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From: David Johnston <polobo@yahoo.com>
To: pgsql-sql@postgresql.org
Subject: Re: postgres subfunction return error
Date: Wed, 25 Sep 2013 16:19:27 -0700 (PDT)
Message-ID: <1380151167590-5772408.post@n5.nabble.com> (raw)
In-Reply-To: <1380150677632-5772407.post@n5.nabble.com>
References: <1380150677632-5772407.post@n5.nabble.com>
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jonathansfl wrote
> greetings. I'm trying to write a function that acts like a switchboard,
> calling other functions depending on incoming parameters.
> I'm getting error: query has no destination for result data
> 
> 
>     	SELECT * FROM dev.pr_test_subfunction(SWV_Action); 

In pl/pgsql if you do not use an "INTO" clause on a select statement you
must replace the "SELECT" with "PERFORM".  Failing to do so results in the
error you are seeing.  In this case your calls to the sub-function do not
magically populate the parent function variables.  You must manually map the
output of the sub-function call query onto the parent variables.

David J.




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