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From: Tom Lane <[email protected]>
To: Jesper Krogh <[email protected]>
Cc: Bill Martin <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Planner selects different execution plans depending on limit
Date: Thu, 13 Sep 2012 10:54:19 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <D48BF41C96B16442B542F5E25C259047011E80F02A@COM211.communardo.local>
	<[email protected]>

Jesper Krogh <[email protected]> writes:
> On 13/09/12 16:42, Bill Martin wrote:
>> Yes, I've run the ANALYZE command. Regards, Bill Martin 

> The main problem in your case is actually that you dont store the 
> tsvector in the table.

Oh, duh, obviously I lack caffeine this morning.

> If you store to_tsvector('simple',content.content) in a column in
> the database and search against that instead
> then you'll allow PG to garther statistics on the column and make the
> query-planner act according to that.

He can do it without having to change his schema --- but it's the index
column, not the underlying content column, that needs its statistics
target adjusted.

			regards, tom lane

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