Re: db grows and grows - Mailing list pgsql-general

From Robert Treat
Subject Re: db grows and grows
Date
Msg-id 1024603058.24091.129.camel@camel
Whole thread Raw
In response to Re: db grows and grows  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: db grows and grows
List pgsql-general
On Thu, 2002-06-20 at 11:40, Bruce Momjian wrote:
> Bjoern Metzdorf wrote:
>
> Yes, but the problem is that we don't have a plan on how to fix the
> index growth problem right now, so if people want to prevent index
> growth, reindex is the only solution.
>
> The TODO item says:
>
>     * Certain indexes will not shrink, e.g. indexes on ever-increasing
>       columns and indexes with many duplicate keys
>
> but in fact that wording is misleading.  >80% of index are on
> ever-increasing columns, so it isn't really 'certain index' but more
> accurately 'most indexes'.
>
> I am planning to add the reindex script to /contrib, document its need
> in the maintenance docs, and add an FAQ item.  If it gets fixed in 7.3,
> great.  If not, we will have communicated to users and given them the
> tools then need.
>

Would you say the reindex command/script is the recommended way of
dealing with the issue, rather than the create/rename method some have
suggested? Or maybe the difference is negligible? Does either method
have an upside in regards to the query planner statistics generated via
routine vacuum analyzes?

Robert Treat


pgsql-general by date:

Previous
From: Manfred Koizar
Date:
Subject: Re: selecting all records where a column is null
Next
From: "Dave Page"
Date:
Subject: Re: selecting all records where a column is null