== PostgreSQL Weekly News - June 15 2008 ==
От | David Fetter |
---|---|
Тема | == PostgreSQL Weekly News - June 15 2008 == |
Дата | |
Msg-id | 20080616044314.GC14565@fetter.org обсуждение исходный текст |
Список | pgsql-announce |
== PostgreSQL Weekly News - June 15 2008 == PostgreSQL 8.3.3, 8.2.9, etc. have been released. Upgrade as soon as practical. == PostgreSQL Product News == check_postgres 1.8.2 released. http://bucardo.org/check_postgres/ == PostgreSQL Jobs for June == http://archives.postgresql.org/pgsql-jobs/2008-06/threads.php == PostgreSQL Local == pgDay San Francisco needs presentations for August 5. Submit by June 17th. http://pugs.postgresql.org/node/415 TorontoPUG's first meeting will be June 23 at The Rhino. http://pugs.postgresql.org/blog/159 OKPUG's first meeting will be June 23 at 7:00pm at Coach's in Norman, OK. http://pugs.postgresql.org/node/408 PgDay.IT's planning meeting will be Wednesday, June 25 at 2130 CET via IRC. irc://irc.freenode.net/pgday-it pgDay Portland needs presentations for July 20. Submit by 20th. http://pugs.postgresql.org/node/400 PGCon Brazil 2008 will be on September 26-27 at Unicamp in Campinas. http://pgcon.postgresql.org.br/index.en.html PGDay.IT 2008 will be October 17 and 18 in Prato. http://www.pgday.org/it/ == PostgreSQL in the News == Planet PostgreSQL: http://www.planetpostgresql.org/ General Bits, Archives and occasional new articles: http://www.varlena.com/GeneralBits/ PostgreSQL Weekly News is brought to you this week by David Fetter Submit news and announcements by Sunday at 3:00pm Pacific time. Please send English language ones to david@fetter.org, German language to pwn@pgug.de, Italian language to pwn@itpug.org. == Applied Patches == Tom Lane committed: - In pgsql/src/backend/commands/aggregatecmds.c, ALTER AGGREGATE OWNER seems to have been missed by the last couple of patches that dealt with object ownership. It wasn't updating pg_shdepend nor adjusting the aggregate's ACL. In 8.2 and up, fix this permanently by making it use AlterFunctionOwner_oid. In 8.1, the function code wasn't factored that way, so just copy and paste. - In pgsql/doc/src/sgml/release.sgml, update release notes for ALTER AGGREGATE fix. - Stamp 8.3.3, 8.2.9, 8.1.13, 8.0.17, 7.4.21 (except for configure.in/configure). - Rewrite DROP's dependency traversal algorithm into an honest two-pass algorithm, replacing the original intention of a one-pass search, which had been hacked up over time to be partially two-pass in hopes of handling various corner cases better. It still wasn't quite there, especially as regards emitting unwanted NOTICE messages. More importantly, this approach lets us fix a number of open bugs concerning concurrent DROP scenarios, because we can take locks during the first pass and avoid traversing to dependent objects that were just deleted by someone else. There is more that can be done here, but I'll go ahead and commit the base patch before working on the options. - In pgsql/src/backend/access/index/genam.c, fix breakage caused by conflicting patches, as evidenced by the buildfarm. - Tag 8.0.17, 7.4.21. - Fix an ALTER TABLE test case so that it actually tests what the comment says it is testing. Ah, the perils of making keywords optional ... - Fix datetime input functions to correctly detect integer overflow when running on a 64-bit platform ... strtol() will happily return 64-bit output in that case. Per bug #4231 from Geoff Tolley. - In pgsql/src/backend/utils/adt/cash.c, fix unportable (and incorrect anyway) usage of LL constant suffix that recently snuck into cash.c. Per report from Edmundo Robles Lopez. - Create a script to handle stamping release version numbers into files, replacing the tedious and error-prone manual process we've been using. - Improve reporting of dependencies in DROP to work like the scheme that we devised for pg_shdepend, namely the individual dependencies are reported as DETAIL lines rather than coming out as separate NOTICEs. The client-side report is capped at 100 lines, but the server log always gets a full report. - In pgsql/src/backend/access/heap/tuptoaster.c, improve the various elog messages in tuptoaster.c to report which TOAST table the problem happened in. These are all supposedly can't-happen cases, but when they do happen it's useful to know where. Back-patch to 8.3, but not further because the patch doesn't apply cleanly further back. Given the lack of response to my proposal of this, there doesn't seem to be enough interest to justify much back-porting effort. - Refactor the handling of the various DropStmt variants so that when multiple objects are specified, we drop them all in a single performMultipleDeletions call. This makes the RESTRICT/CASCADE checks more relaxed: it's not counted as a cascade if one of the later objects has a dependency on an earlier one. NOTICE messages about such cases go away, too. In passing, fix the permissions check for DROP CONVERSION, which for some reason was never made role-aware, and omitted the namespace-owner exemption too. Alex Hunsaker, with further fiddling by me. - Rearrange ALTER TABLE syntax processing as per my recent proposal: the grammar allows ALTER TABLE/INDEX/SEQUENCE/VIEW interchangeably for all subforms of those commands, and then we sort out what's really legal at execution time. This allows the ALTER SEQUENCE/VIEW reference pages to fully document all the ALTER forms available for sequences and views respectively, and eliminates a longstanding cause of confusion for users. The net effect is that the following forms are allowed that weren't before: ALTER SEQUENCE OWNER TO, ALTER VIEW ALTER COLUMN SET/DROP DEFAULT, ALTER VIEW OWNER TO, and ALTER VIEW SET SCHEMA, (There's no actual functionality gain here, but formerly you had to say ALTER TABLE instead.) Interestingly, the grammar tables actually get smaller, probably because there are fewer special cases to keep track of. I did not disallow using ALTER TABLE for these operations. Perhaps we should, but there's a backwards-compatibility issue if we do; in fact it would break existing pg_dump scripts. I did however tighten up ALTER SEQUENCE and ALTER VIEW to reject non-sequences and non-views in the new cases as well as a couple of cases where they didn't before. The patch doesn't change pg_dump to use the new syntaxes, either. - In pgsql/src/backend/access/gist/gistutil.c, fix 64-bit problem in recent patch. - In pgsql/src/backend/commands/tablecmds.c, make DROP INDEX lock the parent table before locking the index. This behavior is necessary to avoid deadlock against ordinary queries, but we'd broken it with recent changes that made the DROP machinery lock the index before arriving at index_drop. Per intermittent buildfarm failures. - In pgsql/doc/src/sgml/maintenance.sgml, rewrite docs section about routine vacuuming --- it's gotten rather mangled of late, with lots of redundancy, bad grammar, and just plain poor exposition. Make it clear that autovacuum is now considered the normal solution. Alvaro Herrera committed: - Move BufferGetPageSize and BufferGetPage from bufpage.h to bufmgr.h. It is more logical that way, and also it reduces the amount of unnecessary includes in bufpage.h, which is widely used. Zdenek Kotala. My previous patch to bufpage.h should also have credited him as author, but I forgot (sorry about that). - In pgsql/doc/src/sgml/Makefile, make XML building work silently on VPATH builds (untested on regular builds). - In pgsql/doc/src/sgml/config.sgml, in the log_filename documentation, mention that strftime is not used directly to expand the pattern specifier. Per gripe from Josh Drake. Marc Fournier committed: - Tag 8.3.3, 8.2.9, 8.1.13. Neil Conway committed: - In pgsql/src/backend/storage/lmgr/proc.c, fix typo in comment. - In pgsql/src/backend/storage/lmgr/proc.c, further tweak for comment in CheckDeadLock(), per Tom Lane. - In pgsql/src/bin/psql/mainloop.c, editorialization for the text emitted by the "help" psql command. Basically just reuse the same text that psql emitted as part of its startup banner in prior versions, and make some whitespace more consistent with the conventions in other psql command output. Bruce Momjian committed: - Update Japanese FAQ. Jun Kuwamura. - In pgsql/src/backend/utils/misc/postgresql.conf.sample, fix spelling mistake in postgresql.conf. Greg Sabino Mullane. - Add to TODO: "Add pg_ctl option to do a syntax check of postgresql.conf." - In pgsql/doc/src/sgml/ecpg.sgml, use macro to document size of ecpg sqlerrmc string. - Update item to mention target list problem. - Modify TODO entry to be a function: "Add functions to syntax check configuration files." Heikki Linnakangas committed: - In pgsql/src/include/tsearch/ts_type.h, comment fix, should say TSQuery instead of TSVector. Per Jan Urbanski. - In pgsql/src/backend/access/nbtree/nbtinsert.c, fix bug in the WAL recovery code to finish an incomplete split. CacheInvalidateRelcache() crashes if called in WAL recovery, because the invalidation infrastructure hasn't been initialized yet. Back-patch to 8.2, where the bug was introduced. - Add optional on/off argument to \timing. David Fetter. - In pgsql/src/bin/psql/help.c, update "help" output to reflect that \timing now takes an optional on/off argument. - Refactor XLogOpenRelation() and XLogReadBuffer() in preparation for relation forks. XLogOpenRelation() and the associated light-weight relation cache in xlogutils.c is gone, and XLogReadBuffer() now takes a RelFileNode as argument, instead of Relation. For functions that still need a Relation struct during WAL replay, there's a new function called CreateFakeRelcacheEntry() that returns a fake entry like XLogOpenRelation() used to. Andrew Dunstan committed: - In pgsql/src/tools/add_cvs_markers add script to find .c and .h files that are missing CVS PostgreSQL markers and add them. Avoids third party files or those that would cause regression failures. - In pgsql/src/tools/add_cvs_markers, prevent CVS from mangling script. == Rejected Patches (for now) == No one was disappointed this week :-) == Pending Patches == Pavan Deolasee sent in a WIP patch to improve VACUUM by making LAZY VACUUM more efficient. Heikki Linnakangas sent in another revision of his patch to refactor the XLogOpenRelation/XLogReadBuffer interface, in preparation for the relation forks patch, and subsequently the FSM rewrite patch. Greg Sabino Mullane sent in a patch to format functions for better readability in pg_dump, placing the function body last. Bruce Momjian sent in a revision of Euler Taveira de Oliveira's patch which simplifies formatting.c. Euler Taveira de Oliveira which fixes a small typo in the DTrace docs. pgsql at Mohawksoft.com sent in a patch to fix sslconfig in 8.3.3. Zdenek Kotala sent in a patch in preparation for his in-place upgrades patch. Alvaro Herrera sent in two revisions of a patch to remove inclusions of relscan.h from unneeded places.
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