The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/9.5/static/sql-altertable.html Description: Minor documentation feedback: 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
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