Fix multiple bugs associated with CREATE INDEX
CONCURRENTLY (Andres Freund, Tom Lane)
Fix CREATE INDEX CONCURRENTLY to use
in-place updates when changing the state of an index's
pg_index row. This prevents race conditions that could
cause concurrent sessions to miss updating the target index, thus
resulting in corrupt concurrently-created indexes.
Also, fix various other operations to ensure that they ignore
invalid indexes resulting from a failed CREATE INDEX
CONCURRENTLY command. The most important of these is
VACUUM, because an auto-vacuum could easily be launched
on the table before corrective action can be taken to fix or remove
the invalid index.
Avoid corruption of internal hash tables when out of memory
(Hitoshi Harada)
Fix planning of non-strict equivalence clauses above outer joins
(Tom Lane)
The planner could derive incorrect constraints from a clause equating
a non-strict construct to something else, for example
WHERE COALESCE(foo, 0) = 0
when foo is coming from the nullable side of an outer join.
Improve planner's ability to prove exclusion constraints from
equivalence classes (Tom Lane)
Fix partial-row matching in hashed subplans to handle cross-type cases
correctly (Tom Lane)
This affects multicolumn NOT IN subplans, such as
WHERE (a, b) NOT IN (SELECT x, y FROM ...)
when for instance b and y are int4
and int8 respectively. This mistake led to wrong answers
or crashes depending on the specific datatypes involved.
Acquire buffer lock when re-fetching the old tuple for an
AFTER ROW UPDATE/DELETE trigger (Andres Freund)
In very unusual circumstances, this oversight could result in passing
incorrect data to the precheck logic for a foreign-key enforcement
trigger. That could result in a crash, or in an incorrect decision
about whether to fire the trigger.
Fix REASSIGN OWNED to handle grants on tablespaces
(Álvaro Herrera)
Ignore incorrect pg_attribute entries for system
columns for views (Tom Lane)
Views do not have any system columns. However, we forgot to
remove such entries when converting a table to a view. That's fixed
properly for 9.3 and later, but in previous branches we need to defend
against existing mis-converted views.
Fix rule printing to dump INSERT INTO table
DEFAULT VALUES correctly (Tom Lane)
Guard against stack overflow when there are too many
UNION/INTERSECT/EXCEPT clauses
in a query (Tom Lane)
Prevent platform-dependent failures when dividing the minimum possible
integer value by -1 (Xi Wang, Tom Lane)
Fix possible access past end of string in date parsing
(Hitoshi Harada)
Produce an understandable error message if the length of the path name
for a Unix-domain socket exceeds the platform-specific limit
(Tom Lane, Andrew Dunstan)
Formerly, this would result in something quite unhelpful, such as
"Non-recoverable failure in name resolution".
Fix memory leaks when sending composite column values to the client
(Tom Lane)
Make pg_ctl more robust about reading the
postmaster.pid file (Heikki Linnakangas)
Fix race conditions and possible file descriptor leakage.
Fix possible crash in psql if incorrectly-encoded data
is presented and the client_encoding setting is a
client-only encoding, such as SJIS (Jiang Guiqing)
Fix bugs in the restore.sql script emitted by
pg_dump in tar output format (Tom Lane)
The script would fail outright on tables whose names include
upper-case characters. Also, make the script capable of restoring
data in --inserts mode as well as the regular COPY mode.
Fix pg_restore to accept POSIX-conformant
tar files (Brian Weaver, Tom Lane)
The original coding of pg_dump's tar
output mode produced files that are not fully conformant with the
POSIX standard. This has been corrected for version 9.3. This
patch updates previous branches so that they will accept both the
incorrect and the corrected formats, in hopes of avoiding
compatibility problems when 9.3 comes out.
Fix pg_resetxlog to locate postmaster.pid
correctly when given a relative path to the data directory (Tom Lane)
This mistake could lead to pg_resetxlog not noticing
that there is an active postmaster using the data directory.
Fix libpq's lo_import() and
lo_export() functions to report file I/O errors properly
(Tom Lane)
Fix ecpg's processing of nested structure pointer
variables (Muhammad Usama)
Make contrib/pageinspect's btree page inspection
functions take buffer locks while examining pages (Tom Lane)
Fix pgxs support for building loadable modules on AIX
(Tom Lane)
Building modules outside the original source tree didn't work on AIX.
Update time zone data files to tzdata release 2012j
for DST law changes in Cuba, Israel, Jordan, Libya, Palestine, Western
Samoa, and portions of Brazil.