Re: FILLFACTOR and increasing index

From: Leonardo Francalanci <m_lists(at)yahoo(dot)it>
To: Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: FILLFACTOR and increasing index
Date: 2011-05-09 14:32:38
Message-ID: 882255.95173.qm@web29015.mail.ird.yahoo.com
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> > I have an index on a timestamp value that is inserted, for 90%
> > of the inserts, in increasing order. No updates, no deletes on the
> > table (appends only).
>
> The bit about "increasing order" is a red herring here. If you have
> no updates, then you can leave the FILLFACTOR alone.
>
> FILLFACTOR controls how much extra room there is in the way the table
> is stored, so that if a row is UPDATEd it might be possible to store
> the row in the same disk page. This alleviates certain pathological
> conditions with high-UPDATE tables and the way Postgres stores the
> data (the non-overwriting storage manager).

(please add the list when replying to emails)

I'm talking about the index fillfactor, not the table fillfactor...

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