From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Rajesh Kumar Mallah. <mallah@trade-india.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Difference between is true and = 't' in boolean feild. & bitmap
Date: Sat, 17 Aug 2002 07:21:20 -0400 (EDT)
Message-ID: <200208171121.g7HBLKL18248@candle.pha.pa.us> (raw)
In-Reply-To: <200208171102.58808.mallah@trade-india.com>
Rajesh Kumar Mallah. wrote:
>
>
> Any can anyone explain me why in a query of a boolean feild
> "is ture" does not indexes where as = 't' does? is "is true"
> not a more standard SQL than " = 't' ".
Not sure.
> Also is there any working implementation of BITMAP INDEXES in
> postgresql as found in ORACLE?
We have discussed them and see a few uses for them. See the TODO list
under Performance and there is a link to some emails discussing it.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
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To: pgsql-sql@postgresql.org
Cc: pgman@candle.pha.pa.us, mallah@trade-india.com
Subject: Re: Difference between is true and = 't' in boolean feild. & bitmap
In-Reply-To: <200208171121.g7HBLKL18248@candle.pha.pa.us>
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