Re: Why the difference in plans ? - Mailing list pgsql-performance

From Dave Cramer
Subject Re: Why the difference in plans ?
Date
Msg-id D9F2B8C8-C64A-490E-BB94-0322A6619FAF@fastcrypt.com
Whole thread Raw
In response to Re: Why the difference in plans ?  (Josh Berkus <josh@agliodbs.com>)
List pgsql-performance
On 6-Mar-08, at 12:26 PM, Josh Berkus wrote:

> Dave,
>
>> Below I have two almost identical queries.  Strangely enough the one
>> that uses the index is slower ???
>
> My first guess would be that records are highly correlated by DOB
> and not at
> all by name.  However, it would help if you supplied both the index
> definitions and what changed between the two queries to cause the
> index to be
> used.

The two queries were run 2 seconds apart, there were no changes
between. I'll get the index definitions.

Dave
>
>
> --
> Josh Berkus
> PostgreSQL @ Sun
> San Francisco
>
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