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Date: Mon, 21 Apr 2003 14:50:20 -0700
From: Aditya <aditya@grot.org>
To: pgsql-sql@postgresql.org
Subject: converting from bigint to bit to use bitwise operators
Message-ID: <20030421215020.GA71612@mighty.grot.org>
References: <20030418191128.89A67476363@postgresql.org>
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For historical reasons, I have IPv4 addresses stored as bigint and I would
like to convert them to dot-quad (ie. A.B.C.D) in a select. This is how I
would normally do it (the remotehost column is the IP address as a bigint):

select
  ((remotehost::bit varying(32) >> 24) & 11111111) || '.' ||
  ((remotehost::bit varying(32) & 11111100) >> 16) || '.' ||
  ((remotehost::bit varying(32) & 11110000) >>  8) || '.' ||
  ((remotehost::bit varying(32) & 11000000)) as ip,
  httpquery
from
 weblogs
;

however this complains:

  ERROR:  Cannot cast type 'bigint' to 'bit varying'

hints?

Thanks,
Adi