From: salah jubeh <s_jubeh@yahoo.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Explain analyze time overhead
Date: Thu, 5 Dec 2013 06:09:00 -0800 (PST)
Message-ID: <1386252540.32882.YahooMailNeo@web122206.mail.ne1.yahoo.com> (raw)
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Hello guys,
When I excute a query, the exection time is about 1 minute; however, when I execute the query with explain analyze the excution time jumps to 10 minutes.
I have tried this for several queries, where I need to optimize; and using explain analyze leads alway to a huge time overhead in factor of 10.
This is a little bit starnge for me; did any one experience somthing like this? Can I trust the generated plans?
Regards
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To: pgsql-performance@postgresql.org
Cc: s_jubeh@yahoo.com
Subject: Re: Explain analyze time overhead
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