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Re: Bad Plan for Questionnaire-Type Query

From: David Blewett <david(at)dawninglight(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Bad Plan for Questionnaire-Type Query
Date: 2009-05-09 15:15:17
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
On Fri, May 8, 2009 at 10:00 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Thanks.  Could I trouble you for one other data point --- about how many
> rows are in each of these tables?

Not a problem:
canvas_dateresponse          263819
canvas_foreignkeyresponse 646484
canvas_integerresponse      875375
canvas_submission              135949
canvas_textresponse           142698


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Subject: Re: Slow select performance despite seemingly reasonable query plan

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