Re: Odd performance results - Mailing list pgsql-performance

From Medora Schauer
Subject Re: Odd performance results
Date
Msg-id 906E2C446A276048A1BE283F17BCB12CB131EA@encounter.fairind.fairfield.com
Whole thread Raw
In response to Odd performance results  ("Medora Schauer" <mschauer@fairfield.com>)
List 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@fairfield.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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