Prevent execution of enum_recv from SQL (Tom Lane)
The function was misdeclared, allowing a simple SQL command to crash the
server. In principle an attacker might be able to use it to examine the
contents of server memory. Our thanks to Sumit Soni (via Secunia SVCRP)
for reporting this issue. (CVE-2013-0255)
Fix multiple problems in detection of when a consistent database
state has been reached during WAL replay (Fujii Masao, Heikki
Linnakangas, Simon Riggs, Andres Freund)
Update minimum recovery point when truncating a relation file (Heikki
Linnakangas)
Once data has been discarded, it's no longer safe to stop recovery at
an earlier point in the timeline.
Fix recycling of WAL segments after changing recovery target timeline
(Heikki Linnakangas)
Fix missing cancellations in hot standby mode (Noah Misch, Simon Riggs)
The need to cancel conflicting hot-standby queries would sometimes be
missed, allowing those queries to see inconsistent data.
Prevent recovery pause feature from pausing before users can connect
(Tom Lane)
Fix SQL grammar to allow subscripting or field selection from a
sub-SELECT result (Tom Lane)
Fix performance problems with autovacuum truncation in busy workloads
(Jan Wieck)
Truncation of empty pages at the end of a table requires exclusive
lock, but autovacuum was coded to fail (and release the table lock)
when there are conflicting lock requests. Under load, it is easily
possible that truncation would never occur, resulting in table bloat.
Fix by performing a partial truncation, releasing the lock, then
attempting to re-acquire the lock and continue. This fix also greatly
reduces the average time before autovacuum releases the lock after a
conflicting request arrives.
Protect against race conditions when scanning
pg_tablespace (Stephen Frost, Tom Lane)
CREATE DATABASE and DROP DATABASE could
misbehave if there were concurrent updates of
pg_tablespace entries.
Prevent DROP OWNED from trying to drop whole databases or
tablespaces (Álvaro Herrera)
For safety, ownership of these objects must be reassigned, not dropped.
Fix error in vacuum_freeze_table_age
implementation (Andres Freund)
In installations that have existed for more than vacuum_freeze_min_age
transactions, this mistake prevented autovacuum from using partial-table
scans, so that a full-table scan would always happen instead.
Prevent misbehavior when a RowExpr or XmlExpr
is parse-analyzed twice (Andres Freund, Tom Lane)
This mistake could be user-visible in contexts such as
CREATE TABLE LIKE INCLUDING INDEXES.
Improve defenses against integer overflow in hashtable sizing
calculations (Jeff Davis)
Fix failure to ignore leftover temporary tables after a server crash
(Tom Lane)
Reject out-of-range dates in to_date() (Hitoshi Harada)
Fix pg_extension_config_dump() to handle
extension-update cases properly (Tom Lane)
This function will now replace any existing entry for the target
table, making it usable in extension update scripts.
Fix PL/Python's handling of functions used as triggers on multiple
tables (Andres Freund)
Ensure that non-ASCII prompt strings are translated to the correct
code page on Windows (Alexander Law, Noah Misch)
This bug affected psql and some other client programs.
Fix possible crash in psql's \? command
when not connected to a database (Meng Qingzhong)
Fix possible error if a relation file is removed while
pg_basebackup is running (Heikki Linnakangas)
Make pg_dump exclude data of unlogged tables when
running on a hot-standby server (Magnus Hagander)
This would fail anyway because the data is not available on the standby
server, so it seems most convenient to assume
--no-unlogged-table-data automatically.
Fix pg_upgrade to deal with invalid indexes safely
(Bruce Momjian)
Fix one-byte buffer overrun in libpq's
PQprintTuples (Xi Wang)
This ancient function is not used anywhere by
PostgreSQL itself, but it might still be used by some
client code.
Make ecpglib use translated messages properly
(Chen Huajun)
Properly install ecpg_compat and
pgtypes libraries on MSVC (Jiang Guiqing)
Include our version of isinf() in
libecpg if it's not provided by the system
(Jiang Guiqing)
Rearrange configure's tests for supplied functions so it is not
fooled by bogus exports from libedit/libreadline (Christoph Berg)
Ensure Windows build number increases over time (Magnus Hagander)
Make pgxs build executables with the right
.exe suffix when cross-compiling for Windows
(Zoltan Boszormenyi)
Add new timezone abbreviation FET (Tom Lane)
This is now used in some eastern-European time zones.