Re: Performance of column order

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Service(at)Sommer-Maschinenbau(dot)de
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Performance of column order
Date: 2002-04-18 15:27:59
Message-ID: 200204181527.g3IFRxL09772@candle.pha.pa.us
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Egon Sommer wrote:
> Hallo!
>
> Do anybody know if the order of the columns in a table has affect
> on the performance?
>
> Should I use length-variable colums like TEXT, BLOB,... alfter
> length-static colums like INTEGER, BOOLEAN, ...?

It is very slightly faster to have variable length stuff after fixed length
fields.

> Is there a advantage to create a separate table for BLOBS and
> TEXT joining the main table about a primary key?

Probably, though TOAST stores large stuff in backup tables anyway, so
there is probably little difference.

--
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