Fix catalog cache invalidation after a VACUUM FULL or
CLUSTER on a system catalog (Tom Lane)
In some cases the relocation of a system catalog row to another place
would not be recognized by concurrent server processes, allowing catalog
corruption to occur if they then tried to update that row. The
worst-case outcome could be as bad as complete loss of a table.
Fix incorrect order of operations during sinval reset processing,
and ensure that TOAST OIDs are preserved in system catalogs (Tom
Lane)
These mistakes could lead to transient failures after a VACUUM
FULL or CLUSTER on a system catalog.
Fix bugs in indexing of in-doubt HOT-updated tuples (Tom Lane)
These bugs could result in index corruption after reindexing a system
catalog. They are not believed to affect user indexes.
Fix multiple bugs in GiST index page split processing (Heikki
Linnakangas)
The probability of occurrence was low, but these could lead to index
corruption.
Fix possible buffer overrun in tsvector_concat()
(Tom Lane)
The function could underestimate the amount of memory needed for its
result, leading to server crashes.
Fix crash in xml_recv when processing a
"standalone" parameter (Tom Lane)
Make pg_options_to_table return NULL for an option with no
value (Tom Lane)
Previously such cases would result in a server crash.
Avoid possibly accessing off the end of memory in ANALYZE
and in SJIS-2004 encoding conversion (Noah Misch)
This fixes some very-low-probability server crash scenarios.
Protect pg_stat_reset_shared() against NULL input (Magnus
Hagander)
Fix possible failure when a recovery conflict deadlock is detected
within a sub-transaction (Tom Lane)
Avoid spurious conflicts while recycling btree index pages during hot
standby (Noah Misch, Simon Riggs)
Shut down WAL receiver if it's still running at end of recovery (Heikki
Linnakangas)
The postmaster formerly panicked in this situation, but it's actually a
legitimate case.
Fix race condition in relcache init file invalidation (Tom Lane)
There was a window wherein a new backend process could read a stale init
file but miss the inval messages that would tell it the data is stale.
The result would be bizarre failures in catalog accesses, typically
"could not read block 0 in file ..." later during startup.
Fix memory leak at end of a GiST index scan (Tom Lane)
Commands that perform many separate GiST index scans, such as
verification of a new GiST-based exclusion constraint on a table
already containing many rows, could transiently require large amounts of
memory due to this leak.
Fix memory leak when encoding conversion has to be done on incoming
command strings and LISTEN is active (Tom Lane)
Fix incorrect memory accounting (leading to possible memory bloat) in
tuplestores supporting holdable cursors and plpgsql's RETURN
NEXT command (Tom Lane)
Fix trigger WHEN conditions when both BEFORE and
AFTER triggers exist (Tom Lane)
Evaluation of WHEN conditions for AFTER ROW
UPDATE triggers could crash if there had been a BEFORE
ROW trigger fired for the same update.
Fix performance problem when constructing a large, lossy bitmap
(Tom Lane)
Fix join selectivity estimation for unique columns (Tom Lane)
This fixes an erroneous planner heuristic that could lead to poor
estimates of the result size of a join.
Fix nested PlaceHolderVar expressions that appear only in sub-select
target lists (Tom Lane)
This mistake could result in outputs of an outer join incorrectly
appearing as NULL.
Allow the planner to assume that empty parent tables really are empty
(Tom Lane)
Normally an empty table is assumed to have a certain minimum size for
planning purposes; but this heuristic seems to do more harm than good
for the parent table of an inheritance hierarchy, which often is
permanently empty.
Allow nested EXISTS queries to be optimized properly (Tom
Lane)
Fix array- and path-creating functions to ensure padding bytes are
zeroes (Tom Lane)
This avoids some situations where the planner will think that
semantically-equal constants are not equal, resulting in poor
optimization.
Fix EXPLAIN to handle gating Result nodes within
inner-indexscan subplans (Tom Lane)
The usual symptom of this oversight was "bogus varno" errors.
Fix btree preprocessing of indexedcol IS
NULL conditions (Dean Rasheed)
Such a condition is unsatisfiable if combined with any other type of
btree-indexable condition on the same index column. The case was
handled incorrectly in 9.0.0 and later, leading to query output where
there should be none.
Work around gcc 4.6.0 bug that breaks WAL replay (Tom Lane)
This could lead to loss of committed transactions after a server crash.
Fix dump bug for VALUES in a view (Tom Lane)
Disallow SELECT FOR UPDATE/SHARE on sequences (Tom Lane)
This operation doesn't work as expected and can lead to failures.
Fix VACUUM so that it always updates
pg_class.reltuples/relpages (Tom
Lane)
This fixes some scenarios where autovacuum could make increasingly poor
decisions about when to vacuum tables.
Defend against integer overflow when computing size of a hash table (Tom
Lane)
Fix cases where CLUSTER might attempt to access
already-removed TOAST data (Tom Lane)
Fix premature timeout failures during initial authentication transaction
(Tom Lane)
Fix portability bugs in use of credentials control messages for
"peer" authentication (Tom Lane)
Fix SSPI login when multiple roundtrips are required (Ahmed Shinwari,
Magnus Hagander)
The typical symptom of this problem was "The function requested is
not supported" errors during SSPI login.
Fix failure when adding a new variable of a custom variable class to
postgresql.conf (Tom Lane)
Throw an error if pg_hba.conf contains hostssl
but SSL is disabled (Tom Lane)
This was concluded to be more user-friendly than the previous behavior
of silently ignoring such lines.
Fix failure when DROP OWNED BY attempts to remove default
privileges on sequences (Shigeru Hanada)
Fix typo in pg_srand48 seed initialization (Andres Freund)
This led to failure to use all bits of the provided seed. This function
is not used on most platforms (only those without srandom),
and the potential security exposure from a less-random-than-expected
seed seems minimal in any case.
Avoid integer overflow when the sum of LIMIT and
OFFSET values exceeds 2^63 (Heikki Linnakangas)
Add overflow checks to int4 and int8 versions of
generate_series() (Robert Haas)
Fix trailing-zero removal in to_char() (Marti Raudsepp)
In a format with FM and no digit positions
after the decimal point, zeroes to the left of the decimal point could
be removed incorrectly.
Fix pg_size_pretty() to avoid overflow for inputs close to
2^63 (Tom Lane)
Weaken plpgsql's check for typmod matching in record values (Tom Lane)
An overly enthusiastic check could lead to discarding length modifiers
that should have been kept.
Correctly handle quotes in locale names during initdb
(Heikki Linnakangas)
The case can arise with some Windows locales, such as "People's
Republic of China".
In pg_upgrade, avoid dumping orphaned temporary tables
(Bruce Momjian)
This prevents situations wherein table OID assignments could get out of
sync between old and new installations.
Fix pg_upgrade to preserve toast tables' relfrozenxids
during an upgrade from 8.3 (Bruce Momjian)
Failure to do this could lead to pg_clog files being
removed too soon after the upgrade.
In pg_upgrade, fix the -l (log) option to
work on Windows (Bruce Momjian)
In pg_ctl, support silent mode for service registrations
on Windows (MauMau)
Fix psql's counting of script file line numbers during
COPY from a different file (Tom Lane)
Fix pg_restore's direct-to-database mode for
standard_conforming_strings (Tom Lane)
pg_restore could emit incorrect commands when restoring
directly to a database server from an archive file that had been made
with standard_conforming_strings set to on.
Be more user-friendly about unsupported cases for parallel
pg_restore (Tom Lane)
This change ensures that such cases are detected and reported before
any restore actions have been taken.
Fix write-past-buffer-end and memory leak in libpq's
LDAP service lookup code (Albe Laurenz)
In libpq, avoid failures when using nonblocking I/O
and an SSL connection (Martin Pihlak, Tom Lane)
Improve libpq's handling of failures during connection startup
(Tom Lane)
In particular, the response to a server report of fork()
failure during SSL connection startup is now saner.
Improve libpq's error reporting for SSL failures (Tom
Lane)
Fix PQsetvalue() to avoid possible crash when adding a new
tuple to a PGresult originally obtained from a server
query (Andrew Chernow)
Make ecpglib write double values with 15 digits
precision (Akira Kurosawa)
In ecpglib, be sure LC_NUMERIC setting is
restored after an error (Michael Meskes)
Apply upstream fix for blowfish signed-character bug (CVE-2011-2483)
(Tom Lane)
contrib/pg_crypto's blowfish encryption code could give
wrong results on platforms where char is signed (which is most),
leading to encrypted passwords being weaker than they should be.
Fix memory leak in contrib/seg (Heikki Linnakangas)
Fix pgstatindex() to give consistent results for empty
indexes (Tom Lane)
Allow building with perl 5.14 (Alex Hunsaker)
Fix assorted issues with build and install file paths containing spaces
(Tom Lane)
Update time zone data files to tzdata release 2011i
for DST law changes in Canada, Egypt, Russia, Samoa, and South Sudan.