Commit Graph

27702 Commits

Author SHA1 Message Date
Bruce Momjian cee63eab8d Update documentation table describing how shared memory is used by
various facilities.
2008-12-18 17:03:09 +00:00
Peter Eisentraut a666d28543 Add note that TRUNCATE uses an access exclusive lock. This apparently
surprised/confused some users.
2008-12-18 10:45:00 +00:00
Michael Meskes e05c5a908b Applied patch by ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp> to
fix segfault on non-glibc systems.
2008-12-17 16:52:07 +00:00
Heikki Linnakangas dcf8409985 Don't reset pg_class.reltuples and relpages in VACUUM, if any pages were
skipped. We could update relpages anyway, but it seems better to only
update it together with reltuples, because we use the reltuples/relpages
ratio in the planner. Also don't update n_live_tuples in pgstat.

ANALYZE in VACUUM ANALYZE now needs to update pg_class, if the
VACUUM-phase didn't do so. Added some boolean-passing to let analyze_rel
know if it should update pg_class or not.

I also moved the relcache invalidation (to update rd_targblock) from
vac_update_relstats to where RelationTruncate is called, because
vac_update_relstats is not called for partial vacuums anymore. It's more
obvious to send the invalidation close to the truncation that requires it.

Per report by Ned T. Crigler.
2008-12-17 09:15:03 +00:00
Bruce Momjian 5a90bc1fbe The attached patch contains a couple of fixes in the existing probes and
includes a few new ones.

- Fixed compilation errors on OS X for probes that use typedefs
- Fixed a number of probes to pass ForkNumber per the relation forks
patch
- The new probes are those that were taken out from the previous
submitted patch and required simple fixes. Will submit the other probes
that may require more discussion in a separate patch.

Robert Lor
2008-12-17 01:39:04 +00:00
Alvaro Herrera 5434e46986 Add note to the shared memory sizing table about needing to use page count in
shared_buffers and wal_buffers, not size in bytes.  Per discussion.
2008-12-16 19:30:43 +00:00
Tom Lane fc3297d828 Make heap_update() set newtup->t_tableOid correctly, for consistency with
the other major heapam.c functions.  The only known consequence of this
omission is that UPDATE RETURNING failed to return the correct value for
"tableoid", as per report from KaiGai Kohei.

Back-patch to 8.2.  Arguably it's wrong all the way back; but without
evidence of visible breakage before RETURNING was added, I'll desist from
patching the older branches.
2008-12-16 16:26:08 +00:00
Andrew Dunstan 04ecc64310 Attempt to fix MSVC breakage from Major Version patch. 2008-12-16 15:42:21 +00:00
Bruce Momjian 7ac5727659 Fix wording of section comparing triggers and rules; old wording as
confusing.
2008-12-16 03:12:08 +00:00
Tom Lane 794ec7b063 Department of second thoughts: further experimentation with CREATE OR REPLACE
VIEW suggests that it'd be worth spelling the error messages out in a little
more detail.  This seems to help with localizing the problem.
2008-12-16 00:56:12 +00:00
Bruce Momjian 1b92aeb93e Improve comment about why sleep is used by pg_standby to handle 'copy'
file size problem.
2008-12-15 22:13:02 +00:00
Bruce Momjian 30c6202a2a Add documentation that pg_standby sleeps on Win32 because of 'copy' behavior. 2008-12-15 22:08:35 +00:00
Bruce Momjian eb88e7ee2c Add comment about GNUWin32's cp not having the file system problem. 2008-12-15 21:39:25 +00:00
Tom Lane 4da65a23e7 Code review for CREATE OR REPLACE VIEW patch. Do things in a saner order to
result in hopefully-less-confusing error messages when the new definition
isn't compatible with the old; minor other cleanup.
2008-12-15 21:35:31 +00:00
Bruce Momjian 78b25fd2e9 Add missing 'break' in Win32 switch statement, reported by Martin Zaun 2008-12-15 21:11:54 +00:00
Tom Lane d1c24460bf Fix cast-away-const problem as well as bogus calculation of required buffer size. 2008-12-15 19:07:48 +00:00
Tom Lane 66bb74dbe8 Arrange for the pg_foo_is_visible and has_foo_privilege families of functions
to return NULL, instead of erroring out, if the target object is specified by
OID and we can't find that OID in the catalogs.  Since these functions operate
internally on SnapshotNow rules, there is a race condition when using them
in user queries: the query's MVCC snapshot might "see" a catalog row that's
already committed dead, leading to a failure when the inquiry function is
applied.  Returning NULL should generally provide more convenient behavior.
This issue has been complained of before, and in particular we are now seeing
it in the regression tests due to another recent patch.
2008-12-15 18:09:41 +00:00
Michael Meskes 3f7e1e4b91 Do not try to change a const variable. 2008-12-15 15:34:07 +00:00
Tom Lane 301194f8ea Reduce the scaling factor for attstattarget to number-of-lexemes from 100
to 10, to compensate for the recent change in default statistics target.
The original number was pulled out of the air anyway :-(, but it was picked
in the context of the old default, so holding the default size of the
MCELEM array constant seems the best thing.  Per discussion.
2008-12-15 15:06:31 +00:00
Tom Lane b4d64a6d48 Remove our dependencies on MB_CUR_MAX in favor of believing that
pg_database_encoding_max_length() predicts the maximum character length
returned by wchar2char().  Per Hiroshi Inoue, MB_CUR_MAX isn't usable on
Windows because we allow encoding = UTF8 when the locale says differently;
and getting rid of it seems a good idea on general principles because it
narrows our dependence on libc's locale API just a little bit more.

Also install a check for overflow of the buffer size computation.
2008-12-15 14:55:50 +00:00
Magnus Hagander 5f3724dd7c Support specifying filename for SSL certificate, key, root certificate store
and certificate revokation list by using connection parameters or environment
variables.

Original patch by Mark Woodward, heavily reworked by Alvaro Herrera and
Magnus Hagander.
2008-12-15 10:28:22 +00:00
Tom Lane a9d5f30be3 Restore enforce_generic_type_consistency's pre-8.3 behavior of allowing an
actual argument type of ANYARRAY to match an argument declared ANYARRAY,
so long as ANYELEMENT etc aren't used.  I had overlooked the fact that this
is a possible case while fixing bug #3852; but it is possible because
pg_statistic contains columns declared ANYARRAY.  Per gripe from Corey Horton.
2008-12-14 19:45:52 +00:00
Magnus Hagander b8753e5955 Replace both send and receive BIO routines in the SSL code with our own,
calling recv() and send(). This makes the calls go through the socket
emulation code on Win32, making them for example properly interruptible.
2008-12-14 19:39:37 +00:00
Tom Lane 65e3ea7641 Increase the default value of default_statistics_target from 10 to 100,
and its maximum value from 1000 to 10000.  ALTER TABLE SET STATISTICS
similarly now allows a value up to 10000.  Per discussion.
2008-12-13 19:13:44 +00:00
Tom Lane b69bde7749 Remove pg_plan_queries()'s now-useless needSnapshot parameter. It's useless
in 8.3, too, but I'm not back-patching this change since it would break any
extension modules that might be calling that function.
2008-12-13 02:29:22 +00:00
Tom Lane c98a923786 Fix failure to ensure that a snapshot is available to datatype input functions
when they are invoked by the parser.  We had been setting up a snapshot at
plan time but really it needs to be done earlier, before parse analysis.
Per report from Dmitry Koterov.

Also fix two related problems discovered while poking at this one:
exec_bind_message called datatype input functions without establishing a
snapshot, and SET CONSTRAINTS IMMEDIATE could call trigger functions without
establishing a snapshot.

Backpatch to 8.2.  The underlying problem goes much further back, but it is
masked in 8.1 and before because we didn't attempt to invoke domain check
constraints within datatype input.  It would only be exposed if a C-language
datatype input function used the snapshot; which evidently none do, or we'd
have heard complaints sooner.  Since this code has changed a lot over time,
a back-patch is hardly risk-free, and so I'm disinclined to patch further
than absolutely necessary.
2008-12-13 02:00:20 +00:00
Alvaro Herrera 0f864a63ea Reduce some rel.h inclusions, and add pg_list.h to pg_proc_fn.h. 2008-12-12 22:56:00 +00:00
Michael Meskes 192dd845a1 Using clause has to accept signed numeric constants too. 2008-12-12 12:14:43 +00:00
Tom Lane 17dc173660 To reduce confusion over whether VACUUM FULL is needed for anti-wraparound
vacuuming (it's not), say "database-wide VACUUM" instead of "full-database
VACUUM" in the relevant hint messages.  Also, document the permissions needed
to do this.  Per today's discussion.
2008-12-11 18:16:18 +00:00
Peter Eisentraut d9346f2186 The macros NULL_DEV and DEVNULL were both used to work around
platform-specific spellings of /dev/null.  But one should be enough, so
settle on DEVNULL.
2008-12-11 10:25:17 +00:00
Peter Eisentraut 21a743e886 Move carefully obscured SunOS 4 specific #include out of c.h into port
header file.  SunOS 4 is probably broken anyway, but this item stuck out as
completely weird.
2008-12-11 09:17:07 +00:00
Peter Eisentraut 218b4e8dd8 Append major version number and for libraries soname major version number
to the gettext domain name, to simplify parallel installations.

Also, rename set_text_domain() to pg_bindtextdomain(), because that is what
it does.
2008-12-11 07:34:09 +00:00
Tom Lane 55368223cd Tweak the tree descent loop in fsm_search_avail to not look at the
right child if it doesn't need to.  This saves some miniscule number
of cycles, but the ulterior motive is to avoid an optimization bug
known to exist in SCO's C compiler (and perhaps others?)
2008-12-10 17:11:18 +00:00
Bruce Momjian 253fa736b9 Update journaling performance docs based on comments by Michael Renner. 2008-12-10 11:05:49 +00:00
Tom Lane 5932915fef Add a specific example of parenthesizing when extracting a field of a
composite column.  Might help cut down on future questions...
2008-12-09 20:52:03 +00:00
Heikki Linnakangas dea81a6cf6 Revert SIGUSR1 multiplexing patch, per Tom's objection. 2008-12-09 15:59:39 +00:00
Heikki Linnakangas 7b05b3fa39 Provide support for multiplexing SIGUSR1 signal. The upcoming synchronous
replication patch needs a signal, but we've already used SIGUSR1 and
SIGUSR2 in normal backends. This patch allows reusing SIGUSR1 for that,
and for other purposes too if the need arises.
2008-12-09 14:28:20 +00:00
Magnus Hagander 9edd720050 Clearify how processes are started by autovacuum, and what the effect
of autovacuum_max_workers parameter is.

Per discussion with Alvaro.
2008-12-08 20:30:58 +00:00
Tom Lane 4e0b63b0b9 Teach pgstat_vacuum_stat to not bother scanning pg_proc in the common case
where no function stats entries exist.  Partial response to Pavel's
observation that small VACUUM operations are noticeably slower in CVS HEAD
than 8.3.
2008-12-08 15:44:54 +00:00
Magnus Hagander bd33aca36e Add note that autovacuum can use up several times maintenance_work_mem,
with warning against setting it too high.
2008-12-08 15:11:39 +00:00
Tom Lane 173a676027 Don't try to optimize EXISTS subqueries with empty FROM-lists: we need to
form a join and that case doesn't have anything to join to.  (We could
probably make it work if we didn't pull up the subquery, but it seems to
me that the case isn't worth extra code.)  Per report from Greg Stark.
2008-12-08 00:16:09 +00:00
Alvaro Herrera aa7f00464d Desultorily enclose programlisting tags in CDATA, to get rid of some obnoxious
SGML-escaping.
2008-12-07 23:46:39 +00:00
Peter Eisentraut b2971e2048 Set up ar, dlltool, dllwrap, and windres for cross-compiling if necessary.
Plus some makefile cleanup.

part of a patch from Richard Evans
2008-12-07 08:36:22 +00:00
Bruce Momjian ff1ea2173a Allow CREATE OR REPLACE VIEW to add columns to the _end_ of the view.
Robert Haas
2008-12-06 23:22:46 +00:00
Bruce Momjian 31076c8beb Document that non-data journaling is a recommended mount option. 2008-12-06 21:34:27 +00:00
Heikki Linnakangas 7a567d9407 MAPSIZE macro needs to use MAXALIGN(SizeOfPageHeaderData) instead of
SizeOfPageHeaderData, like PageGetContents does. Per report by Pavan
Deolasee.
2008-12-06 17:31:37 +00:00
Peter Eisentraut b61318d1b4 Better descriptions in pg_get_keywords(), consistent with the documentation
appendix on key words.  catdesc was originally intended as computer-readable,
but since we ended up adding catcode, we can have more elaborate descriptions.
2008-12-05 13:41:20 +00:00
Peter Eisentraut 455dffbb73 Default values for function arguments
Pavel Stehule, with some tweaks by Peter Eisentraut
2008-12-04 17:51:28 +00:00
Alvaro Herrera 7b640b0345 Fix a couple of snapshot management bugs in the new ResourceOwner world:
non-writable large objects need to have their snapshots registered on the
transaction resowner, not the current portal's, because it must persist until
the large object is closed (which the portal does not).  Also, ensure that the
serializable snapshot is recorded by the transaction resource owner too, even
when a subtransaction has changed the current resource owner before
serializable is taken.

Per bug reports from Pavan Deolasee.
2008-12-04 14:51:02 +00:00
Magnus Hagander 30c52532d2 Comment said we don't free the lockarray, and why. The proper fix is to
make the code do what the comment says...
2008-12-04 14:07:42 +00:00