Tatsuo Ishii [Mon, 7 Jan 2013 02:13:44 +0000 (11:13 +0900)]
Add new "-q" logging option (quiet mode) while in initialize mode
(-i), producing only one progress message per 5 seconds along with
elapsed time and estimated remaining time. Also add elapsed time and
estimated remaining time to the default logging(prints one message
each 100000 rows).
Patch contributed by Tomas Vondra, reviewed by Jeevan Chalke and
Tatsuo Ishii.
Tom Lane [Sun, 6 Jan 2013 20:49:53 +0000 (15:49 -0500)]
Fix plpython build on older versions of OS X.
Pre-Lion versions of Apple's linker don't allow space between -F and its
argument. (Snow Leopard is nice enough to tell you that in so many words,
but older versions just fail with very obscure link errors, as seen on
buildfarm member locust for instance.) Oversight in commit
fc8745070a53469a43ecbf999dc5692a36a649cc.
Magnus Hagander [Sat, 5 Jan 2013 15:54:06 +0000 (16:54 +0100)]
Add support for generating minimal recovery.conf when doing base backups
Adds commandline option -R to pg_basebackup that creates a recovery.conf which
enables standby mode using the same parameters that pg_basebackup used to
connect to the master, and writes it into the output directory (or injects it
in the tar file when tar format is used).
Zoltan Boszormenyi, modified by Magnus Hagander, reviewed by Amit Kapila & Fujii Masao
Magnus Hagander [Sat, 5 Jan 2013 14:40:19 +0000 (15:40 +0100)]
Centralize single quote escaping in src/port/quotes.c
For code-reuse in upcoming functionality in pg_basebackup.
Zoltan Boszormenyi
Peter Eisentraut [Sat, 5 Jan 2013 13:56:14 +0000 (08:56 -0500)]
PL/Python: Make build on OS X more flexible
The PL/Python build on OS X was previously hardcoded to use the system
installation of Python, ignoring whatever was specified to configure.
Except that it would use the header files from configure, which could
lead to mismatches. It was not possible to build against a custom
Python installation.
Now, we check in configure how the specified Python installation was
built and use that, supporting framework and non-framework builds.
Peter Eisentraut [Sat, 5 Jan 2013 13:49:19 +0000 (08:49 -0500)]
Revert "PL/Python: Remove workaround for returning booleans in Python <2.3"
This reverts commit
be0dfbad3671ed2503a2a661e70b48c5b364e069.
The previous information that Py_RETURN_TRUE and Py_RETURN_FALSE are
supported in Python 2.3 is wrong. They require Python 2.4. Update the
comment about that.
Peter Eisentraut [Sat, 5 Jan 2013 13:29:18 +0000 (08:29 -0500)]
doc: Update CREATE FUNCTION compatibility information
Parameter defaults are actually in the SQL standard, while it was
previously claimed they were not.
Peter Eisentraut [Sat, 5 Jan 2013 13:25:21 +0000 (08:25 -0500)]
Make some spelling more consistent
Tom Lane [Fri, 4 Jan 2013 22:42:19 +0000 (17:42 -0500)]
Invent a "one-shot" variant of CachedPlans for better performance.
SPI_execute() and related functions create a CachedPlan, execute it once,
and immediately discard it, so that the functionality offered by
plancache.c is of no value in this code path. And performance measurements
show that the extra data copying and invalidation checking done by
plancache.c slows down simple queries by 10% or more compared to 9.1.
However, enough of the SPI code is shared with functions that do need plan
caching that it seems impractical to bypass plancache.c altogether.
Instead, let's invent a variant version of cached plans that preserves
99% of the API but doesn't offer any of the actual functionality, nor the
overhead. This puts SPI_execute() performance back on par, or maybe even
slightly better, than it was before. This change should resolve recent
complaints of performance degradation from Dong Ye, Pavel Stehule, and
others.
By avoiding data copying, this change also reduces the amount of memory
needed to execute many-statement SPI_execute() strings, as for instance in
a recent complaint from Tomas Vondra.
An additional benefit of this change is that multi-statement SPI_execute()
query strings are now processed fully serially, that is we complete
execution of earlier statements before running parse analysis and planning
on following ones. This eliminates a long-standing POLA violation, in that
DDL that affects the behavior of a later statement will now behave as
expected.
Back-patch to 9.2, since this was a performance regression compared to 9.1.
(In 9.2, place the added struct fields so as to avoid changing the offsets
of existing fields.)
Heikki Linnakangas and Tom Lane
Tom Lane [Thu, 3 Jan 2013 23:34:51 +0000 (18:34 -0500)]
Prevent creation of postmaster's TCP socket during pg_upgrade testing.
On non-Windows machines, we use the Unix socket for connections to test
postmasters, so there is no need to create a TCP socket. Furthermore,
doing so causes failures due to port conflicts if two builds are carried
out concurrently on one machine. (If the builds are done in different
chroots, which is standard practice at least in Red Hat distros, there
is no risk of conflict on the Unix socket.) Suppressing the TCP socket
by setting listen_addresses to empty has long been standard practice
for pg_regress, and pg_upgrade knows about this too ... but pg_upgrade's
test.sh didn't get the memo.
Back-patch to 9.2, and also sync the 9.2 version of the script with HEAD
as much as practical.
Heikki Linnakangas [Thu, 3 Jan 2013 17:51:00 +0000 (19:51 +0200)]
Tolerate timeline switches while "pg_basebackup -X fetch" is running.
If you take a base backup from a standby server with "pg_basebackup -X
fetch", and the timeline switches while the backup is being taken, the
backup used to fail with an error "requested WAL segment %s has already
been removed". This is because the server-side code that sends over the
required WAL files would not construct the WAL filename with the correct
timeline after a switch.
Fix that by using readdir() to scan pg_xlog for all the WAL segments in the
range, regardless of timeline.
Also, include all timeline history files in the backup, if taken with
"-X fetch". That fixes another related bug: If a timeline switch happened
just before the backup was initiated in a standby, the WAL segment
containing the initial checkpoint record contains WAL from the older
timeline too. Recovery will not accept that without a timeline history file
that lists the older timeline.
Backpatch to 9.2. Versions prior to that were not affected as you could not
take a base backup from a standby before 9.2.
Heikki Linnakangas [Thu, 3 Jan 2013 08:41:58 +0000 (10:41 +0200)]
Delay reading timeline history file until it's fetched from
Streaming replication can fetch any missing timeline history files from the
master, but recovery would read the timeline history file for the target
timeline before reading the checkpoint record, and before walreceiver has
had a chance to fetch it from the master. Delay reading it, and the sanity
checks involving timeline history, until after reading the checkpoint
record.
There is at least one scenario where this makes a difference: if you take
a base backup from a standby server right after a timeline switch, the
WAL segment containing the initial checkpoint record will begin with an
older timeline ID. Without the timeline history file, recovering that file
will fail as the older timeline ID is not recognized to be an ancestor of
the target timeline. If you try to recover from such a backup, using only
streaming replication to fetch the WAL, this patch is required for that to
work.
Bruce Momjian [Thu, 3 Jan 2013 02:20:13 +0000 (21:20 -0500)]
Adjust a few pg_upgrade functions to return void.
Adjust pg_upgrade page conversion functions (which are not used) to
return void so transfer_all_new_dbs can return void.
Alvaro Herrera [Wed, 2 Jan 2013 21:39:20 +0000 (18:39 -0300)]
Fix IsUnderPostmaster/EXEC_BACKEND confusion
Alvaro Herrera [Wed, 2 Jan 2013 20:49:06 +0000 (17:49 -0300)]
Set MaxBackends only on bootstrap and standalone modes
... not on auxiliary processes. I managed to overlook the fact that I
had disabled assertions on my HEAD checkout long ago.
Hopefully this will turn the buildfarm green again, and put an end to
today's silliness.
Magnus Hagander [Wed, 2 Jan 2013 19:34:08 +0000 (20:34 +0100)]
Move tar function headers to pgtar.h
This makes it possible to include them only where they are used, so
we can avoid the conflict of the uid_t and gid_t datatypes that happened
in plperl (since plperl doesn't need the tar functions)
Alvaro Herrera [Wed, 2 Jan 2013 17:39:11 +0000 (14:39 -0300)]
Make sure MaxBackends is always set
Auxiliary and bootstrap processes weren't getting it, causing initdb to
fail completely.
Alvaro Herrera [Wed, 2 Jan 2013 15:01:14 +0000 (12:01 -0300)]
Fix background workers for EXEC_BACKEND
Commit
da07a1e8 was broken for EXEC_BACKEND because I failed to realize
that the MaxBackends recomputation needed to be duplicated by
subprocesses in SubPostmasterMain. However, instead of having the value
be recomputed at all, it's better to assign the correct value at
postmaster initialization time, and have it be propagated to exec'ed
backends via BackendParameters.
MaxBackends stays as zero until after modules in
shared_preload_libraries have had a chance to register bgworkers, since
the value is going to be untrustworthy till that's finished.
Heikki Linnakangas and Álvaro Herrera
Heikki Linnakangas [Wed, 2 Jan 2013 12:35:15 +0000 (14:35 +0200)]
Fix bug in streaming replication over multiple tli switches.
After receiving some WAL over streaming replication, try to open the file
from the timeline we're currently recieving, not recoveryTargetTLI. They
are usually the same, which is why wasn't noticed before, but you'd get
an error if there have been more than one timeline switch between the
current point in WAL and the recovery target.
Heikki Linnakangas [Wed, 2 Jan 2013 11:42:15 +0000 (13:42 +0200)]
Fix silly typo in code, which broke the check for reaching consistency.
Bruce Momjian [Tue, 1 Jan 2013 22:15:01 +0000 (17:15 -0500)]
Update copyrights for 2013
Fully update git head, and update back branches in ./COPYRIGHT and
legal.sgml files.
Magnus Hagander [Tue, 1 Jan 2013 17:29:48 +0000 (18:29 +0100)]
Add new file to MSVC build system as well
Magnus Hagander [Tue, 1 Jan 2013 17:15:57 +0000 (18:15 +0100)]
Unify some tar functionality across different parts
Move some of the tar functionality that existed mostly duplicated
in both pg_dump and the walsender basebackup functionality into
port/tar.c instead, so it can be used from both. It will also be
used by pg_basebackup in the future, which would've caused a third
copy of it around.
Zoltan Boszormenyi and Magnus Hagander
Heikki Linnakangas [Tue, 1 Jan 2013 16:09:31 +0000 (18:09 +0200)]
Winflex binary on FTP site doesn't work on 64-bit Windows, update docs.
Plus some other minor clarifications to Windows build instructions.
Craig Ringer, with minor editorialization by me.
Magnus Hagander [Tue, 1 Jan 2013 15:16:20 +0000 (16:16 +0100)]
Fix descrition of pg_resetxlog -l parameter
This was changed in commit
038f3a05092365eca070bdc588554520dfd5ffb9, including
the description in the docs, but the reference was missed.
Fujii Masao
Tom Lane [Mon, 31 Dec 2012 20:13:26 +0000 (15:13 -0500)]
Fix ruleutils to cope with conflicts from adding/dropping/renaming columns.
In commit
11e131854f8231a21613f834c40fe9d046926387, we improved the
rule/view dumping code so that it would produce valid query representations
even if some of the tables involved in a query had been renamed since the
query was parsed. This patch extends that idea to fix problems that occur
when individual columns are renamed, or added or dropped. As before, the
core of the fix is to assign unique new aliases when a name conflict has
been created. This is complicated by the JOIN USING feature, which
requires the same column alias to be used in both input relations, but we
can handle that with a sufficiently complex approach to assigning aliases.
A fortiori, this patch takes care of situations where the query didn't have
unique column names to begin with, such as in a recent complaint from Bryan
Nuse. (Because of expansion of "SELECT *", re-parsing a dumped query can
require column name uniqueness even though the original text did not.)
Peter Eisentraut [Mon, 31 Dec 2012 05:24:16 +0000 (00:24 -0500)]
doc: Correct description of ldapurl
The ldapurl option doesn't actually support specifying a user name and
password.
Albe Laurenz
Peter Eisentraut [Mon, 31 Dec 2012 05:13:40 +0000 (00:13 -0500)]
Fix compiler warning about uninitialized variable
Heikki Linnakangas [Sun, 30 Dec 2012 12:26:47 +0000 (14:26 +0200)]
Keep timeline history files restored from archive in pg_xlog.
The cascading standby patch in 9.2 changed the way WAL files are treated
when restored from the archive. Before, they were restored under a temporary
filename, and not kept in pg_xlog, but after the patch, they were copied
under pg_xlog. This is necessary for a cascading standby to find them, but
it also means that if the archive goes offline and a standby is restarted,
it can recover back to where it was using the files in pg_xlog. It also
means that if you take an offline backup from a standby server, it includes
all the required WAL files in pg_xlog.
However, the same change was not made to timeline history files, so if the
WAL segment containing the checkpoint record contains a timeline switch, you
will still get an error if you try to restart recovery without the archive,
or recover from an offline backup taken from the standby.
With this patch, timeline history files restored from archive are copied
into pg_xlog like WAL files are, so that pg_xlog contains all the files
required to recover. This is a corner-case pre-existing issue in 9.2, but
even more important in master where it's possible for a standby to follow a
timeline switch through streaming replication. To make that possible, the
timeline history files must be present in pg_xlog.
Peter Eisentraut [Sun, 30 Dec 2012 03:58:07 +0000 (22:58 -0500)]
doc: Correct description of LDAP authentication
Parts of the description had claimed incorrect pg_hba.conf option names
for LDAP authentication.
Albe Laurenz
Robert Haas [Sat, 29 Dec 2012 12:55:37 +0000 (07:55 -0500)]
Adjust more backend functions to return OID rather than void.
This is again intended to support extensions to the event trigger
functionality. This may go a bit further than we need for that
purpose, but there's some value in being consistent, and the OID
may be useful for other purposes also.
Dimitri Fontaine
Alvaro Herrera [Fri, 28 Dec 2012 16:06:15 +0000 (13:06 -0300)]
Remove obsolete XLogRecPtr macros
This gets rid of XLByteLT, XLByteLE, XLByteEQ and XLByteAdvance.
These were useful for brevity when XLogRecPtrs were split in
xlogid/xrecoff; but now that they are simple uint64's, they are just
clutter. The only downside to making this change would be ease of
backporting patches, but that has been negated by other substantive
changes to the involved code anyway. The clarity of simpler expressions
makes the change worthwhile.
Most of the changes are mechanical, but in a couple of places, the patch
author chose to invert the operator sense, making the code flow more
logical (and more in line with preceding comments).
Author: Andres Freund
Eyeballed by Dimitri Fontaine and Alvaro Herrera
Alvaro Herrera [Thu, 27 Dec 2012 21:33:03 +0000 (18:33 -0300)]
Assign InvalidXLogRecPtr instead of MemSet(0)
For consistency.
Author: Andres Freund
Alvaro Herrera [Thu, 27 Dec 2012 21:23:23 +0000 (18:23 -0300)]
Remove unused NextLogPage macro
Commit
061e7efb1b did away with its last caller, but neglected to remove
the actual definition.
Author: Andres Freund
Peter Eisentraut [Thu, 27 Dec 2012 04:48:35 +0000 (23:48 -0500)]
doc: Replace "NOTE" with proper markup
Bruce Momjian [Thu, 27 Dec 2012 00:26:30 +0000 (19:26 -0500)]
Add pg_upgrade --jobs parameter
Add pg_upgrade --jobs, which allows parallel dump/restore of databases,
which improves performance.
Tom Lane [Mon, 24 Dec 2012 22:52:19 +0000 (17:52 -0500)]
Fix some minor issues in view pretty-printing.
Code review for commit
2f582f76b1945929ff07116cd4639747ce9bb8a1: don't use
a static variable for what ought to be a deparse_context field, fix
non-multibyte-safe test for spaces, avoid useless and potentially O(N^2)
(though admittedly with a very small constant) calculations of wrap
positions when we aren't going to wrap.
Simon Riggs [Mon, 24 Dec 2012 17:07:06 +0000 (17:07 +0000)]
Update comments on rd_newRelfilenodeSubid.
Ensure comments accurately reflect state of code
given new understanding, and recent changes.
Include example code from Noah Misch to
illustrate how rd_newRelfilenodeSubid can be
reset deterministically. No code changes.
Simon Riggs [Mon, 24 Dec 2012 16:43:22 +0000 (16:43 +0000)]
Keep rd_newRelfilenodeSubid across overflow.
Teach RelationCacheInvalidate() to keep rd_newRelfilenodeSubid across rel cache
message overflows, so that behaviour is now fully deterministic.
Noah Misch
Simon Riggs [Mon, 24 Dec 2012 16:25:26 +0000 (16:25 +0000)]
Fix more weird compiler messages caused
by unmatched function prototypes.
Andres Freund
Simon Riggs [Mon, 24 Dec 2012 09:18:42 +0000 (09:18 +0000)]
Add function prototype from previous commit.
Robert Haas [Sun, 23 Dec 2012 23:25:03 +0000 (18:25 -0500)]
Adjust many backend functions to return OID rather than void.
Extracted from a larger patch by Dimitri Fontaine. It is hoped that
this will provide infrastructure for enriching the new event trigger
functionality, but it seems possibly useful for other purposes as
well.
Tom Lane [Sun, 23 Dec 2012 19:07:24 +0000 (14:07 -0500)]
Prevent failure when RowExpr or XmlExpr is parse-analyzed twice.
transformExpr() is required to cope with already-transformed expression
trees, for various ugly-but-not-quite-worth-cleaning-up reasons. However,
some of its newer subroutines hadn't gotten the memo. This accounts for
bug #7763 from Norbert Buchmuller: transformRowExpr() was overwriting the
previously determined type of a RowExpr during CREATE TABLE LIKE INCLUDING
INDEXES. Additional investigation showed that transformXmlExpr had the
same kind of problem, but all the other cases seem to be safe.
Andres Freund and Tom Lane
Tom Lane [Sat, 22 Dec 2012 20:01:29 +0000 (15:01 -0500)]
Fix documentation typo.
"GetForeignTableColumnOptions" should be "GetForeignColumnOptions".
Noted by Metin Döşlü.
Heikki Linnakangas [Fri, 21 Dec 2012 18:04:11 +0000 (20:04 +0200)]
Fix sloppiness in the timeline switch over streaming replication patch.
Here's another attempt at fixing the logic that decides how far the WAL can
be streamed, which was still broken if the timeline changed while streaming.
You would get an assertion failure. The way the logic is now written is more
readable, too.
Thom Brown reported the assertion failure.
Heikki Linnakangas [Fri, 21 Dec 2012 13:29:49 +0000 (15:29 +0200)]
Fix race condition if a file is removed while pg_basebackup is running.
If a relation file was removed when the server-side counterpart of
pg_basebackup was just about to open it to send it to the client, you'd
get a "could not open file" error. Fix that.
Backpatch to 9.1, this goes back to when pg_basebackup was introduced.
Heikki Linnakangas [Fri, 21 Dec 2012 07:27:37 +0000 (09:27 +0200)]
Forgot to remove extern declaration of GetRecoveryTargetTLI()
Fujii Masao
Peter Eisentraut [Fri, 21 Dec 2012 04:39:33 +0000 (23:39 -0500)]
Make some messages more consistent in style
Peter Eisentraut [Fri, 21 Dec 2012 04:36:13 +0000 (23:36 -0500)]
Fix grammatical mistake in error message
Tom Lane [Thu, 20 Dec 2012 21:30:59 +0000 (16:30 -0500)]
Fix pg_extension_config_dump() to handle update cases more sanely.
If pg_extension_config_dump() is executed again for a table already listed
in the extension's extconfig, the code was blindly making a new array entry.
This does not seem useful. Fix it to replace the existing array entry
instead, so that it's possible for extension update scripts to alter the
filter conditions for configuration tables.
In addition, teach ALTER EXTENSION DROP TABLE to check for an extconfig
entry for the target table, and remove it if present. This is not a 100%
solution because it's allowed for an extension update script to just
summarily DROP a member table, and that code path doesn't go through
ExecAlterExtensionContentsStmt. We could probably make that case clean
things up if we had to, but it would involve sticking a very ugly wart
somewhere in the guts of dependency.c. Since on the whole it seems quite
unlikely that extension updates would want to remove pre-existing
configuration tables, making the case possible with an explicit command
seems sufficient.
Per bug #7756 from Regina Obe. Back-patch to 9.1 where extensions were
introduced.
Heikki Linnakangas [Thu, 20 Dec 2012 20:00:34 +0000 (22:00 +0200)]
Fix recycling of WAL segments after switching timeline during recovery.
This was broken before, we would recycle old WAL segments on wrong timeline
after the recovery target timeline had changed, but my recent commit to
not initialize ThisTimeLineID at all in a standby's checkpointer process
broke this completely.
The problem is that when installing a recycled WAL segment as a future one,
ThisTimeLineID is used to construct the filename. To fix, always update
ThisTimeLineID to the current timeline being recovered, before recycling
WAL segments at a restartpoint.
This still leaves a small window where we might install WAL segments under
wrong timeline ID, if the timeline is changed just as we're about to start
recycling. Also, even if we're replaying timeline X at the momnent, there's
no guarantee that we'll need as many WAL segments on that timeline as we
recycle. We might be just about to reach the point where we switch to next
timeline, so might only need one more WAL segment on the current timeline.
We'll live with the waste in that situation.
Bug pointed out by Fujii Masao. 9.1 and 9.2 had the same issue, when
recovery target timeline was changed, but I committed a slightly different
version of this patch on those branches.
Bruce Momjian [Thu, 20 Dec 2012 18:56:24 +0000 (13:56 -0500)]
Avoid using NAMEDATALEN in pg_upgrade
Because the client encoding might not match the server encoding,
pg_upgrade can't allocate NAMEDATALEN bytes for storage of database,
relation, and namespace identifiers. Instead pg_strdup() the memory and
free it.
Also add C comment in initdb.c about safe NAMEDATALEN usage.
Heikki Linnakangas [Thu, 20 Dec 2012 12:23:31 +0000 (14:23 +0200)]
Follow TLI of last replayed record, not recovery target TLI, in walsenders.
Most of the time, the last replayed record comes from the recovery target
timeline, but there is a corner case where it makes a difference. When
the startup process scans for a new timeline, and decides to change recovery
target timeline, there is a window where the recovery target TLI has already
been bumped, but there are no WAL segments from the new timeline in pg_xlog
yet. For example, if we have just replayed up to point 0/
30002D8, on
timeline 1, there is a WAL file called
000000010000000000000003 in pg_xlog
that contains the WAL up to that point. When recovery switches recovery
target timeline to 2, a walsender can immediately try to read WAL from
0/
30002D8, from timeline 2, so it will try to open WAL file
000000020000000000000003. However, that doesn't exist yet - the startup
process hasn't copied that file from the archive yet nor has the walreceiver
streamed it yet, so walsender fails with error "requested WAL segment
000000020000000000000003 has already been removed". That's harmless, in that
the standby will try to reconnect later and by that time the segment is
already created, but error messages that should be ignored are not good.
To fix that, have walsender track the TLI of the last replayed record,
instead of the recovery target timeline. That way walsender will not try to
read anything from timeline 2, until the WAL segment has been created and at
least one record has been replayed from it. The recovery target timeline is
now xlog.c's internal affair, it doesn't need to be exposed in shared memory
anymore.
This fixes the error reported by Thom Brown. depesz the same error message,
but I'm not sure if this fixes his scenario.
Heikki Linnakangas [Thu, 20 Dec 2012 12:01:50 +0000 (14:01 +0200)]
Don't set ThisTimeLineID in checkpointer & bgwriter during recovery.
We used to set it to the current recovery target timeline, but the recovery
target timeline can change during recovery, leaving ThisTimeLineID at an
old value. That seems worse than always leaving it at zero to begin with.
AFAICS there was no good reason to set it in the first place. ThisTimeLineID
is not needed in checkpointer or bgwriter process, until it's time to write
the end-of-recovery checkpoint, and at that point ThisTimeLineID is updated
anyway.
Bruce Momjian [Thu, 20 Dec 2012 12:37:27 +0000 (07:37 -0500)]
Add pg_upgrade comment about mismatch error
Add comment stating that constraint and index names must match.
Heikki Linnakangas [Wed, 19 Dec 2012 12:13:23 +0000 (14:13 +0200)]
Check if we've reached end-of-backup point also if no redo is required.
If you restored from a backup taken from a standby, and the last record in
the backup is the checkpoint record, ie. there is no redo required except
for the checkpoint record, we would fail to notice that we've reached the
end-of-backup point, and the database is consistent. The result was an
error "WAL ends before end of online backup". To fix, move the
have-we-reached-end-of-backup check into CheckRecoveryConsistency(), which
is already responsible for similar checks with minRecoveryPoint, and is
called in the right places.
Backpatch to 9.2, this check and bug did not exist before that.
Peter Eisentraut [Wed, 19 Dec 2012 12:14:27 +0000 (07:14 -0500)]
Rename SQL feature S403 to ARRAY_MAX_CARDINALITY
In an earlier version of the standard, this was called just
"MAX_CARDINALITY".
Peter Eisentraut [Wed, 19 Dec 2012 12:01:11 +0000 (07:01 -0500)]
pg_basebackup: Small message punctuation improvements
Andrew Dunstan [Tue, 18 Dec 2012 21:30:14 +0000 (16:30 -0500)]
Don't include postgres.h in postgres_fe.h for cpluspluscheck.
Error exposed by recent Assert changes.
Complaint from Peter Eisentraut.
Tom Lane [Tue, 18 Dec 2012 21:22:13 +0000 (16:22 -0500)]
Ignore libedit/libreadline while probing for standard functions.
Some versions of libedit expose bogus definitions of setproctitle(),
optreset, and perhaps other symbols that we don't want configure to pick up
on. There was a previous report of similar problems with strlcpy(), which
we addressed in commit
59cf88da91bc88978b05275ebd94ac2d980c4047, but the
problem has evidently grown in scope since then. In hopes of not having to
deal with it again in future, rearrange configure's tests for supplied
functions so that we ignore libedit/libreadline except when probing
specifically for functions we expect them to provide.
Per report from Christoph Berg, though this is slightly more aggressive
than his proposed patch.
Peter Eisentraut [Tue, 18 Dec 2012 06:13:59 +0000 (01:13 -0500)]
Remove allow_nonpic_in_shlib
This was used in a time when a shared libperl or libpython was difficult
to come by. That is obsolete, and the idea behind the flag was never
fully portable anyway and will likely fail on more modern CPU
architectures.
Peter Eisentraut [Tue, 18 Dec 2012 03:45:20 +0000 (22:45 -0500)]
doc: Put PL/pgSQL RAISE USING keywords into a list
Karl O. Pinc
Tom Lane [Tue, 18 Dec 2012 01:15:32 +0000 (20:15 -0500)]
Fix failure to ignore leftover temp tables after a server crash.
During crash recovery, we remove disk files belonging to temporary tables,
but the system catalog entries for such tables are intentionally not
cleaned up right away. Instead, the first backend that uses a temp schema
is expected to clean out any leftover objects therein. This approach
requires that we be careful to ignore leftover temp tables (since any
actual access attempt would fail), *even if their BackendId matches our
session*, if we have not yet established use of the session's corresponding
temp schema. That worked fine in the past, but was broken by commit
debcec7dc31a992703911a9953e299c8d730c778 which incorrectly removed the
rd_islocaltemp relcache flag. Put it back, and undo various changes
that substituted tests like "rel->rd_backend == MyBackendId" for use
of a state-aware flag. Per trouble report from Heikki Linnakangas.
Back-patch to 9.1 where the erroneous change was made. In the back
branches, be careful to add rd_islocaltemp in a spot in the struct that
was alignment padding before, so as not to break existing add-on code.
Tom Lane [Sun, 16 Dec 2012 20:01:55 +0000 (15:01 -0500)]
Fix filling of postpid in bootstrap/standalone mode.
We failed to ever fill the sixth line (LISTEN_ADDR), which caused the
attempt to fill the seventh line (SHMEM_KEY) to fail, so that the shared
memory key never got added to the file in standalone mode. This has been
broken since we added more content to our lock files in 9.1.
To fix, tweak the logic in CreateLockFile to add an empty LISTEN_ADDR
line in standalone mode. This is a tad grotty, but since that function
already knows almost everything there is to know about the contents of
lock files, it doesn't seem that it's any better to hack it elsewhere.
It's not clear how significant this bug really is, since a standalone
backend should never have any children and thus it seems not critical
to be able to check the nattch count of the shmem segment externally.
But I'm going to back-patch the fix anyway.
This problem had escaped notice because of an ancient (and in hindsight
pretty dubious) decision to suppress LOG-level messages by default in
standalone mode; so that the elog(LOG) complaint in AddToDataDirLockFile
that should have warned of the problem didn't do anything. Fixing that
is material for a separate patch though.
Andrew Dunstan [Sun, 16 Dec 2012 17:22:57 +0000 (12:22 -0500)]
Tidy up from frontend Assert change.
Quiet compiler warnings noted by Peter Eisentraut.
Magnus Hagander [Sun, 16 Dec 2012 13:56:51 +0000 (14:56 +0100)]
Properly copy fmgroids.h after clean on Win32
Craig Ringer
Peter Eisentraut [Sun, 16 Dec 2012 08:51:05 +0000 (03:51 -0500)]
doc: Remove extra table column
Not all system catalog description tables have the same number of
columns, and the patch to add oid columns did one bit too much
copy-and-pasting.
Peter Eisentraut [Sat, 15 Dec 2012 05:42:47 +0000 (00:42 -0500)]
doc: Add oid columns to system catalog documentation
Karl O. Pinc and Jeff Davis
Peter Eisentraut [Sat, 15 Dec 2012 05:30:53 +0000 (00:30 -0500)]
doc: Add pg_stat_reset and related functions to index
Andrew Dunstan [Fri, 14 Dec 2012 23:03:07 +0000 (18:03 -0500)]
Provide Assert() for frontend code.
Per discussion on-hackers. psql is converted to use the new code.
Follows a suggestion from Heikki Linnakangas.
Robert Haas [Fri, 14 Dec 2012 20:44:38 +0000 (15:44 -0500)]
Update comment in heapgetpage() regarding PD_ALL_VISIBLE vs. Hot Standby.
Pavan Deolasee, slightly modified by me
Peter Eisentraut [Fri, 14 Dec 2012 04:12:12 +0000 (23:12 -0500)]
NLS: Use msgmerge --previous option
It provides some additional help to translators.
Peter Eisentraut [Fri, 14 Dec 2012 04:00:42 +0000 (23:00 -0500)]
doc: Improve search_path mentions in index
Karl O. Pinc
Heikki Linnakangas [Thu, 13 Dec 2012 17:00:00 +0000 (19:00 +0200)]
Allow a streaming replication standby to follow a timeline switch.
Before this patch, streaming replication would refuse to start replicating
if the timeline in the primary doesn't exactly match the standby. The
situation where it doesn't match is when you have a master, and two
standbys, and you promote one of the standbys to become new master.
Promoting bumps up the timeline ID, and after that bump, the other standby
would refuse to continue.
There's significantly more timeline related logic in streaming replication
now. First of all, when a standby connects to primary, it will ask the
primary for any timeline history files that are missing from the standby.
The missing files are sent using a new replication command TIMELINE_HISTORY,
and stored in standby's pg_xlog directory. Using the timeline history files,
the standby can follow the latest timeline present in the primary
(recovery_target_timeline='latest'), just as it can follow new timelines
appearing in an archive directory.
START_REPLICATION now takes a TIMELINE parameter, to specify exactly which
timeline to stream WAL from. This allows the standby to request the primary
to send over WAL that precedes the promotion. The replication protocol is
changed slightly (in a backwards-compatible way although there's little hope
of streaming replication working across major versions anyway), to allow
replication to stop when the end of timeline reached, putting the walsender
back into accepting a replication command.
Many thanks to Amit Kapila for testing and reviewing various versions of
this patch.
Heikki Linnakangas [Thu, 13 Dec 2012 12:59:13 +0000 (14:59 +0200)]
Make xlog_internal.h includable in frontend context.
This makes unnecessary the ugly hack used to #include postgres.h in
pg_basebackup.
Based on Alvaro Herrera's patch
Heikki Linnakangas [Wed, 12 Dec 2012 11:34:03 +0000 (13:34 +0200)]
In multi-insert, don't go into infinite loop on a huge tuple and fillfactor.
If a tuple is larger than page size minus space reserved for fillfactor,
heap_multi_insert would never find a page that it fits in and repeatedly ask
for a new page from RelationGetBufferForTuple. If a tuple is too large to
fit on any page, taking fillfactor into account, RelationGetBufferForTuple
will always expand the relation. In a normal insert, heap_insert will accept
that and put the tuple on the new page. heap_multi_insert, however, does a
fillfactor check of its own, and doesn't accept the newly-extended page
RelationGetBufferForTuple returns, even though there is no other choice to
make the tuple fit.
Fix that by making the logic in heap_multi_insert more like the heap_insert
logic. The first tuple is always put on the page RelationGetBufferForTuple
gives us, and the fillfactor check is only applied to the subsequent tuples.
Report from David Gould, although I didn't use his patch.
Tom Lane [Wed, 12 Dec 2012 03:09:05 +0000 (22:09 -0500)]
Add defenses against integer overflow in dynahash numbuckets calculations.
The dynahash code requires the number of buckets in a hash table to fit
in an int; but since we calculate the desired hash table size dynamically,
there are various scenarios where we might calculate too large a value.
The resulting overflow can lead to infinite loops, division-by-zero
crashes, etc. I (tgl) had previously installed some defenses against that
in commit
299d1716525c659f0e02840e31fbe4dea3, but that covered only one
call path. Moreover it worked by limiting the request size to work_mem,
but in a 64-bit machine it's possible to set work_mem high enough that the
problem appears anyway. So let's fix the problem at the root by installing
limits in the dynahash.c functions themselves.
Trouble report and patch by Jeff Davis.
Tom Lane [Wed, 12 Dec 2012 00:28:31 +0000 (19:28 -0500)]
Disable event triggers in standalone mode.
Per discussion, this seems necessary to allow recovery from broken event
triggers, or broken indexes on pg_event_trigger.
Dimitri Fontaine
Kevin Grittner [Tue, 11 Dec 2012 20:33:08 +0000 (14:33 -0600)]
Fix performance problems with autovacuum truncation in busy workloads.
In situations where there are over 8MB of empty pages at the end of
a table, the truncation work for trailing empty pages takes longer
than deadlock_timeout, and there is frequent access to the table by
processes other than autovacuum, there was a problem with the
autovacuum worker process being canceled by the deadlock checking
code. The truncation work done by autovacuum up that point was
lost, and the attempt tried again by a later autovacuum worker. The
attempts could continue indefinitely without making progress,
consuming resources and blocking other processes for up to
deadlock_timeout each time.
This patch has the autovacuum worker checking whether it is
blocking any other thread at 20ms intervals. If such a condition
develops, the autovacuum worker will persist the work it has done
so far, release its lock on the table, and sleep in 50ms intervals
for up to 5 seconds, hoping to be able to re-acquire the lock and
try again. If it is unable to get the lock in that time, it moves
on and a worker will try to continue later from the point this one
left off.
While this patch doesn't change the rules about when and what to
truncate, it does cause the truncation to occur sooner, with less
blocking, and with the consumption of fewer resources when there is
contention for the table's lock.
The only user-visible change other than improved performance is
that the table size during truncation may change incrementally
instead of just once.
This problem exists in all supported versions but is infrequently
reported, although some reports of performance problems when
autovacuum runs might be caused by this. Initial commit is just the
master branch, but this should probably be backpatched once the
build farm and general developer usage confirm that there are no
surprising effects.
Jan Wieck
Bruce Momjian [Tue, 11 Dec 2012 20:09:22 +0000 (15:09 -0500)]
Fix pg_upgrade for invalid indexes
All versions of pg_upgrade upgraded invalid indexes caused by CREATE
INDEX CONCURRENTLY failures and marked them as valid. The patch adds a
check to all pg_upgrade versions and throws an error during upgrade or
--check.
Backpatch to 9.2, 9.1, 9.0. Patch slightly adjusted.
Heikki Linnakangas [Tue, 11 Dec 2012 13:57:24 +0000 (15:57 +0200)]
Consistency check should compare last record replayed, not last record read.
EndRecPtr is the last record that we've read, but not necessarily yet
replayed. CheckRecoveryConsistency should compare minRecoveryPoint with the
last replayed record instead. This caused recovery to think it's reached
consistency too early.
Now that we do the check in CheckRecoveryConsistency correctly, we have to
move the call of that function to after redoing a record. The current place,
after reading a record but before replaying it, is wrong. In particular, if
there are no more records after the one ending at minRecoveryPoint, we don't
enter hot standby until one extra record is generated and read by the
standby, and CheckRecoveryConsistency is called. These two bugs conspired
to make the code appear to work correctly, except for the small window
between reading the last record that reaches minRecoveryPoint, and
replaying it.
In the passing, rename recoveryLastRecPtr, which is the last record
replayed, to lastReplayedEndRecPtr. This makes it slightly less confusing
with replayEndRecPtr, which is the last record read that we're about to
replay.
Original report from Kyotaro HORIGUCHI, further diagnosis by Fujii Masao.
Backpatch to 9.0, where Hot Standby subtly changed the test from
"minRecoveryPoint < EndRecPtr" to "minRecoveryPoint <= EndRecPtr". The
former works because where the test is performed, we have always read one
more record than we've replayed.
Andrew Dunstan [Tue, 11 Dec 2012 16:52:45 +0000 (11:52 -0500)]
Add mode where contrib installcheck runs each module in a separately named database.
Normally each module is tested in a database named contrib_regression,
which is dropped and recreated at the beginhning of each pg_regress run.
This new mode, enabled by adding USE_MODULE_DB=1 to the make command
line, runs most modules in a database with the module name embedded in
it.
This will make testing pg_upgrade on clusters with the contrib modules
a lot easier.
Second attempt at this, this time accomodating make versions older
than 3.82.
Still to be done: adapt to the MSVC build system.
Backpatch to 9.0, which is the earliest version it is reasonably
possible to test upgrading from.
Bruce Momjian [Tue, 11 Dec 2012 04:03:17 +0000 (23:03 -0500)]
Fix pg_upgrade -O/-o options
Fix previous commit that added synchronous_commit=off, but broke -O/-o
due to missing space in argument passing.
Backpatch to 9.2.
Peter Eisentraut [Tue, 11 Dec 2012 03:37:19 +0000 (22:37 -0500)]
doc: Remove blastwave.org link
Apparently, this service has been dead since 2008.
Heikki Linnakangas [Mon, 10 Dec 2012 13:54:42 +0000 (15:54 +0200)]
Update minimum recovery point on truncation.
If a file is truncated, we must update minRecoveryPoint. Once a file is
truncated, there's no going back; it would not be safe to stop recovery
at a point earlier than that anymore.
Per report from Kyotaro HORIGUCHI. Backpatch to 8.4. Before that,
minRecoveryPoint was not updated during recovery at all.
Heikki Linnakangas [Fri, 7 Dec 2012 14:29:39 +0000 (16:29 +0200)]
Fix the tracking of min recovery point timeline.
Forgot to update it at the right place. Also, consider checkpoint record
that switches to new timelne to be on the new timeline.
This fixes erroneous "requested timeline 2 does not contain minimum recovery
point" errors, pointed out by Amit Kapila while testing another patch.
Tom Lane [Sun, 9 Dec 2012 05:08:23 +0000 (00:08 -0500)]
Fix assorted bugs in privileges-for-types patch.
Commit
729205571e81b4767efc42ad7beb53663e08d1ff added privileges on data
types, but there were a number of oversights. The implementation of
default privileges for types missed a few places, and pg_dump was
utterly innocent of the whole concept. Per bug #7741 from Nathan Alden,
and subsequent wider investigation.
Tom Lane [Sat, 8 Dec 2012 23:25:48 +0000 (18:25 -0500)]
Support automatically-updatable views.
This patch makes "simple" views automatically updatable, without the need
to create either INSTEAD OF triggers or INSTEAD rules. "Simple" views
are those classified as updatable according to SQL-92 rules. The rewriter
transforms INSERT/UPDATE/DELETE commands on such views directly into an
equivalent command on the underlying table, which will generally have
noticeably better performance than is possible with either triggers or
user-written rules. A view that has INSTEAD OF triggers or INSTEAD rules
continues to operate the same as before.
For the moment, security_barrier views are not considered simple.
Also, we do not support WITH CHECK OPTION. These features may be
added in future.
Dean Rasheed, reviewed by Amit Kapila
Peter Eisentraut [Sat, 8 Dec 2012 12:36:25 +0000 (07:36 -0500)]
Update iso.org page link
The old one is responding with 404.
Bruce Momjian [Fri, 7 Dec 2012 17:26:13 +0000 (12:26 -0500)]
Improve pg_upgrade's status display
Pg_upgrade displays file names during copy and database names during
dump/restore. Andrew Dunstan identified three bugs:
* long file names were being truncated to 60 _leading_ characters, which
often do not change for long file names
* file names were truncated to 60 characters in log files
* carriage returns were being output to log files
This commit fixes these --- it prints 60 _trailing_ characters to the
status display, and full path names without carriage returns to log
files. It also suppresses status output to the log file unless verbose
mode is used.
Simon Riggs [Fri, 7 Dec 2012 14:18:47 +0000 (14:18 +0000)]
Correct xmax test for COPY FREEZE
Simon Riggs [Fri, 7 Dec 2012 13:26:52 +0000 (13:26 +0000)]
Optimize COPY FREEZE with CREATE TABLE also.
Jeff Davis, additional test by me
Simon Riggs [Fri, 7 Dec 2012 12:59:05 +0000 (12:59 +0000)]
Clarify that COPY FREEZE is not a hard rule.
Remove message when FREEZE not honoured,
clarify reasons in comments and docs.
Tom Lane [Fri, 7 Dec 2012 04:09:52 +0000 (23:09 -0500)]
Improve pl/pgsql to support composite-type expressions in RETURN.
For some reason lost in the mists of prehistory, RETURN was only coded to
allow a simple reference to a composite variable when the function's return
type is composite. Allow an expression instead, while preserving the
efficiency of the original code path in the case where the expression is
indeed just a composite variable's name. Likewise for RETURN NEXT.
As is true in various other places, the supplied expression must yield
exactly the number and data types of the required columns. There was some
discussion of relaxing that for pl/pgsql, but no consensus yet, so this
patch doesn't address that.
Asif Rehman, reviewed by Pavel Stehule
Alvaro Herrera [Thu, 6 Dec 2012 17:57:52 +0000 (14:57 -0300)]
Background worker processes
Background workers are postmaster subprocesses that run arbitrary
user-specified code. They can request shared memory access as well as
backend database connections; or they can just use plain libpq frontend
database connections.
Modules listed in shared_preload_libraries can register background
workers in their _PG_init() function; this is early enough that it's not
necessary to provide an extra GUC option, because the necessary extra
resources can be allocated early on. Modules can install more than one
bgworker, if necessary.
Care is taken that these extra processes do not interfere with other
postmaster tasks: only one such process is started on each ServerLoop
iteration. This means a large number of them could be waiting to be
started up and postmaster is still able to quickly service external
connection requests. Also, shutdown sequence should not be impacted by
a worker process that's reasonably well behaved (i.e. promptly responds
to termination signals.)
The current implementation lets worker processes specify their start
time, i.e. at what point in the server startup process they are to be
started: right after postmaster start (in which case they mustn't ask
for shared memory access), when consistent state has been reached
(useful during recovery in a HOT standby server), or when recovery has
terminated (i.e. when normal backends are allowed).
In case of a bgworker crash, actions to take depend on registration
data: if shared memory was requested, then all other connections are
taken down (as well as other bgworkers), just like it were a regular
backend crashing. The bgworker itself is restarted, too, within a
configurable timeframe (which can be configured to be never).
More features to add to this framework can be imagined without much
effort, and have been discussed, but this seems good enough as a useful
unit already.
An elementary sample module is supplied.
Author: Álvaro Herrera
This patch is loosely based on prior patches submitted by KaiGai Kohei,
and unsubmitted code by Simon Riggs.
Reviewed by: KaiGai Kohei, Markus Wanner, Andres Freund,
Heikki Linnakangas, Simon Riggs, Amit Kapila
Tom Lane [Thu, 6 Dec 2012 04:42:51 +0000 (23:42 -0500)]
Fix intermittent crash in DROP INDEX CONCURRENTLY.
When deleteOneObject closes and reopens the pg_depend relation,
we must see to it that the relcache pointer held by the calling function
(typically performMultipleDeletions) is updated. Usually the relcache
entry is retained so that the pointer value doesn't change, which is why
the problem had escaped notice ... but after a cache flush event there's
no guarantee that the same memory will be reassigned. To fix, change
the recursive functions' APIs so that we pass around a "Relation *"
not just "Relation".
Per investigation of occasional buildfarm failures. This is trivial
to reproduce with -DCLOBBER_CACHE_ALWAYS, which points up the sad
lack of any buildfarm member running that way on a regular basis.
Alvaro Herrera [Thu, 6 Dec 2012 02:09:46 +0000 (23:09 -0300)]
Update comment at top of index_create
I neglected to update it in commit
f4c4335.
Michael Paquier
Tom Lane [Wed, 5 Dec 2012 23:27:50 +0000 (18:27 -0500)]
Ensure recovery pause feature doesn't pause unless users can connect.
If we're not in hot standby mode, then there's no way for users to connect
to reset the recoveryPause flag, so we shouldn't pause. The code was aware
of this but the test to see if pausing was safe was seriously inadequate:
it wasn't paying attention to reachedConsistency, and besides what it was
testing was that we could legally enter hot standby, not that we have
done so. Get rid of that in favor of checking LocalHotStandbyActive,
which because of the coding in CheckRecoveryConsistency is tantamount to
checking that we have told the postmaster to enter hot standby.
Also, move the recoveryPausesHere() call that reacts to asynchronous
recoveryPause requests so that it's not in the middle of application of a
WAL record. I put it next to the recoveryStopsHere() call --- in future
those are going to need to interact significantly, so this seems like a
good waystation.
Also, don't bother trying to read another WAL record if we've already
decided not to continue recovery. This was no big deal when the code was
written originally, but now that reading a record might entail actions like
fetching an archive file, it seems a bit silly to do it like that.
Per report from Jeff Janes and subsequent discussion. The pause feature
needs quite a lot more work, but this gets rid of some indisputable bugs,
and seems safe enough to back-patch.
Heikki Linnakangas [Wed, 5 Dec 2012 19:00:59 +0000 (21:00 +0200)]
Oops, meant to change the comment in writeTimeLineHistory.
Simon Riggs [Wed, 5 Dec 2012 13:28:03 +0000 (13:28 +0000)]
Must not reach consistency before XLOG_BACKUP_RECORD
When waiting for an XLOG_BACKUP_RECORD the minRecoveryPoint
will be incorrect, so we must not declare recovery as consistent
before we have seen the record. Major bug allowing recovery to end
too early in some cases, allowing people to see inconsistent db.
This patch to HEAD and 9.2, other fix required for 9.1 and 9.0
Simon Riggs and Andres Freund, bug report by Jeff Janes