From: Tom Lane <tgl@sss.pgh.pa.us>
To: Teodor Sigaev <teodor@sigaev.ru>
Cc: pgsql-patches@postgresql.org, Gregory Stark <stark@enterprisedb.com>
Cc: Jan Wieck <JanWieck@Yahoo.com>
Subject: Re: Proposed patch to change TOAST compression strategy
Date: Mon, 18 Feb 2008 13:52:40 -0500
Message-ID: <25566.1203360760@sss.pgh.pa.us> (raw)
In-Reply-To: <47B95782.7090302@sigaev.ru>
References: <26048.1203271939@sss.pgh.pa.us>
<47B95782.7090302@sigaev.ru>
Teodor Sigaev <teodor@sigaev.ru> writes:
>> I have not done any performance testing of these changes --- does
>> anyone have specific test scenarios they'd like to try?
> That's very important change for text search, because of tsvector storage.
> Headline and rank reads a lot of tsvectors. It seems to me that ranking test
> will be very clear: rank function reads whole tsvector and returns small amount
> of data (just a number).
I have no test data sets with large tsvector fields. If you do, could
you try it with this patch and see what the results are like?
regards, tom lane
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To: pgsql-patches@postgresql.org
Cc: tgl@sss.pgh.pa.us, teodor@sigaev.ru, stark@enterprisedb.com, JanWieck@Yahoo.com
Subject: Re: Proposed patch to change TOAST compression strategy
In-Reply-To: <25566.1203360760@sss.pgh.pa.us>
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