Re: Database Bloat

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От John R Pierce
Тема Re: Database Bloat
Дата
Msg-id 50327D7E.4040804@hogranch.com
обсуждение исходный текст
Ответ на Database Bloat  (elliott <elliott@cpi.com>)
Ответы Re: Database Bloat  (elliott <elliott@cpi.com>)
Список pgsql-general
On 08/20/12 10:53 AM, elliott wrote:
> Hi,
>
> I am using PostgreSQL 9.1 and loading very large tables ( 13 million
> rows each ).  The flat file size is only 25M.  However, the equivalent
> database table is 548MB.  This is without any indexes applied and auto
> vacuum  turned on.  I have read that the bloat can be around 5 times
> greater for tables than flat files so over 20 times seems quite
> excessive.
>
> Any ideas on how to go about decreasing this bloat or is this not
> unexpected for such large tables?


what do the fields of this table look like (output from \d tablename
would be useful)


--
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast



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