From: Andrej Ricnik-Bay <andrej.groups@gmail.com>
To: Paul Lambert <paul.lambert@autoledgers.com.au>
Cc: sql pgsql <pgsql-sql@postgresql.org>
Subject: Re: Extracting hostname from URI column
Date: Wed, 12 Sep 2007 14:19:12 +1200
Message-ID: <b35603930709111919y475cd202gfc70d52a2db508dc@mail.gmail.com> (raw)
In-Reply-To: <46E73D1C.4020009@autoledgers.com.au>
References: <335491.75226.qm@web54303.mail.re2.yahoo.com>
<46E73D1C.4020009@autoledgers.com.au>
On 9/12/07, Paul Lambert <paul.lambert@autoledgers.com.au> wrote:
> > substring( href from '.*://\([^/]*)' );
> Ok, your solution looks better than mine... but I have no idea how to
> interpret that, time to consult some manuals.
Plain regex.... The key are the parenthesis () ...
basically it will omit ANYTHING + two slashes at the beginning
of a string. Then it will match everything BUT a slash, and as
much of that as possible since regex are greedy by default
(hence the host name he was looking for) ... and everything
AFTER a slash will be omitted.
Cheers,
Andrej
--
Please don't top post, and don't use HTML e-Mail :} Make your quotes concise.
http://www.american.edu/econ/notes/htmlmail.htm
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: andrej.groups@gmail.com, paul.lambert@autoledgers.com.au
Subject: Re: Extracting hostname from URI column
In-Reply-To: <b35603930709111919y475cd202gfc70d52a2db508dc@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox