Re: delete is getting hung when there is a huge data in table

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Mitu Verma <mitu(dot)verma(at)ericsson(dot)com>
Cc: "'pgsql-general(at)postgresql(dot)org' (pgsql-general(at)postgresql(dot)org)" <pgsql-general(at)postgresql(dot)org>
Subject: Re: delete is getting hung when there is a huge data in table
Date: 2015-05-03 05:28:35
Message-ID: CAKFQuwaDzyAXCrCPbH9YaOhb_0=wXgEpyWHnTqZVaqWxdeRFwQ@mail.gmail.com
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On Saturday, May 2, 2015, Mitu Verma <mitu(dot)verma(at)ericsson(dot)com> wrote:

>
> still this delete operation is not working and not a single row has been
> deleted from the table.
>
>
Because of MVCC other sessions are not able to see partial deletions...and
as you aluded to knowing the data itself is not actually removed by a
deletion though a vacuum will eventually allow the same space to be reused
thus deferring the increase in size from future insertions.

David J.

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