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From: Bruce Momjian <pgman@candle.pha.pa.us>
To: josh@agliodbs.com
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql@postgresql.org
Subject: Re: Expressional Indexes
Date: Wed, 22 Oct 2003 16:37:02 -0400 (EDT)
Message-ID: <200310222037.h9MKb2320189@candle.pha.pa.us> (raw)
In-Reply-To: <200310221322.26013.josh@agliodbs.com>

Josh Berkus wrote:
> Tom,
> 
> > Mainly that "expressional" is a made-up word.
> 
> So?   We're in the tech biz, Tom.   New-coined words are expected.  And that 
> way nobody will expect it to mean something else, since we made it up. 
> -- H. Dumpty, Q.E.D.
> 
> > I have been considering using "calculated index" or "computed index"
> > but dunno if that really conveys anything.
> 
> Well, "Expression Indexes" is the most accurate.  Or "Expression-Based 
> Indexes."

Computed index sound too much like there is computation done during the
index lookup, which there isn't, and it sounds like it would behave
differently from a normal index, which it doesn't.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073



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