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Re: compare table names

From: Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Cc: Tony Capobianco <tcapobianco(at)prospectiv(dot)com>
Subject: Re: compare table names
Date: 2012-01-09 16:19:47
Message-ID: 201201090819.48041.adrian.klaver@gmail.com (view raw or flat)
Thread:
Lists: pgsql-sql
On Monday, January 09, 2012 8:12:18 am Tony Capobianco wrote:
> I have these 3 tables:
> 
>      tablename
> --------------------
>  tmp_staging0109
>  tmp_staging1229
>  tmp_staging0108
> 
> 
> I'd like this query:
> 
> select tablename from pg_tables where tablename like 'tmp_staging%' and
> tablename < 'tmp_staging1230';
> 
> To return this result:
> 
>      tablename
> --------------------
>  tmp_staging1229
> 
> However, I'm receiving:
> 
>      tablename
> --------------------
>  tmp_staging0109
>  tmp_staging1229
>  tmp_staging0108
> 
> How can I write this correctly?

As far as I can tell it is correct. 0108,0109 and 1229 are all less than 1230.  
What happens if you do?:

select tablename from pg_tables where tablename like 'tmp_staging%' and 
tablename < 'tmp_staging1230' and tablename > 'tmp_staging1228;

> 
> Thanks.
> Tony

-- 
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com

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