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Re: Tsearch2 Initial Search Speed

From: Howard Cole <howardnews(at)selestial(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Tsearch2 Initial Search Speed
Date: 2008-06-17 13:28:23
Message-ID: 4857BBF7.7070909@selestial.com (view raw or flat)
Thread:
Lists: pgsql-performance
> Actually, the index returns page numbers in the table on disc which 
> may contain one or more rows that are relevant. Postgres has to fetch 
> the whole row to find out the email_id and any other information, 
> including whether the row is visible in your current transaction 
> (concurrency control complicates it all). Just having a page number 
> isn't much use to you!
>
> Matthew
>
I learn something new every day.

Thanks Matthew.

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