Re: How to query by column names

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От Richard Ray
Тема Re: How to query by column names
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Msg-id Pine.LNX.4.64.0701221756520.8787@rray.drdc.mstc.ms.gov
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Ответ на Re: How to query by column names  (Jeff Frost <jeff@frostconsultingllc.com>)
Ответы Re: How to query by column names  (Jeff Frost <jeff@frostconsultingllc.com>)
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This is not exactly what I need
I want to return the data in t1

On Mon, 22 Jan 2007, Jeff Frost wrote:

> I think this is what you're looking for Richard:
>
> SELECT attname FROM pg_attribute pa, pg_class pc
>  WHERE pc.relname = 't1'
>    AND pa.attrelid = pc.relfilenode
>    AND pa.attisdropped IS FALSE
>    AND pa.attnum > 0;
>
> Let me know if it doesn't do what you intended.
>
> On Mon, 22 Jan 2007, Richard Ray wrote:
>
>> This may be a simple but can I create a query such as
>> 
>> select (select attname from pg_attribute where attrelid = (select 
>> relfilenode from pg_class where relname = 't1') and attisdropped = false 
>> and attnum > 0) from t1;
>> 
>> I get
>> ERROR:  more than one row returned by a subquery used as an expression
>> 
>> Thanks
>> Richard
>> 
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>
> -- 
> Jeff Frost, Owner     <jeff@frostconsultingllc.com>
> Frost Consulting, LLC     http://www.frostconsultingllc.com/
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