Log Message:
-----------
Fix an oversight in uninstall_isn.sql: must drop operator families explicitly.
Modified Files:
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pgsql/contrib/isn:
uninstall_isn.sql (r1.3 -> r1.4)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/isn/uninstall_isn.sql?r1=1.3&r2=1.4)