On 03/08/2013 10:55 AM, Michael Paquier wrote: > Also, as it is not mandatory for a unique index to be a constraint, I > think that we should block the creation of unique indexes too to avoid > any problems. Any suggestions? How much does the planner benefit from the implied constraint of a unique index? I almost wonder if it should be allowed at the cost of making the refresh of a matview that fails to comply an error.
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