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Wöchentlicher PostgreSQL Newsletter - 31. Juli 2011

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== Wöchentlicher PostgreSQL Newsletter - 31. Juli 2011 ==

== PostgreSQL Produkt Neuigkeiten ==

Database Master 4, ein GUI Management und Reporting Werkzeug,
welches PostgreSQL unterstützt, ist erschienen.

ODB 1.5.0, ein ORM für C++, unterstützt PostgreSQL.

pgfincore 1.0, ein Set von Funktionen um das Low-Level Management von
Relationen, unter Zuhilfenahme von mincore, zu handhaben und um
den Cache Memory zu erforschen, ist erschienen.

Slony-I 2.0.7, eine eine kaskadierende Master-Slave
Replikationslösung für PostgreSQL, ist erschienen.

Version 1.19.3 von tail_n_mail, ein Programm zum Überwachen von
Logdateien, ist erschienen.

Version 4.4.6 von Bucardo, einem Postgres Multi-Master
Replikationssystem, ist erschienen.

== PostgreSQL Jobs im Juli ==

== PostgreSQL Lokal ==

PGDay Porto Alegre findet am 19. August 19 2011
in Porto Alegre, RS, Brasilien statt.

Postgres Open 2011, eine Konferenz die sich auf den Umbruch der
Datenbankindustrie durch PostgreSQL konzentriert, wird vom 14. bis 16.
September 2011 in Chicago, Illinois im Westin Michigan Avenue
Hotel stattfinden.

PG-Day Denver 2011 findet am Freitag, dem 21. Oktober 2011 auf dem
Auraria Campus in der Nähe von Downtown Denver, Colorado statt.

PostgreSQL Conference West (#PgWest) findet vom 27. bis 30. September
2011 im San Jose Convention Center in Jan Jose, Kalifornen, USA statt.

PostgreSQL Conference Europe 2011 findet vom 18. bis
21. Oktober in Amsterdam statt.

pgbr findet in Sao Paulo, Brazilien, am 3. und 4. November 2011 statt.

PGConf.DE 2011 ist die Deutschsprachige PostgreSQL Konferenz
und wird am 11. November 2011 im Rheinischen Industriemuseum
in Oberhausen, Deutschland, stattfinden. Der Call for Papers ist offen.

== PostgreSQL in den News ==

Planet PostgreSQL:

Dieser wöchentliche PostgreSQL Newsletter wurde erstellt von David Fetter.

Sende Neuigkeiten und Ankündigungen bis Sonntag, 15 Uhr Pazifischer
Zeit. Bitte sende englische Beiträge an, deutsche an, italienische an, spanische an

== Reviews ==

== Angewandte Patches ==

Robert Haas pushed:

- Add new pgbench switch, --unlogged-tables.  This entails adjusting
  pgbench to use getopt_long() rather than getopt().

- Add new pgbench options, --tablespace and --index-tablespace.  Per a
  request from Greg Smith.

- Improvements to SQL/MED documentation.  Laurenz Albe, somewhat
  modified by me.

- Add some environment checks prior to sepgsql regression testing.
  This probably needs more work, but it's a start.  KaiGai Kohei

- Clarify which relkinds accept column comments.  Per discussion with
  Josh Kupershmidt.

- Only display column comments for relkinds that support them.  Josh
  Kupershmidt, with minor modifications by me.

- Fix typo.  Noted by Josh Kupershmidt.

- Move new pgbench options to correct section of --help output.

- Reduce sinval synchronization overhead.  Testing shows that the
  overhead of acquiring and releasing SInvalReadLock and msgNumLock on
  high-core count boxes can waste a lot of CPU time and hurt
  performance.  This patch adds a per-backend flag that allows us to
  skip all that locking in most cases.  Further testing shows that
  this improves performance even when sinval traffic is very high.
  Patch by me.  Review and testing by Noah Misch.

Andrew Dunstan pushed:

- Silence compiler warning about uninitialized variable.  It is set
  correctly on the only path that uses it, but the compiler can't know

- Don't build replacement getpeereid function on mingw.  Windows
  doesn't have Unix sockets, so it's not needed, and moreover causes
  compile warnings.

Peter Eisentraut pushed:

- Replace printf format %i by %d.  They are identical, but the
  overwhelming majority of the code uses %d, so standardize on that.

- Add missing newlines at end of error messages

- Minor message style adjustment

- Add host name resolution information to pg_hba.conf error messages.
  This is to be able to analyze issues with host names in pg_hba.conf.

Tom Lane pushed:

- Check to see whether libxml2 handles error context the way we
  expect.  It turns out to be possible to link against a
  that does this differently than the version we configured and built
  against, so we need a runtime check to avoid bizarre behavior.  Per
  report from Bernd Helmle.  Patch by Florian Pflug.

- Fix pg_restore's direct-to-database mode for
  standard_conforming_strings.  pg_backup_db.c contained a mini SQL
  lexer with which it tried to identify boundaries between SQL
  commands, but that code was not designed to cope with
  standard_conforming_strings, and would get the wrong answer if a
  backslash immediately precedes a closing single quote in such a
  string, as per report from Julian Mehnle.  The bug only affects
  direct-to-database restores from archive files made with
  standard_conforming_strings = on.  Rather than complicating the code
  some more to try to fix that, let's just rip it all out.  The only
  reason it was needed was to cope with COPY data embedded into
  ordinary archive entries, which was a layout that was used only for
  about the first three weeks of the archive format's existence, and
  never in any production release of pg_dump.  Instead, just rely on
  the archive file layout to tell us whether we're printing COPY data
  or not.  This bug represents a data corruption hazard in all
  releases in which standard_conforming_strings can be turned on, ie
  8.2 and later, so back-patch to all supported branches.

Bruce Momjian pushed:

- Fix pg_update to properly test for the data directory's existence on
  Win32.  Backpatch to 9.1.

== Abgelehnte Patches (bis jetzt) ==

No one was disappointed this week :-)

== Eingesandte Patches ==

Timothy D. F. Lewis sent in another revision of a patch which allows
people to set the maximum number of large objects which can be

Alexey Klyukin sent in another revision of the patch intended to
validate configuration files.

Jeff Janes sent in a patch to allow running pgbench in
single-transaction mode.

Florian Pflug sent in another revision of a patch intended to fix a
failure mode in XML.

Heikki Linnakangas sent in another revision of the patch to build GiST
indexes faster.

Josh Kupershmidt sent in another revision of the patch to display
object comments in psql.

Aron Wieck sent in another revision of the vacuumlo patch.

Pavel Stehule sent in another revision of the patch to enhance error

Alvaro Herrera sent in another revision of the FOR KEY LOCK patch.

Robert Haas sent in another revision of the patch intended to reduce
the number of sinval calls.

Nikhil Sontakke sent in two revisions of a patch to allow CHECK
constraints to be only on parent tables in an inheritance (partition)

Alvaro Herrera sent in another revision of the patch to catalog NOT
NULL constraints.

Peter Geoghegan sent in another revision of the patch intended to
reduce power consumption when idle.

Andrew Dunstan sent in a patch to clean up PL/PythonU.

Shigeru HANADA sent in another revision of the patch to add per-column
options to foreign data wrappers.

Robert Haas sent in two revisions of a patch intended to reduce
internal contention in pgbench.


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