From: Bruno Wolff III <bruno@wolff.to>
To: Rudi Starcevic <rudi@oasis.net.au>
Cc: pgsql-sql@postgresql.org
Subject: Re: Bitwise operation
Date: Mon, 30 Jun 2003 07:42:49 -0500
Message-ID: <20030630124249.GB26142@wolff.to> (raw)
In-Reply-To: <20030630122815.M76087@oasis.net.au>
References: <20030630122815.M76087@oasis.net.au>
On Mon, Jun 30, 2003 at 22:28:15 +1000,
Rudi Starcevic <rudi@oasis.net.au> wrote:
>
> Hi,
>
> I'm learning to use Postgresql's bitwise operator's as I'm interested
> in building super fast search's based on user selections in web forms.
>
> So far so good but I have just lost it a little so I thought I'd post.
> Please growl at me if I'm asking on the wrong list :-)
>
> I understand this:
>
> SELECT 111 & 11 = 11
>
> but not this
>
> SELECT 1111 & 111 = 71
>
> I was expecting the second example to be
>
> SELECT 1111 & 111 = 111
In the above examples the numbers are decimal values.
Maybe you wanted to do something like the following:
area=> select b'1111' & b'0111';
?column?
----------
0111
(1 row)
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, rudi@oasis.net.au
Subject: Re: Bitwise operation
In-Reply-To: <20030630124249.GB26142@wolff.to>
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