* Make pg_get_ruledef() parenthesize negative constants (Tom)
Before this fix, a negative constant in a view or rule might be
dumped as, say, -42::integer, which is subtly incorrect: it should
be (-42)::integer due to operator precedence rules. Usually this
would make little difference, but it could interact with another
recent patch to cause PostgreSQL to reject what had been a valid
"SELECT DISTINCT" view query. Since this could result in pg_dump
output failing to reload, it is being treated as a high-priority
fix. The only released versions in which dump output is actually
incorrect are 8.3.1 and 8.2.7.
* Make "ALTER AGGREGATE ... OWNER TO" update pg_shdepend (Tom)
This oversight could lead to problems if the aggregate was later
involved in a "DROP OWNED" or "REASSIGN OWNED" operation.
* Improve handling of getaddrinfo() on AIX
This fixes a problem with starting the statistics collector, among
other things.
* Fix pg_restore to handle a tar-format backup that contains large
objects (blobs) with comments
* Fix "failed to re-find parent key" errors in "VACUUM"
* Clean out "pg_internal.init" cache files during server restart
This avoids a hazard that the cache files might contain stale data
after PITR recovery.
* Fix race condition for truncation of a large relation across a
gigabyte boundary by "VACUUM"
* Fix bug causing needless deadlock errors on row-level locks
* Fix bugs affecting multi-gigabyte hash indexes
* Fix possible deadlock in Windows signal handling
* Fix error when constructing an ARRAY[] made up of multiple empty
elements
* Fix ecpg memory leak during connection
* Fix for Darwin (OS X) compilation
* to_number() and to_char(numeric) are now STABLE, not IMMUTABLE, for
new initdb installs
This is because lc_numeric can potentially change the output of
these functions.
* Improve index usage of regular expressions that use parentheses
This improves psql \d performance also.
* Update timezone database
This affects Australian and Canadian daylight-savings rules in
particular.
