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From: Jim Nasby <Jim.Nasby@BlueTreble.com>
To: Gerardo Herzig <gherzig@fmed.uba.ar>
To: Suresh Raja <suresh.rajaabc@gmail.com>
Cc: pgsql-general@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] check data for datatype
Date: Tue, 7 Apr 2015 16:31:35 -0500
Message-ID: <55244CB7.50901@BlueTreble.com> (raw)
In-Reply-To: <1981538304.72853.1428425986418.JavaMail.root@fmed.uba.ar>
References: <1981538304.72853.1428425986418.JavaMail.root@fmed.uba.ar>
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On 4/7/15 11:59 AM, Gerardo Herzig wrote:
> I guess that could need something like (untested)
>
> delete from bigtable text_column !~ '^[0-9][0-9]*$';

Won't work for...

.1
-1
1.1e+5
...

Really you need to do something like what Jerry suggested if you want 
this to be robust.
-- 
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com


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