operation in Python, then using another query like `... .filter(id__in=S_a | S_b)`.
What I would like to know is: 1. Is there a reason why mysql performance is so slow on left outer join? (even with indexes)
I'm using Oracle, but I don't know the answer either way. I too would be interested in learning more, though!
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