From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
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To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
Cc: | Aaron Guyon <battlemage(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Postgres 8.3, four times slower queries? |
Date: | 2009-03-05 16:56:08 |
Message-ID: | 603c8f070903050856y37d9825bga53fcc2017143163@mail.gmail.com |
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Lists: | pgsql-performance |
On Thu, Mar 5, 2009 at 10:20 AM, Kevin Grittner
<Kevin(dot)Grittner(at)wicourts(dot)gov> wrote:
>>>> Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> Well, it looks like the problem is that 8.3 is not using the index
>> idx_bundle_content_bundle_id. But I don't know why that should be
>> happening, unless there's a problem with that index.
>
> I didn't see that index defined. In fact, in the query shown, t8 is
> the payment_amount table, but in plan, I don't see any references to
> that table, and t8 is a table called bundle_content which is not
> included.
Good point. Now that you mention it, I notice that many of the tables
and columns seem to have been renamed. It's pretty hard to make
anything intelligible out of a schema that doesn't resemble the plan.
...Robert
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