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Home -> Community -> Mailing Lists -> Oracle-L -> Re: query slow in 9i, but not slow in 8i
That was the same I had, but I solved using the hint no_merge.
----- Original Message -----
From: "Duret, Kathy" <kduret_at_starkinvestments.com>
To: <oracle-l_at_freelists.org>
Sent: Monday, March 01, 2004 1:24 PM
Subject: RE: query slow in 9i, but not slow in 8i
> I don't know your whole issue, but I opened up a tar with oracle as 80% as
> our sql when waaaaay slower when we switched one of our production systems
> over to 9i.
> :
> They told us to use:_complex_view_merging=false and this solved our
problem
> (your mileage may vary)
>
> However, we have optimizer_max_permutations=80000 like oracle 8i (the old
> dba must have been a carry over from 8i).
>
> Haven't had time to see if setting the max permutations to 2000 solved our
> problems or not.
>
>
> Kathy
>
>
>
>
>
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