Re: View using dblink fails if not able to make connection - Mailing list pgsql-general

From George Weaver
Subject Re: View using dblink fails if not able to make connection
Date
Msg-id 964AD18AD25241BFA778E102A5BD0D17@D420
Whole thread Raw
In response to View using dblink fails if not able to make connection  ("George Weaver" <gweaver@shaw.ca>)
List pgsql-general

----- Original Message -----
From: Igor Romanchenko

>On Fri, Nov 9, 2012 at 9:21 PM, George Weaver <gweaver@shaw.ca> wrote:

>>Hi Everyone,

>>I have a view made up of a local query unioned with a view comprised of a dblink query.

>>If the dblink query cannot establish a connection, I get the "could not connect to server" error and the whole view fails.

>>Setting fail_on_error to false does not work in this situation.

>>Is there any way to test the connection inside the view when the view is called and either return the whole view or just the local component if a dblink connection cannot be made?   

>>Thanks,
>>George

>Hi.
>You can put you dblink query into PL/pgSQL function that:
>1) Will return dblink result, if no errors occurred.
>2) Will return no rows, if error occured

>Then just use this function in the union.
 
Hi Igor,
 
I'll look at that!
 
Thanks,
George

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