Re: Can you combine text variable together to referenece a VIEW name ?

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От Tom Lane
Тема Re: Can you combine text variable together to referenece a VIEW name ?
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Msg-id 10337.1176151316@sss.pgh.pa.us
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Ответ на Re: Can you combine text variable together to referenece a VIEW name ?  (Raymond O'Donnell <rod@iol.ie>)
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"Raymond O'Donnell" <rod@iol.ie> writes:
> On 09/04/2007 00:36, Bigjim wrote:
>> I am trying to combine 2 text variable togther to form the name of a
>> VIEW.  example
>> SELECT * FROM ( 'april'||'may') ;

> I think you want to use EXECUTE from within a pl/pgsql function to
> construct and execute a query dynamically - have a look at this:
> http://www.postgresql.org/docs/8.2/static/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN

That's the only way to do it (modulo that you can do this in any of the
PLs not only plpgsql) ... but a more general point is that the OP is
trying to swim against the tide.  Almost certainly, rethinking the
design of those views is called for: try to merge them into one view.

            regards, tom lane

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