Re: How to query by column names

Perhaps I should have asked this earlier.  What information are you trying to 
extract?

On Mon, 22 Jan 2007, Richard Ray wrote:

> 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/
>> Phone: 650-780-7908    FAX: 650-649-1954
>> 
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>
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>

-- 
Jeff Frost, Owner     <jeff@frostconsultingllc.com>
Frost Consulting, LLC     http://www.frostconsultingllc.com/
Phone: 650-780-7908    FAX: 650-649-1954