Re: Error with DISTINCT and AS keywords

On Wed, 10 Jul 2002, Andreas Schlegel wrote:

> Hi,
>
> I need some help to let this sql statement run with Postgres 7.2.1
>
> Doesn't work:
> select DISTINCT tnr, titel, 'TEST' AS testcol from tTitel;
> ERROR: Unable to identify an ordering operator '<' for type 'unknown'
> Use an explicit ordering operator or modify the query

Do it as

select DISTINCT tnr, titel, 'TEST'::text AS testcol from tTitel;

>
> If I remove the DISTINCT keyword it works:
> select tnr, titel, 'TEST' AS testcol from tTitel;
>
>
>
> Greetings,
> Andreas
>
>
>
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--
Achilleus Mantzios
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Dynacom Tankers Mngmt
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