On Thu, Mar 17, 2011 at 5:32 PM, Robert Haas <robertmh...@gmail.com> wrote: > On Thu, Mar 17, 2011 at 5:29 PM, Andrew Dunstan <and...@dunslane.net> wrote: >>> Is this really intended? >> >> I sure hope not. > > That's a bug. Not sure if it's a psql bug or a backend bug, but it's > definitely a bug.
It's a backend bug. Prior to Simon's patch, there was an existing skip_validation flag in the Constraint node that indicated whether or not a validation pass was necessary - in a newly created table, for example, we know that it's NOT necessary, because the table can't contain any rows (and therefore there can't be any rows that violate the constraint). The patch tries to make the very same flag indicate whether the user wants the constraint to be added with the NOT VALID attribute, which of course falls over because the Boolean only has two values and there are three cases (validate it, don't validate it but do mark it valid because the table is guaranteed to be empty, don't validate it and mark it not valid). -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers