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Re: query plan in pg7.4 vs 8.0.3

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I just re-checked, and all the same index definitions are on both tables.

Cheers,
-albert

On 17.6.2005, at 14:20, Tom Lane wrote:

Albert Vernon Smith <contact1@xxxxxxxxxxxx> writes:

I am in process of migrating a database from Pg 7.4.3 to Pg 8.0.3.  I
dumped and reloaded the data, and things look good, until I try to
work with it.  When I try to make a query to a view based on a large
join (select * from 'view' limit 10), the 7.4.3 query works very
well, and the indexes are being used well.  But, when I go to 8.0.3,
there are some very costly joins, and the query is not workable.


Are you sure you have all the same indexes in the 8.0 database?  It
looks like one might be missing on assay2rs.assay_id.

            regards, tom lane



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