* A vulnerability exists due to the insecure creation of temporary files,
which could possibly let a malicious user overwrite arbitrary files
* Repair possible failure to update hint bits on disk
Under rare circumstances this oversight could lead to "could not access
transaction status" failures, which qualifies it as a potential-data-loss bug.
Dump/restore is not necessary for 7.4.x users.
Changes in 7.4.5:
* Repair possible crash during concurrent btree index insertions
This patch fixes a rare case in which concurrent insertions into a
btree index could result in a server panic. No permanent damage
would result, but it's still worth a re-release. The bug does not
exist in pre-7.4 releases.
Changes in 7.4.4:
* Prevent possible loss of committed transactions during crash
Due to insufficient interlocking between transaction commit and
checkpointing, it was possible for transactions committed just
before the most recent checkpoint to be lost, in whole or in part,
following a database crash and restart. This is a serious bug that
has existed since PostgreSQL 7.1.
* Check HAVING restriction before evaluating result list of an
aggregate plan
* Avoid crash when session's current userID is deleted
* Fix hashed crosstab for zero-rows case (Joe)
* Force cache update after renaming a column in a foreign key
* Pretty-print UNION queries correctly
* Make psql handle \r\n newlines properly in COPY IN
* pg_dump handled ACLs with grant options incorrectly
* Fix thread support for OS X and Solaris
* Updated JDBC driver (build 215) with various fixes
* ECPG fixes
* Translation updates (various contributors)
'-*' instead of '-[0-9]*'. Otherwise postsgreql74-lib-whatever can be
incorrectly installed alongside postgresql73-lib-whatever because the latter
does not match 'postgresql73-[0-9]*'.
changes:
* Fix temporary memory leak when using non-hashed aggregates (Tom)
* ECPG fixes, including some for Informix compatibility (Michael)
* Fixes for compiling with thread-safety, particularly Solaris (Bruce)
* Fix error in COPY IN termination when using the old network
protocol (ljb)
* Several important fixes in pg_autovacuum (Matthew T. O'Connor)
* Fix problem with reading tar-format dumps on NetBSD and BSD/OS (Bruce)
* Several JDBC fixes
* Fix ALTER SEQUENCE RESTART where last_value equals the restart
value (Tom)
* Repair failure to recalculate nested sub-selects (Tom)
* Fix problems with non-constant expressions in LIMIT/OFFSET
* Support FULL JOIN with no join clause, such as X FULL JOIN Y ON
TRUE (Tom)
* Fix another zero-column table bug (Tom)
* Improve handling of non-qualified identifiers in GROUP BY clauses
in sub-selects (Tom)
* Do not generate "NATURAL CROSS JOIN" when decompiling rules (Tom)
* Add checks for invalid field length in binary COPY (Tom)
* Avoid locking conflict between ANALYZE and LISTEN/NOTIFY
* Numerous translation updates (various contributors)
meta-package
PostgreSQL is a robust, next-generation, Object-Relational DBMS (ORDBMS),
derived from the Berkeley Postgres database management system. While
PostgreSQL retains the powerful object-relational data model, rich data types
and easy extensibility of Postgres, it replaces the PostQuel query language
with an extended subset of SQL.
PostgreSQL is free and the complete source is available.
This is the meta-package for the PostgreSQL database system.
