Re: query creates a huge toast tables - Mailing list pgsql-general

From Jeff Janes
Subject Re: query creates a huge toast tables
Date
Msg-id CAMkU=1yA=cb1hB8F-crorOCuVVcjjXQPWk1NPv69z6Dth4AXJQ@mail.gmail.com
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In response to query creates a huge toast tables  (Steve.Toutant@inspq.qc.ca)
Responses Re: query creates a huge toast tables
List pgsql-general
On Thu, Nov 28, 2013 at 8:25 AM, <Steve.Toutant@inspq.qc.ca> wrote:

Hi,
This query (postgis)  didn't endup after 4 hours....and eat 40gig of disk space

SELECT  id, gridcode, ST_Difference(a.geom32198_s,b.geom32198_s) as geom32198_s

into potentialite
FROM province as a, potentialite_tmp as b;


I stopped the execution and cancel request sent appears, but after an hour the request wasn't stopped yet.

So I killed the process and restat postgres.


The database is up and running but I didn't get the 40gig of disk space back. And only 5gig remains on the server


It is this table that is so huge

pg_toast.pg_toast_11037520


What table (if any) does it belong to?  "select relname from pg_class where oid=11037520"
 
Cheers,

Jeff

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