Re: cli in sql?

From: "Greg Sabino Mullane" <greg(at)turnstep(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Cc: fbax(at)sympatico(dot)ca
Subject: Re: cli in sql?
Date: 2005-11-11 20:03:14
Message-ID: 1bb9fe33ef04362819dae06d5326b2ac@biglumber.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-sql


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
NotDashEscaped: You need GnuPG to verify this message

> If my database has column containing a filename, can I use sql to present
> this filename and datemodified (as output from 'ls -l' or from mtime()
> fuction) or *must* it be done after the query in interface such as php or perl?

Neither. You can do it inside the db with a "pl" language such as plperlu:

CREATE OR REPLACE FUNCTION filemodtime(TEXT) RETURNS TEXT LANGUAGE plperlu AS
$$
my $filename = shift;
-e $filename or elog(ERROR, qq{The file "$filename" does not exist\n});
return localtime($^T - (60*60*24* -M _));
$$;

SELECT filemodtime('/var/log/messages');
SELECT filemodtime('/dark/matter');

--
Greg Sabino Mullane greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 200511111457
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
-----BEGIN PGP SIGNATURE-----

iD8DBQFDdPkRvJuQZxSWSsgRAufUAJ9f4/IaYrJDMi3Yg74x0tkN4tmUcQCgmlu9
wAkqRHgYQY9DtdIIfH/g7xY=
=n/J7
-----END PGP SIGNATURE-----

In response to

Responses

Browse pgsql-sql by date

  From Date Subject
Next Message Frank Bax 2005-11-11 21:31:35 Re: cli in sql?
Previous Message Warren Murray 2005-11-11 18:26:15 Export to XML