On Sat, Jan 4, 2014 at 1:00 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I would suggest addressing Robert's concern about lack of error checking
> by refusing to allow a custom reloption to be set unless the relevant
> extension is loaded and checks it. Unlike the postgresql.conf problem,
> I don't see any very good use-case for allowing an unchecked ALTER TABLE
> to occur.
How do you plan to resolve the associated dump/restore hazard? AIUI,
that's why we allow people define any old this.that GUC that they want
without checking it - because the relevant shared library might not be
loaded at the time of definition, but only by time of use.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company