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pg-rex/syncrep.git
13 years agoOnly DISCARD ALL should be in the command_no_begin list.
Itagaki Takahiro [Tue, 28 Sep 2010 06:55:25 +0000 (15:55 +0900)]
Only DISCARD ALL should be in the command_no_begin list.
We allowes DISCARD PLANS and TEMP in a transaction.

13 years agoAdd DISCARD to the command_no_begin list for AUTOCOMMIT=off.
Itagaki Takahiro [Tue, 28 Sep 2010 05:20:17 +0000 (14:20 +0900)]
Add DISCARD to the command_no_begin list for AUTOCOMMIT=off.
Backpatch to 8.3.

Reported by Sergey Burladyan.

13 years agoAdd a SECURITY LABEL command.
Robert Haas [Tue, 28 Sep 2010 00:55:27 +0000 (20:55 -0400)]
Add a SECURITY LABEL command.

This is intended as infrastructure to support integration with label-based
mandatory access control systems such as SE-Linux. Further changes (mostly
hooks) will be needed, but this is a big chunk of it.

KaiGai Kohei and Robert Haas

13 years agoAdd "(change requires restart)" note to some postgresql.conf parameters.
Robert Haas [Mon, 27 Sep 2010 13:14:14 +0000 (09:14 -0400)]
Add "(change requires restart)" note to some postgresql.conf parameters.

Devrim GÜNDÜZ

13 years agoImprove git_changelog as per discussion with Robert Haas.
Tom Lane [Mon, 27 Sep 2010 00:22:17 +0000 (20:22 -0400)]
Improve git_changelog as per discussion with Robert Haas.

1. Resurrect the behavior where old commits on master will have Branch:
labels for branches sprouted after the commit was made.  I'm still
dubious about this mode, but if you want it, say --post-date or -p.

2. Annotate the Branch: labels with the release or branch in which the
commit was publicly released.  For example, on a release branch you could
see
Branch: REL8_3_STABLE Release: REL8_3_2 [92c3a8004] 2008-03-29 00:15:37 +0000
showing that the fix was released in 8.3.2.  Commits on master will
usually instead have notes like
Branch: master Release: REL8_4_BR [6fc9d4272] 2008-03-29 00:15:28 +0000
showing that this commit is ancestral to release branches 8.4 and later.
If no Release: marker appears, the commit hasn't yet made it into any
release.

3. Add support for release branches older than 7.4.

4. The implementation is improved by running git log on each branch only
back to where the branch sprouts from master.  This saves a good deal
of time (about 50% of the runtime when generating the complete history).
We generate the post-date-mode tags via a direct understanding that
they should be applied to master commits made before the branch sprouted,
rather than backing into them via matching (which isn't any too
reliable when people used identical log messages for successive commits).

13 years agoAdd ALTER TYPE ... ADD/DROP/ALTER/RENAME ATTRIBUTE
Peter Eisentraut [Sun, 26 Sep 2010 11:41:03 +0000 (14:41 +0300)]
Add ALTER TYPE ... ADD/DROP/ALTER/RENAME ATTRIBUTE

Like with tables, this also requires allowing the existence of
composite types with zero attributes.

reviewed by KaiGai Kohei

13 years agoStill more tweaking of git_changelog.
Tom Lane [Sun, 26 Sep 2010 05:51:20 +0000 (01:51 -0400)]
Still more tweaking of git_changelog.

1. Don't assume there's only one candidate match; check them all and use the
one with the closest timestamp.  Avoids funny output when someone makes
several successive commits with the same log message, as certain people
have been known to do.

2. When the same commit (with the same SHA1) is reachable from multiple
branch tips, don't report it for all the branches; instead report it only
for the first such branch.  Given our development practices, this case
arises only for commits that occurred before a given branch split off from
master.  The original coding blamed old commits on *all* the branches,
which isn't terribly useful; the new coding blames such a commit only on
master.

13 years agoFix some more bugs in git_changelog.
Tom Lane [Sun, 26 Sep 2010 04:21:51 +0000 (00:21 -0400)]
Fix some more bugs in git_changelog.

1. Don't forget the last (oldest) commit on the oldest branch.

2. When considering which commit to print next, if two alternatives have
the same "distortion" score (which is actually the normal case, since
generally the "distortion" is 0), then choose the later timestamp to
print first.  I don't know where Robert got the idea to ignore timestamps
and sort by branch age, but it wasn't a good idea: the resulting ordering
of commits was just plain bizarre anywhere that some branches had many
fewer commits than others, which is the typical situation for us.

13 years agoMinor improvements to git_changelog.
Tom Lane [Sun, 26 Sep 2010 00:50:57 +0000 (20:50 -0400)]
Minor improvements to git_changelog.

Avoid depending on Date::Calc, which isn't in a basic Perl installation,
when we can equally well use Time::Local which is.  Also fix the parsing
of timestamps to take heed of the timezone.  (It looks like cvs2git emitted
all commit timestamps with zone GMT, so this refinement might've looked
unnecessary when looking at converted data; but it's needed now.)

Fix parsing of message bodies so that blank lines that may or may not get
emitted by "git log" aren't confused with real data.  This avoids strange
formatting of the oldest commit on a branch.

Check child-process exit status, so that we actually notice if "git log"
fails, and so that we don't accumulate zombie children.

13 years agoRename git_topo_order -> git_changelog, per discussion.
Tom Lane [Sat, 25 Sep 2010 23:31:26 +0000 (19:31 -0400)]
Rename git_topo_order -> git_changelog, per discussion.

13 years agoFix another join removal bug: the check on PlaceHolderVars was wrong.
Tom Lane [Sat, 25 Sep 2010 23:03:50 +0000 (19:03 -0400)]
Fix another join removal bug: the check on PlaceHolderVars was wrong.

The previous coding would decide that join removal was unsafe upon finding
a PlaceHolderVar that needed to be evaluated at the inner rel and then used
above the join.  However, this fails to cover the case of PlaceHolderVars
that refer to both the inner rel and some other rels.  Per bug report from
Andrus.

13 years agoFix man page markup for <cmdsynopsis> with multiple variants
Peter Eisentraut [Sat, 25 Sep 2010 06:57:09 +0000 (09:57 +0300)]
Fix man page markup for <cmdsynopsis> with multiple variants

Command synopses using <cmdsynopsis> with multiple variants previously used
<sbr> to break lines between variants.  The new man page toolchain introduced
in 9.0 makes a mess out of that, and that markup was probably wrong all along,
because <sbr> is supposed to break lines within a synopsis, not between them.
So fix that by using multiple <cmdsynopsis> elements inside <refsynopsisdiv>.

backpatched to 9.0

13 years agoIn levenshtein_internal(), describe algorithm a bit more clearly.
Robert Haas [Fri, 24 Sep 2010 18:35:01 +0000 (14:35 -0400)]
In levenshtein_internal(), describe algorithm a bit more clearly.

13 years agoStill more .gitignore cleanup.
Tom Lane [Fri, 24 Sep 2010 17:48:15 +0000 (13:48 -0400)]
Still more .gitignore cleanup.

Fix overly-enthusiastic ignores, as identified by
git ls-files -i --exclude-standard

13 years agoPrevent doc/src/sgml subdirs from being created, instead of deleting
Alvaro Herrera [Fri, 24 Sep 2010 05:32:52 +0000 (01:32 -0400)]
Prevent doc/src/sgml subdirs from being created, instead of deleting
them after the fact.  This is a more elegant fix for bug #5595.

13 years agoAdd contrib/xml2/pgxml.sql to .gitignore
Robert Haas [Fri, 24 Sep 2010 02:00:26 +0000 (22:00 -0400)]
Add contrib/xml2/pgxml.sql to .gitignore

Kevin Grittner

13 years agoReplace doc references to install-win32 with install-windows.
Robert Haas [Thu, 23 Sep 2010 21:44:22 +0000 (17:44 -0400)]
Replace doc references to install-win32 with install-windows.

Windows is not necessarily 32-bit, any more.

As suggested by Mike Toews.

13 years agoProcessIncomingNotify *must* reset notifyInterruptOccurred when called.
Tom Lane [Thu, 23 Sep 2010 21:16:51 +0000 (17:16 -0400)]
ProcessIncomingNotify *must* reset notifyInterruptOccurred when called.

This was broken in 9.0 by careless addition of an early-exit path.
Bug report and diagnosis by Jeff Davis.

13 years agoPrevent show_session_authorization from crashing when session_authorization
Tom Lane [Thu, 23 Sep 2010 20:53:16 +0000 (16:53 -0400)]
Prevent show_session_authorization from crashing when session_authorization
hasn't been set.

The only known case where this can happen is when show_session_authorization
is invoked in an autovacuum process, which is possible if an index function
calls it, as for example in bug #5669 from Andrew Geery.  We could perhaps
try to return a sensible value, such as the name of the cluster-owning
superuser; but that seems like much more trouble than the case is worth,
and in any case it could create new possible failure modes.  Simply
returning an empty string seems like the most appropriate fix.

Back-patch to all supported versions, even those before autovacuum, just
in case there's another way to provoke this crash.

13 years agoAvoid sharing subpath list structure when flattening nested AppendRels.
Tom Lane [Thu, 23 Sep 2010 19:34:56 +0000 (15:34 -0400)]
Avoid sharing subpath list structure when flattening nested AppendRels.

In some situations the original coding led to corrupting the child AppendRel's
subpaths list, effectively adding other members of the parent's list to it.
This was usually masked because we never made any further use of the child's
list, but given the right combination of circumstances, we could do so.  The
visible symptom would be a relation getting scanned twice, as in bug #5673
from David Schmitt.

Backpatch to 8.2, which is as far back as the risky coding appears.  The
example submitted by David only fails in 8.4 and later, but I'm not convinced
that there aren't any even-more-obscure cases where 8.2 and 8.3 would fail.

13 years agoMake _outPathInfo print the relid set of the path's parent rel.
Tom Lane [Thu, 23 Sep 2010 19:16:49 +0000 (15:16 -0400)]
Make _outPathInfo print the relid set of the path's parent rel.

We can't actually print the parent RelOptInfo in toto, because that would
lead to infinite recursion.  But it's safe enough to reach into the parent
and print its identifying relids, and that makes it a whole lot easier
to figure out what a Path represents.  Should have done this years ago.

13 years agoInitialize tableoid field correctly when dumping foreign data wrappers and
Heikki Linnakangas [Thu, 23 Sep 2010 11:49:00 +0000 (14:49 +0300)]
Initialize tableoid field correctly when dumping foreign data wrappers and
servers. AFAICT it's harmless at the moment because nothing can depend on
either, but as soon as we introduce an object type with such dependencies,
tableoid needs to be set or pg_dump will fail to interpret the dependencies
correctly. In theory, I guess the uninitialized garbage in tableoid could
cause the object to be mistaken for some other object with same OID as well.

13 years agoRe-allow input of Julian dates prior to 0001-01-01 AD.
Tom Lane [Thu, 23 Sep 2010 03:48:07 +0000 (23:48 -0400)]
Re-allow input of Julian dates prior to 0001-01-01 AD.

This was unintentionally broken in 8.4 while tightening up checking of
ordinary non-Julian date inputs to forbid references to "year zero".
Per bug #5672 from Benjamin Gigot.

13 years agoMore fixes for libpq's .gitignore file.
Tom Lane [Thu, 23 Sep 2010 06:32:03 +0000 (02:32 -0400)]
More fixes for libpq's .gitignore file.

The previous patches failed to cover a lot of symlinks that are only
added in platform-specific cases.  Make the lists match what's in the
Makefile for each branch.

13 years agoFix inconsistent capitalization of "PL/pgSQL".
Robert Haas [Thu, 23 Sep 2010 01:57:37 +0000 (21:57 -0400)]
Fix inconsistent capitalization of "PL/pgSQL".

Josh Kupershmidt

13 years agoDo some copy-editing on the Git usage docs.
Tom Lane [Thu, 23 Sep 2010 00:22:26 +0000 (20:22 -0400)]
Do some copy-editing on the Git usage docs.

13 years agoFix remaining stray references to CVS.
Tom Lane [Wed, 22 Sep 2010 23:51:39 +0000 (19:51 -0400)]
Fix remaining stray references to CVS.

These are just cosmetic and don't seem worth back-patching far.
I put them into 9.0 just because it was trivial to do so.

13 years agoAdd assorted other documentation build targets to documentation gitignore.
Tom Lane [Wed, 22 Sep 2010 22:08:45 +0000 (18:08 -0400)]
Add assorted other documentation build targets to documentation gitignore.

13 years agoSome more gitignore cleanups: cover contrib and PL regression test outputs.
Tom Lane [Wed, 22 Sep 2010 21:21:53 +0000 (17:21 -0400)]
Some more gitignore cleanups: cover contrib and PL regression test outputs.

Also do some further work in the back branches, where quite a bit wasn't
covered by Magnus' original back-patch.

13 years agoAdd gitignore files for ecpg regression tests.
Magnus Hagander [Wed, 22 Sep 2010 19:49:06 +0000 (21:49 +0200)]
Add gitignore files for ecpg regression tests.

Backpatch to 8.2 as that's how far the structure looks the same.

13 years agoRemove anonymous cvs instructions, and replace them with instructions
Magnus Hagander [Wed, 22 Sep 2010 18:10:28 +0000 (20:10 +0200)]
Remove anonymous cvs instructions, and replace them with instructions
for git. Change other references from cvs to git as well.

13 years agoConvert cvsignore to gitignore, and add .gitignore for build targets.
Magnus Hagander [Wed, 22 Sep 2010 10:57:04 +0000 (12:57 +0200)]
Convert cvsignore to gitignore, and add .gitignore for build targets.

13 years agoTypo fix. "CVS" is not the same thing as "CSV".
Robert Haas [Wed, 22 Sep 2010 10:37:46 +0000 (06:37 -0400)]
Typo fix.  "CVS" is not the same thing as "CSV".

13 years agopgcvslog isn't useful anymore, either.
Tom Lane [Tue, 21 Sep 2010 21:45:55 +0000 (17:45 -0400)]
pgcvslog isn't useful anymore, either.

See git_topo_order instead.

13 years agoadd_cvs_markers isn't useful anymore.
Tom Lane [Tue, 21 Sep 2010 21:40:24 +0000 (17:40 -0400)]
add_cvs_markers isn't useful anymore.

13 years agoSome more cleanup of CVS keyword noise.
Tom Lane [Tue, 21 Sep 2010 21:18:57 +0000 (17:18 -0400)]
Some more cleanup of CVS keyword noise.

Poking around for remaining occurrences of CVS keyword strings, I came
across one that apparently reflects the use of a $Revision: ...$ string
in the original input data.  Dunno why anybody would be using that in
an MTA's Received: lines, but there it is.  Put it back to the way that
it was originally, according to inspection of the CVS repo.

13 years agoThe port/pg_latch.c symlink ought to be removed by make distclean.
Tom Lane [Tue, 21 Sep 2010 20:53:25 +0000 (16:53 -0400)]
The port/pg_latch.c symlink ought to be removed by make distclean.

Not sure why these symlinks are removed here and not in the port/
Makefile, but I won't second-guess that choice right now.

13 years agoFix a missed explanation of auto-analyze threshold, per Joe Miller.
Tom Lane [Tue, 21 Sep 2010 20:40:41 +0000 (16:40 -0400)]
Fix a missed explanation of auto-analyze threshold, per Joe Miller.

13 years agoTrivial typo fix.
Tom Lane [Tue, 21 Sep 2010 18:16:00 +0000 (14:16 -0400)]
Trivial typo fix.

13 years agoRemove various mentions of CVS from src/tools/RELEASE_CHANGES.
Robert Haas [Tue, 21 Sep 2010 04:25:07 +0000 (00:25 -0400)]
Remove various mentions of CVS from src/tools/RELEASE_CHANGES.

13 years agogit_topo_order script, to match up commits across branches.
Robert Haas [Tue, 21 Sep 2010 04:18:20 +0000 (00:18 -0400)]
git_topo_order script, to match up commits across branches.

This script is intended to substitute for cvs2cl in generating release
notes and scrutinizing what got back-patched to which branches.

Script by me.  Support for --since by Alex Hunsaker.

13 years agoRename README.CVS to README.git and change references in it.
Magnus Hagander [Tue, 21 Sep 2010 10:40:16 +0000 (12:40 +0200)]
Rename README.CVS to README.git and change references in it.

13 years agoRemove cvs keywords from all files.
Magnus Hagander [Mon, 20 Sep 2010 20:08:53 +0000 (22:08 +0200)]
Remove cvs keywords from all files.

13 years agoUpdate HOT README about when single-page vacuums happen.
Bruce Momjian [Sun, 19 Sep 2010 17:51:44 +0000 (17:51 +0000)]
Update HOT README about when single-page vacuums happen.

13 years agoReplace last remaining $Id$ with $PostgreSQL$.
Tom Lane [Sun, 19 Sep 2010 16:27:17 +0000 (16:27 +0000)]
Replace last remaining $Id$ with $PostgreSQL$.

13 years agoFix several broken $PostgreSQL$ keywords. Noted while experimenting
Tom Lane [Sun, 19 Sep 2010 16:17:45 +0000 (16:17 +0000)]
Fix several broken $PostgreSQL$ keywords.  Noted while experimenting
with Magnus's script to remove these.

13 years agoMake sure we wait for protocol-level EOF when ending binary COPY IN.
Tom Lane [Sat, 18 Sep 2010 20:10:15 +0000 (20:10 +0000)]
Make sure we wait for protocol-level EOF when ending binary COPY IN.

The previous coding just terminated the COPY immediately after seeing
the EOF marker (-1 where a row field count is expected).  The expected
CopyDone or CopyFail message just got thrown away later, since we weren't
in COPY mode anymore.  This behavior complicated matters for the JDBC
driver, and arguably was the wrong thing in any case since a CopyFail
message after the marker wouldn't be honored.

Note that there is a behavioral change here: extra data after the EOF
marker was silently ignored before, but now it will cause an error.
Hence not back-patching, although this is arguably a bug.

Per report and patch by Kris Jurka.

13 years agoGive a suitable HINT when an INSERT's data source is a RowExpr containing
Tom Lane [Sat, 18 Sep 2010 18:37:01 +0000 (18:37 +0000)]
Give a suitable HINT when an INSERT's data source is a RowExpr containing
the same number of columns expected by the insert.  This suggests that there
were extra parentheses that converted the intended column list into a row
expression.

Original patch by Marko Tiikkaja, rather heavily editorialized by me.

13 years agoMove pg_db_role_setting docs to correct place in alphabetical order.
Robert Haas [Fri, 17 Sep 2010 18:49:54 +0000 (18:49 +0000)]
Move pg_db_role_setting docs to correct place in alphabetical order.

13 years agoRemove duplicated code left behind by my recent refactoring of comment.c
Robert Haas [Fri, 17 Sep 2010 02:49:10 +0000 (02:49 +0000)]
Remove duplicated code left behind by my recent refactoring of comment.c

These checks are also present in objectaddress.c, so there's no need to
recheck here.

13 years agoAdd some documentation about how we WAL-log filesystem actions.
Tom Lane [Fri, 17 Sep 2010 00:42:39 +0000 (00:42 +0000)]
Add some documentation about how we WAL-log filesystem actions.
Per a question from Robert Haas.

13 years agoTreat exit code 128 (ERROR_WAIT_NO_CHILDREN) as non-fatal on Win32,
Magnus Hagander [Thu, 16 Sep 2010 20:37:13 +0000 (20:37 +0000)]
Treat exit code 128 (ERROR_WAIT_NO_CHILDREN) as non-fatal on Win32,
since it can happen when a process fails to start when the system
is under high load.

Per several bug reports and many peoples investigation.

Back-patch to 8.4, which is as far back as the "deadman-switch"
for shared memory access exists.

13 years agoStamp 9.0 release notes with expected release date; also some last-minute
Tom Lane [Thu, 16 Sep 2010 18:15:21 +0000 (18:15 +0000)]
Stamp 9.0 release notes with expected release date; also some last-minute
copy-editing.

13 years agoFix bad grammar.
Tom Lane [Thu, 16 Sep 2010 14:31:20 +0000 (14:31 +0000)]
Fix bad grammar.

13 years agoFix two new-in-9.0 bugs in hstore.
Tom Lane [Thu, 16 Sep 2010 02:54:01 +0000 (02:54 +0000)]
Fix two new-in-9.0 bugs in hstore.

There was an incorrect Assert in hstoreValidOldFormat(), which would cause
immediate core dumps when attempting to work with pre-9.0 hstore data,
but of course only in an assert-enabled build.

Also, ghstore_decompress() incorrectly applied DatumGetHStoreP() to a datum
that wasn't actually an hstore, but rather a ghstore (ie, a gist signature
bitstring).  That used to be harmless, but could now result in misbehavior
if the hstore format conversion code happened to trigger.  In reality,
since ghstore is not marked toastable (and doesn't need to be), this
function is useless anyway; we can lobotomize it down to returning the
passed-in pointer.

Both bugs found by Andrew Gierth, though this isn't exactly his proposed
patch.

13 years agoAdd a compatibility note about plpgsql's treatment of SELECT INTO rec.fld
Tom Lane [Wed, 15 Sep 2010 17:45:57 +0000 (17:45 +0000)]
Add a compatibility note about plpgsql's treatment of SELECT INTO rec.fld
when fld is of composite type.  Per discussion of bug #5644 from Valentine
Gogichashvili.

13 years agoFix two typos in comments, spotted by Fujii Masao and Thom Brown
Heikki Linnakangas [Wed, 15 Sep 2010 13:58:22 +0000 (13:58 +0000)]
Fix two typos in comments, spotted by Fujii Masao and Thom Brown

13 years agoUse a latch to make startup process wake up and replay immediately when
Heikki Linnakangas [Wed, 15 Sep 2010 10:35:05 +0000 (10:35 +0000)]
Use a latch to make startup process wake up and replay immediately when
new WAL arrives via streaming replication. This reduces the latency, and
also allows us to use a longer polling interval, which is good for energy
efficiency.

We still need to poll to check for the appearance of a trigger file, but
the interval is now 5 seconds (instead of 100ms), like when waiting for
a new WAL segment to appear in WAL archive.

13 years agoSimplify Windows implementation of latches. There's no need to keep a
Heikki Linnakangas [Wed, 15 Sep 2010 10:06:21 +0000 (10:06 +0000)]
Simplify Windows implementation of latches. There's no need to keep a
dynamic pool of event handles, we can permanently assign one for each
shared latch. Thanks to that, we no longer need a separate shared memory
block for latches, and we don't need to know in advance how many shared
latches there is, so you no longer need to remember to update
NumSharedLatches when you introduce a new latch to the system.

13 years agoDon't call OwnLatch while holding a spinlock. OwnLatch can elog() under
Heikki Linnakangas [Wed, 15 Sep 2010 06:51:19 +0000 (06:51 +0000)]
Don't call OwnLatch while holding a spinlock. OwnLatch can elog() under
some "can't happen" scenarios, and spinlocks should only be held for
a few instructions anyway. As pointed out by Fujii Masao.

13 years agoFix join-removal logic for pseudoconstant and outerjoin-delayed quals.
Tom Lane [Tue, 14 Sep 2010 23:15:29 +0000 (23:15 +0000)]
Fix join-removal logic for pseudoconstant and outerjoin-delayed quals.

In these cases a qual can get marked with the removable rel in its
required_relids, but this is just to schedule its evaluation correctly, not
because it really depends on the rel.  We were assuming that, in effect,
we could throw away *all* quals so marked, which is nonsense.  Tighten up
the logic to be a little more paranoid about which quals belong to the
outer join being considered for removal, and arrange for all quals that
don't belong to be updated so they will still get evaluated correctly.

Also fix another problem that happened to be exposed by this test case,
which was that make_join_rel() was failing to notice some cases where
a constant-false qual could be used to prove a join relation empty.  If it's
a pushed-down constant false, then the relation is empty even if it's an
outer join, because the qual applies after the outer join expansion.

Per report from Nathan Grange.  Back-patch into 9.0.

13 years agoOops, the timeout argument to WaitLatchOrSocket is in microseconds, not
Heikki Linnakangas [Tue, 14 Sep 2010 13:35:14 +0000 (13:35 +0000)]
Oops, the timeout argument to WaitLatchOrSocket is in microseconds, not
milliseconds.

13 years agoDon't warn about an in-progress online backup, when we're recovering from
Heikki Linnakangas [Tue, 14 Sep 2010 08:05:33 +0000 (08:05 +0000)]
Don't warn about an in-progress online backup, when we're recovering from
an online backup instead of performing one. pg_ctl can detect that by
checking if recovery.conf exists.

Backup label file is renamed away early in recovery, so the window where
backup label exists during recovery is normally very small, but you can run
into it e.g if restore_command is set incorrectly and the startup process
never finds even the first WAL segment containing the checkpoint record to
start recovery from.

Fujii Masao with comments by me.

13 years agoAdd a comment noting that the owner_pid test in OwnLatch is just a sanity
Heikki Linnakangas [Mon, 13 Sep 2010 18:01:20 +0000 (18:01 +0000)]
Add a comment noting that the owner_pid test in OwnLatch is just a sanity
check, per request by Jeff Davis.

13 years agoElaborate on what gets stored in pg_authid.rolpasswd.
Robert Haas [Mon, 13 Sep 2010 17:02:34 +0000 (17:02 +0000)]
Elaborate on what gets stored in pg_authid.rolpasswd.

Also, add cross-reference from pg_shadow.passwd to pg_authid.rolpasswd and
fix a bit of markup I muffed in my previous commit.

Per discussion with Josh Kupershmidt.

13 years agoRemove prototype for non-existent function from walreceiver.h. Tidy up by
Heikki Linnakangas [Mon, 13 Sep 2010 10:14:25 +0000 (10:14 +0000)]
Remove prototype for non-existent function from walreceiver.h. Tidy up by
separating prototypes for functions in walreceiver.c and walreceiverfuncs.c
with comments.

13 years agoProcess options from the startup packed in walsender. Only few options
Heikki Linnakangas [Mon, 13 Sep 2010 09:00:30 +0000 (09:00 +0000)]
Process options from the startup packed in walsender. Only few options
make sense for walsender, but for example application_name and client_encoding
do. We still don't apply per-role settings from pg_db_role_setting, because
that would require connecting to a database to read the table.

Fujii Masao

13 years agoDon't try aligning comments for new archive_command Win32 doc example;
Bruce Momjian [Mon, 13 Sep 2010 01:35:46 +0000 (01:35 +0000)]
Don't try aligning comments for new archive_command Win32 doc example;
it doesn't work.

Backpatch to 9.0.X.

13 years agoLink from pg_shadow docs to pg_authid docs.
Robert Haas [Mon, 13 Sep 2010 01:23:35 +0000 (01:23 +0000)]
Link from pg_shadow docs to pg_authid docs.

Per discussion with Josh Kupershmidt.

13 years agoRe-add documentation for Win32 copy syntax for archive_command.
Bruce Momjian [Sun, 12 Sep 2010 13:47:12 +0000 (13:47 +0000)]
Re-add documentation for Win32 copy syntax for archive_command.

Backpatch to 9.0.X.

13 years agoSERIALIZABLE transactions are actually implemented beneath the covers with
Joe Conway [Sat, 11 Sep 2010 18:38:58 +0000 (18:38 +0000)]
SERIALIZABLE transactions are actually implemented beneath the covers with
transaction snapshots, i.e. a snapshot registered at the beginning of
a transaction. Change variable naming and comments to reflect this reality
in preparation for a future, truly serializable mode, e.g.
Serializable Snapshot Isolation (SSI).

For the moment transaction snapshots are still used to implement
SERIALIZABLE, but hopefully not for too much longer. Patch by Kevin
Grittner and Dan Ports with review and some minor wording changes by me.

13 years agoAdd missing #includes, needed on some platforms. This should make
Heikki Linnakangas [Sat, 11 Sep 2010 16:26:04 +0000 (16:26 +0000)]
Add missing #includes, needed on some platforms. This should make
the unixware buildfarm animals happy again.

13 years agoIntroduce latches. A latch is a boolean variable, with the capability to
Heikki Linnakangas [Sat, 11 Sep 2010 15:48:04 +0000 (15:48 +0000)]
Introduce latches. A latch is a boolean variable, with the capability to
wait until it is set. Latches can be used to reliably wait until a signal
arrives, which is hard otherwise because signals don't interrupt select()
on some platforms, and even when they do, there's race conditions.

On Unix, latches use the so called self-pipe trick under the covers to
implement the sleep until the latch is set, without race conditions. On
Windows, Windows events are used.

Use the new latch abstraction to sleep in walsender, so that as soon as
a transaction finishes, walsender is woken up to immediately send the WAL
to the standby. This reduces the latency between master and standby, which
is good.

Preliminary work by Fujii Masao. The latch implementation is by me, with
helpful comments from many people.

13 years agoCursor names in the backend are not case-sensitve. This change makes sure that
Michael Meskes [Fri, 10 Sep 2010 10:13:20 +0000 (10:13 +0000)]
Cursor names in the backend are not case-sensitve. This change makes sure that
ecpg also does not regard cursor names as case-sensitive.

Thanks to Zoltan Boszormenyi for the patch.

13 years agoRemove obsolete claim that gzip is needed while installing PG's documentation.
Tom Lane [Thu, 9 Sep 2010 17:19:40 +0000 (17:19 +0000)]
Remove obsolete claim that gzip is needed while installing PG's documentation.
It isn't, now that we ship the docs as loose files rather than a sub-tarball.

Also adjust the wording in a couple of places to make the lists of required
software read more consistently.

13 years agoDoc fixes:
Bruce Momjian [Thu, 9 Sep 2010 00:48:22 +0000 (00:48 +0000)]
Doc fixes:

- remove excessive table cells
- moving function parameters into function tags rather than having
  them being considered separate
- add return type column on XML2 contrib module functions list and
  removing return types from function
- add table header to XML2 contrib parameter table

Thom Brown

Backpatch to 9.0.X.

13 years agoAdd tip about building plpython 2 and 3. Fix link to Python docs.
Peter Eisentraut [Wed, 8 Sep 2010 20:35:51 +0000 (20:35 +0000)]
Add tip about building plpython 2 and 3.  Fix link to Python docs.

13 years agoClarify that surrogate pairs are not encoded in UTF-8 directly
Peter Eisentraut [Tue, 7 Sep 2010 18:54:09 +0000 (18:54 +0000)]
Clarify that surrogate pairs are not encoded in UTF-8 directly

13 years agoModify pg_upgrade to set/restore all environment variables related to
Bruce Momjian [Tue, 7 Sep 2010 14:10:30 +0000 (14:10 +0000)]
Modify pg_upgrade to set/restore all environment variables related to
collation/encoding to match English when reading controldata.  This now
matches the English variable setting used by pg_regress.c.

Backpatch to 9.0.X.

13 years agoGROUP BY can only infer functional dependency from non-deferrable primary keys.
Tom Lane [Sun, 5 Sep 2010 15:45:42 +0000 (15:45 +0000)]
GROUP BY can only infer functional dependency from non-deferrable primary keys.

Peter's original patch had this right, but I dropped the check while revising
the code to search pg_constraint instead of pg_index.  Spotted by Dean Rasheed.

13 years agoPad the ps_status display with nulls, not blanks, on Darwin.
Tom Lane [Sat, 4 Sep 2010 17:45:56 +0000 (17:45 +0000)]
Pad the ps_status display with nulls, not blanks, on Darwin.

A long time ago, this didn't work nicely, but it seems to work on all recent
versions of OS X.  The blank-pad method is less desirable since it results
in lots of extra space in ps' output.  Per Alexey Klyukin.

13 years agoInstall a data-type-based solution for protecting pg_get_expr().
Tom Lane [Fri, 3 Sep 2010 01:34:55 +0000 (01:34 +0000)]
Install a data-type-based solution for protecting pg_get_expr().

Since the code underlying pg_get_expr() is not secure against malformed
input, and can't practically be made so, we need to prevent miscreants
from feeding arbitrary data to it.  We can do this securely by declaring
pg_get_expr() to take a new datatype "pg_node_tree" and declaring the
system catalog columns that hold nodeToString output to be of that type.
There is no way at SQL level to create a non-null value of type pg_node_tree.
Since the backend-internal operations that fill those catalog columns
operate below the SQL level, they are oblivious to the datatype relabeling
and don't need any changes.

13 years agoIn HEAD only, revert kluge solution for preventing misuse of pg_get_expr().
Tom Lane [Fri, 3 Sep 2010 01:26:52 +0000 (01:26 +0000)]
In HEAD only, revert kluge solution for preventing misuse of pg_get_expr().

A data-type-based solution, which is much cleaner and more bulletproof,
will follow shortly.  It seemed best to make this a separate commit though.

13 years ago9.1alpha1 release notes.
Tom Lane [Thu, 2 Sep 2010 17:30:06 +0000 (17:30 +0000)]
9.1alpha1 release notes.

13 years agoClean up description of ecpg's dtcvfmtasc function.
Tom Lane [Thu, 2 Sep 2010 14:57:04 +0000 (14:57 +0000)]
Clean up description of ecpg's dtcvfmtasc function.
Per KOIZUMI Satoru.

13 years agoClean up some bad grammar and punctuation in description of ecpg's decimal
Tom Lane [Thu, 2 Sep 2010 14:46:44 +0000 (14:46 +0000)]
Clean up some bad grammar and punctuation in description of ecpg's decimal
type.  Per KOIZUMI Satoru.

13 years agoFix up flushing of composite-type typcache entries to be driven directly by
Tom Lane [Thu, 2 Sep 2010 03:16:46 +0000 (03:16 +0000)]
Fix up flushing of composite-type typcache entries to be driven directly by
SI invalidation events, rather than indirectly through the relcache.

In the previous coding, we had to flush a composite-type typcache entry
whenever we discarded the corresponding relcache entry.  This caused problems
at least when testing with RELCACHE_FORCE_RELEASE, as shown in recent report
from Jeff Davis, and might result in real-world problems given the kind of
unexpected relcache flush that that test mechanism is intended to model.

The new coding decouples relcache and typcache management, which is a good
thing anyway from a structural perspective.  The cost is that we have to
search the typcache linearly to find entries that need to be flushed.  There
are a couple of ways we could avoid that, but at the moment it's not clear
it's worth any extra trouble, because the typcache contains very few entries
in typical operation.

Back-patch to 8.2, the same as some other recent fixes in this general area.
The patch could be carried back to 8.0 with some additional work, but given
that it's only hypothetical whether we're fixing any problem observable in
the field, it doesn't seem worth the work now.

13 years agoFix typo. Pointed out by Kevin Grittner.
Robert Haas [Thu, 2 Sep 2010 02:52:14 +0000 (02:52 +0000)]
Fix typo.  Pointed out by Kevin Grittner.

13 years agoClarify documentation of handling of null arguments for aggregates.
Tom Lane [Wed, 1 Sep 2010 18:22:29 +0000 (18:22 +0000)]
Clarify documentation of handling of null arguments for aggregates.
Per discussion.

13 years agoImprove release notes' description of Teodor's fixes for polygon overlaps
Tom Lane [Wed, 1 Sep 2010 15:14:42 +0000 (15:14 +0000)]
Improve release notes' description of Teodor's fixes for polygon overlaps
and contains operators.

13 years agoAdd missing markup for translatability
Alvaro Herrera [Tue, 31 Aug 2010 05:57:54 +0000 (05:57 +0000)]
Add missing markup for translatability

13 years agoCosmetic fixes for KnownAssignedXidsGetOldestXmin, per Fujii Masao.
Tom Lane [Mon, 30 Aug 2010 17:30:44 +0000 (17:30 +0000)]
Cosmetic fixes for KnownAssignedXidsGetOldestXmin, per Fujii Masao.

13 years agoFix oversight in RelFileNodeBackend patch: CreateFakeRelcacheEntry needs to
Tom Lane [Mon, 30 Aug 2010 16:46:23 +0000 (16:46 +0000)]
Fix oversight in RelFileNodeBackend patch: CreateFakeRelcacheEntry needs to
initialize the rd_backend field of a fake Relation entry correctly.
Fortunately, that is easy, since only non-temp relations should ever be
mentioned in the WAL stream.

13 years agoFix misleading DEBUG2 issued during RemoveOldXlogFiles()
Simon Riggs [Mon, 30 Aug 2010 15:37:41 +0000 (15:37 +0000)]
Fix misleading DEBUG2 issued during RemoveOldXlogFiles()

13 years agoTruncate subtrans after each restartpoint.
Simon Riggs [Mon, 30 Aug 2010 14:22:05 +0000 (14:22 +0000)]
Truncate subtrans after each restartpoint.
Issue reported by Harald Kolb, patch by Fujii Masao, review by me.

13 years agoTeach GetOldestXmin() about KnownAssignedXids during recovery.
Simon Riggs [Mon, 30 Aug 2010 14:16:48 +0000 (14:16 +0000)]
Teach GetOldestXmin() about KnownAssignedXids during recovery.
Very minor issue, though this is required for a later patch.
Reported by Heikki Linnakangas.

13 years agoFix typo in comment.
Heikki Linnakangas [Mon, 30 Aug 2010 06:33:22 +0000 (06:33 +0000)]
Fix typo in comment.

13 years agoReduce PANIC to ERROR in some occasionally-reported btree failure cases.
Tom Lane [Sun, 29 Aug 2010 19:33:14 +0000 (19:33 +0000)]
Reduce PANIC to ERROR in some occasionally-reported btree failure cases.

This patch changes _bt_split() and _bt_pagedel() to throw a plain ERROR,
rather than PANIC, for several cases that are reported from the field
from time to time:
* right sibling's left-link doesn't match;
* PageAddItem failure during _bt_split();
* parent page's next child isn't right sibling during _bt_pagedel().
In addition the error messages for these cases have been made a bit
more verbose, with additional values included.

The original motivation for PANIC here was to capture core dumps for
subsequent analysis.  But with so many users whose platforms don't capture
core dumps by default, or who are unprepared to analyze them anyway, it's hard
to justify a forced database restart when we can fairly easily detect the
problems before we've reached the critical sections where PANIC would be
necessary.  It is not currently known whether the reports of these messages
indicate well-hidden bugs in Postgres, or are a result of storage-level
malfeasance; the latter possibility suggests that we ought to try to be more
robust even if there is a bug here that's ultimately found.

Backpatch to 8.2.  The code before that is sufficiently different that
it doesn't seem worth the trouble to back-port further.

13 years agoRemove obsolete remark that PQprepare() is more flexible than PREPARE.
Tom Lane [Sun, 29 Aug 2010 15:19:05 +0000 (15:19 +0000)]
Remove obsolete remark that PQprepare() is more flexible than PREPARE.

Spotted by Dmitriy Igrishin.  Back-patch to 8.2, which is when the PREPARE
statement was improved to allow parameter types to be omitted.

13 years agoInsert additional compiler placation into objectaddress.c.
Robert Haas [Fri, 27 Aug 2010 21:31:19 +0000 (21:31 +0000)]
Insert additional compiler placation into objectaddress.c.

Peter Eisentraut reports that some bits of the "address" variable
in get_object_address() give "may be used uninitialized" warnings;
this likes the only excuse his compiler could have for thinking
that's possible.