Re: Extracting hostname from URI column

From: Paul Lambert <paul(dot)lambert(at)autoledgers(dot)com(dot)au>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Extracting hostname from URI column
Date: 2007-09-12 04:03:07
Message-ID: 46E764FB.2070602@autoledgers.com.au
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Paul Lambert wrote:
>
> Just use distinct...
>
> test=# select distinct count(*),substring( href from '.*://([^/]*)' ) as
> domain from url group by domain order by domain;

OK so distinct was redundant there... it gives the same results without it.

AutoDRS=# select count(*) as occurances,substring( href from
'.*://([^/]*)' ) as domain from url group by domain order by occurances
desc,domain;
occurances | domain
------------+--------------------------
11 | www.google.com
4 | dictionary.reference.com
4 | texturizer.net
3 | devedge.netscape.com
3 | groups.google.com
2 | forums.mozillazine.org
2 | www.mozillazine.org
(7 rows)

--
Paul Lambert
Database Administrator
AutoLedgers

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