* Improve handling of URLs in headline() function
* Improve handling of overlength headlines in headline() function
* Prevent possible Assert failure or misconversion if an encoding
conversion is created with the wrong conversion function for the
specified pair of encodings
* Fix possible Assert failure if a statement executed in PL/pgSQL is
rewritten into another kind of statement, for example if an
"INSERT" is rewritten into an "UPDATE"
* Ensure that a snapshot is available to datatype input functions
* Make it safer for SPI-using functions to be used within datatype
I/O; in particular, to be used in domain check constraints
* Avoid unnecessary locking of small tables in "VACUUM"
* Fix a problem that made UPDATE RETURNING tableoid return zero
instead of the correct OID
* Fix planner misestimation of selectivity when transitive equality
is applied to an outer-join clause
This could result in bad plans for queries like ... from a left
join b on a.a1 = b.b1 where a.a1 = 42 ...
* Improve optimizer's handling of long IN lists
This change avoids wasting large amounts of time on such lists when
constraint exclusion is enabled.
* Ensure that the contents of a holdable cursor don't depend on the
contents of TOAST tables
* Fix memory leak when a set-returning function is terminated without
reading its whole result
* Fix "contrib/dblink"'s dblink_get_result(text,bool) function
* Fix possible garbage output from "contrib/sslinfo" functions
* Fix configure script to properly report failure when unable to
obtain linkage information for PL/Perl
* Make all documentation reference pgsql-bugs and/or pgsql-hackers as
appropriate, instead of the now-decommissioned pgsql-ports and
pgsql-patches mailing lists
* Update time zone data files to tzdata release 2009a (for Kathmandu
and historical DST corrections in Switzerland, Cuba)
* Fix GiST index corruption due to marking the wrong index entry
"dead" after a deletion.
This would result in index searches failing to find rows they
should have found.
* Fix backend crash when the client encoding cannot represent a
localized error message.
We have addressed similar issues before, but it would still fail if
the "character has no equivalent" message itself couldn't be
converted. The fix is to disable localization and send the plain
ASCII error message when we detect such a situation.
* Fix possible crash when deeply nested functions are invoked from a
trigger.
* Improve optimization of "expression" IN ("expression-list") queries.
Cases in which there are query variables on the right-hand side had
been handled less efficiently in 8.2.x and 8.3.x than in prior
versions. The fix restores 8.1 behavior for such cases.
* Fix mis-expansion of rule queries when a sub-SELECT appears in a
function call in FROM, a multi-row VALUES list, or a RETURNING list.
* Fix memory leak during rescan of a hashed aggregation plan.
* Ensure an error is reported when a newly-defined PL/pgSQL trigger
function is invoked as a normal function.
* Prevent possible collision of relfilenode numbers when moving a
table to another tablespace with "ALTER SET TABLESPACE".
The command tried to re-use the existing filename, instead of
picking one that is known unused in the destination directory.
* Fix incorrect tsearch2 headline generation when single query item
matches first word of text.
* Fix improper display of fractional seconds in interval values when
using a non-ISO datestyle in an "--enable-integer-datetimes" build.
* Ensure SPI_getvalue and SPI_getbinval behave correctly when the
passed tuple and tuple descriptor have different numbers of columns.
* Fix ecpg's parsing of "CREATE ROLE".
* Fix recent breakage of pg_ctl restart.
* Ensure "pg_control" is opened in binary mode.
pg_controldata and pg_resetxlog did this incorrectly, and so could
fail on Windows.
* Update time zone data files to tzdata release 2008i (for DST law
changes in Argentina, Brazil, Mauritius, Syria)
* 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.
* Fix character string comparison for Windows locales that consider
different character combinations as equal
* Repair potential deadlock between concurrent "VACUUM FULL"
operations on different system catalogs
* Fix longstanding "LISTEN"/"NOTIFY" race condition
* Disallow "LISTEN" and "UNLISTEN" within a prepared transaction
* Disallow dropping a temporary table within a prepared transaction
* Fix rare crash when an error occurs during a query using a hash
index
* Fix memory leaks in certain usages of set-returning functions
* Fix input of datetime values for February 29 in years BC
* Fix "unrecognized node type" error in some variants of "ALTER
OWNER"
* Ensure pg_stat_activity.waiting flag is cleared when a lock wait is
aborted
* Fix handling of process permissions on Windows Vista
* More...
* Prevent index corruption when a transaction inserts rows and then
aborts close to the end of a concurrent "VACUUM" on the same table
* Fix ALTER DOMAIN ADD CONSTRAINT for cases involving domains over
domains
* Make "CREATE DOMAIN ... DEFAULT NULL" work properly
* Fix some planner problems with outer joins, notably poor size
estimation for t1 LEFT JOIN t2 WHERE t2.col IS NULL
* Allow the interval data type to accept input consisting only of
milliseconds or microseconds
* Allow timezone name to appear before the year in timestamp input
* Fixes for GIN indexes used by "/contrib/tsearch2"
* Speed up rtree index insertion
* Fix excessive logging of SSL error messages
* Fix logging so that log messages are never interleaved when using
the syslogger process
* Fix crash when log_min_error_statement logging runs out of memory
* Fix incorrect handling of some foreign-key corner cases
* Fix stddev_pop(numeric) and var_pop(numeric)
* Prevent "REINDEX" and "CLUSTER" from failing due to attempting to
process temporary tables of other sessions
* Update the time zone database rules, particularly New Zealand's
upcoming changes
* Windows socket and semaphore improvements
* Make "pg_ctl -w" work properly in Windows service mode
* Fix memory allocation bug when using MIT Kerberos on Windows
* Suppress timezone name (%Z) in log timestamps on Windows because of
possible encoding mismatches
* Require non-superusers who use "/contrib/dblink" to use only
password authentication, as a security measure
* Restrict "/contrib/pgstattuple" functions to superusers, for
security reasons
* Do not let "/contrib/intarray" try to make its GIN opclass the
default (this caused problems at dump/restore)
the owner of all installed files is a non-root user. This change
affects most packages that require special users or groups by making
them use the specified unprivileged user and group instead.
(1) Add two new variables PKG_GROUPS_VARS and PKG_USERS_VARS to
unprivileged.mk. These two variables are lists of other bmake
variables that define package-specific users and groups. Packages
that have user-settable variables for users and groups, e.g. apache
and APACHE_{USER,GROUP}, courier-mta and COURIER_{USER,GROUP},
etc., should list these variables in PKG_USERS_VARS and PKG_GROUPS_VARS
so that unprivileged.mk can know to set them to ${UNPRIVILEGED_USER}
and ${UNPRIVILEGED_GROUP}.
(2) Modify packages to use PKG_GROUPS_VARS and PKG_USERS_VARS.
* Support explicit placement of the temporary-table schema within
search_path, and disable searching it for functions and operators
* Fix shared_preload_libraries for Windows by forcing reload in each
backend
* Fix to_char() so it properly upper/lower cases localized day or
month names
* "/contrib/tsearch2" crash fixes
* Require "COMMIT PREPARED" to be executed in the same database as
the transaction was prepared in
* Allow "pg_dump" to do binary backups larger than two gigabytes on
Windows
* New traditional (Taiwan) Chinese FAQ
* Prevent the statistics collector from writing to disk too
frequently
* Fix potential-data-corruption bug in how "VACUUM FULL" handles
"UPDATE" chains
* Fix bug in domains that use array types
* Fix "pg_dump" so it can dump a serial column's sequence using "-t"
when not also dumping the owning table
* Planner fixes, including improving outer join and bitmap scan
selection logic
* Fix possible wrong answers or crash when a PL/pgSQL function tries
to RETURN from within an EXCEPTION block
* Fix PANIC during enlargement of a hash index
* Fix POSIX-style timezone specs to follow new USA DST rules
* Query language enhancements including "INSERT/UPDATE/DELETE
RETURNING", multirow VALUES lists, and optional target-table alias
in "UPDATE"/"DELETE"
* Index creation without blocking concurrent
"INSERT"/"UPDATE"/"DELETE" operations
* Many query optimization improvements, including support for
reordering outer joins
* Improved sorting performance with lower memory usage
* More efficient locking with better concurrency
* More efficient vacuuming
* Easier administration of warm standby servers
* New FILLFACTOR support for tables and indexes
* Monitoring, logging, and performance tuning additions
* More control over creating and dropping objects
* Table inheritance relationships can be defined for and removed from
pre-existing tables
* "COPY TO" can copy the output of an arbitrary "SELECT" statement
* Array improvements, including nulls in arrays
* Aggregate-function improvements, including multiple-input
aggregates and SQL:2003 statistical functions
* Many "contrib/" improvements
