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Re: reducing random_page_cost from 4 to 2 to force index scan - Mailing list pgsql-performance

From Claudio Freire
Subject Re: reducing random_page_cost from 4 to 2 to force index scan
Date
Msg-id BANLkTiknDrghb5MWczB8foL83HVPy=kR5g@mail.gmail.com
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In response to Re: reducing random_page_cost from 4 to 2 to force index scan  (Merlin Moncure <mmoncure@gmail.com>)
Responses Re: reducing random_page_cost from 4 to 2 to force index scan
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On Wed, Apr 27, 2011 at 3:04 AM, Merlin Moncure <mmoncure@gmail.com> wrote:
> The very first thing to check is effective_cache_size and to set it to
> a reasonable value.
>

The problem there, I think, is that the planner is doing a full join,
instead of a semi-join.

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