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Re: indexing words

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: M(dot)Boekhold(at)et(dot)tudelft(dot)nl
Cc: hackers(at)postgreSQL(dot)org (PostgreSQL-development)
Subject: Re: indexing words
Date: 1998-03-31 15:28:29
Message-ID: 199803311528.KAA22505@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> 
> On Mon, 30 Mar 1998, Bruce Momjian wrote:
> 
> > With the CLUSTER change, are things faster.  Can you give me some times?
> > Can you supply some source to put into contrib/?
> 
> I did some timing after I clustered the data. However, I remember no 
> spectacular speedups. Maybe I remember wrong. I'll do the timings again 
> tonight and send them to you. I'd be happy to send sources to be put into 
> contrib, but I might need some help cleaning it up so ppl can actually 
> *use* it (an easy build, maybe some script to create the correct 
> tables/indices for a particular setup etc.)
> 
> I also think it would be nice if there was a function that could be 
> called to build the index *after* the main table is populated. Might be 
> much faster for large tables (but then again, it might not be).
> 
> Give me some time (end of the week?), I'm very busy with graduating right 
> now :)

Great.  Remember, we have an problem with the optimizer and referencing
two tables by different names, so that may be part of the problem with
performance.

At this point, I would be interested in just hearing about single and
two word search times.

The CLUSTER really speeded up things here.


-- 
Bruce Momjian                          |  830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us              |  Drexel Hill, Pennsylvania 19026
  +  If your life is a hard drive,     |  (610) 353-9879(w)
  +  Christ can be your backup.        |  (610) 853-3000(h)

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