On Tuesday 24 March 2009, Karl Lehenbauer <karl at flightaware.com> wrote:
> I propose that a better best practice is to test the DDL on the master
> *and every slave* in a BEGIN...ROLLBACK to make sure the DDL will
> succeed everywhere.  

A lot of DDL won't succeed on the slaves unless you invoke the slony table 
restore functions first, just FYI.

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