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Re: Odd performance results

From: "Medora Schauer" <mschauer(at)fairfield(dot)com>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "postgresql" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Odd performance results
Date: 2003-07-31 21:32:16
Message-ID: (view raw or whole thread)
Lists: pgsql-performance
Orignally there were but in the process of trying to figure
out what is going on I stripped everything out of the database
except the table being queried.

> "Medora Schauer" <mschauer(at)fairfield(dot)com> writes:
> > I have a table with a 3 column key.  I noticed that when I 
> update a non-key field
> > in a record of the table that the update was taking longer 
> than I thought it 
> > should.  After much experimenting I discovered that if I 
> changed the data
> > types of two of the key columns to FLOAT8 that I got vastly improved
> > performance.
> Are there any foreign key linkages to or from this table?  Maybe the
> other end of the foreign key is float8?
> 			regards, tom lane

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