On Wed, Sep 29, 2010 at 11:56 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > I'm not sure that fixing this case is worth the amount of work it'd > take. How often do you drop just one member of a commutator pair?
I found the issue when an user tries to write a "safe" installer script under "DROP before CREATE" coding rule: 1. DROP OPERATOR IF EXISTS <<< ... ; 2. CREATE OPERATOR <<< (... COMMUTATOR >>>); 3. DROP OPERATOR IF EXISTS >>> ... ; 4. CREATE OPERATOR >>> (... COMMUTATOR <<<); 3 drops catalog-only >>> added at 2, and 4 adds a operator that has a different oid from <<<'s commutator. The operator <<< becomes broken state in system catalog. Anyway, it must be a rare case, and we can just avoid the usage. -- Itagaki Takahiro -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
