Re: [GENERAL] View using dblink fails if not able to make connection
- Original Message - From: Igor Romanchenko >On Fri, Nov 9, 2012 at 9:21 PM, George Weaver 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
Re: [GENERAL] View using dblink fails if not able to make connection
On Fri, Nov 9, 2012 at 9:21 PM, George Weaver 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.
