Log Message:
-----------
Make contrib/isn pass the opr_sanity sanity checks: add missing
commutator operators, and mark hash-opclass members as oprcanhash.
This is a pretty ugly, brute-force solution, but it seems that getting
rid of all these redundant-looking operators would require some tweaks
in the core operator-resolution code to behave nicely, and I'm not
willing to risk that just before RC1.
Modified Files:
--------------
pgsql/contrib/isn:
isn.sql.in (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/isn/isn.sql.in.diff?r1=1.3&r2=1.4)
