On 9/19/16 9:42 AM, on...@citusdata.com wrote:
> Though it is possible to add EXCLUDE CONSTRAINTs via ALTER TABLE as appears
> here
> http://thoughts.davisjeff.com/2010/09/25/exclusion-constraints-are-generalized-sql-unique/
> we could not see it on the related doc here
> https://www.postgresql.org/docs/9.5/static/sql-altertable.html

The ALTER TABLE page does not mention any specific constraint types,
instead referring to the CREATE TABLE page.  So this is not an omission
of exclude constraints, but an intentional way to reduce duplication.

Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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