Re: 7.30 -> 9.20 Anyone remember this?
Posted in 2000
UPDATE STATISTICS?
From: dmoeller@geocities.com
>
>I have an existing 7.30.UC2 database where I run a large join query
>(building a big fact table). I installed 9.20.UC2 into another
>different INFORMIXDIR and dumped the schema from the 7.30 instance and
>loaded up into the 9.20 instance for all the tables.
>
>I then setup connectivity between the instances and copied the data over
>with select's.
>
>The problem is when I run the same large join query in the 9.20
>instance performance is terrible. 200 rows per second vs. 3000 rows a
>second for the 7.30 instance.
>
>Awhile back I had a similar problem that was fixed by relinking some of
>the files in /usr/lib. The problem with that is the 9.20 files have a 9
>in the name and the 7.30 instance files have a 7 in the name. So I'm
>sure the 9.20 instance is not looking at the wrong files.
>
>Anyone remember this or encounter this before? /INFORMIXTMP come into
>play anywhere?
>
>I'm quite sure it's not any of the ONCONFIG settings or indexes, etc.
>Those are EXACTLY the same with the exception of course of the unique
>parameters...
>
>Thanks,
>
>Dave
>
>
>Sent via Deja.com http://www.deja.com/
>Before you buy.
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