Commit Graph

1607 Commits

Author SHA1 Message Date
38d8dce61f Remove some code for old unsupported versions of MSVC
As of d9dd406fe281d22d5238d3c26a7182543c711e74, we require MSVC 2013,
which means _MSC_VER >= 1800.  This means that conditionals about
older versions of _MSC_VER can be removed or simplified.

Previous code was also in some cases handling MinGW, where _MSC_VER is
not defined at all, incorrectly, such as in pg_ctl.c and win32_port.h,
leading to some compiler warnings.  This should now be handled better.

Reviewed-by: Michael Paquier <michael@paquier.xyz>
2019-10-08 10:50:54 +02:00
cc4ec2d29a Fix incorrect use of term HEAD for Git
HEAD as used here was CVS terminology.  Now we mean master.
2019-10-07 09:44:17 +02:00
ad7595b890 Handle spaces in OpenSSL install location for MSVC
First, make sure that the .exe name is quoted when trying to get the
version number. Also, don't quote the lib name for using in the project
files if it's already been quoted. This second change applies to all
libraries, not just OpenSSL.

This has clearly been broken forever, so backpatch to all live branches.
2019-10-04 15:34:40 -04:00
caba97a9d9 Split out recovery confing-writing code from pg_basebackup
... into a new file, fe_utils/recovery_gen.c.

This can later be used by pg_rewind.

Authors: Paul Guo, Jimmy Yih, Ashwin Agrawal.  A few tweaks by Álvaro Herrera
Reviewed-by: Michaël Paquier
Discussion: https://postgr.es/m/CAEET0ZEffUkXc48pg2iqARQgGRYDiiVxDu+yYek_bTwJF+q=Uw@mail.gmail.com
2019-09-25 14:35:24 -03:00
640c19869f Add dummy_index_am to src/test/modules/
This includes more tests dedicated to relation options, bringing the
coverage of this code close to 100%, and the module can be used for
other purposes, like a base template for an index AM implementation.

Author: Nikolay Sharplov, Michael Paquier
Reviewed-by: Álvaro Herrera, Dent John
Discussion: https://postgr.es/m/17071942.m9zZutALE6@x200m
2019-09-25 12:11:12 +09:00
6cae9d2c10 Improve handling of NULLs in KNN-GiST and KNN-SP-GiST
This commit improves subject in two ways:

 * It removes ugliness of 02f90879e7, which stores distance values and null
   flags in two separate arrays after GISTSearchItem struct.  Instead we pack
   both distance value and null flag in IndexOrderByDistance struct.  Alignment
   overhead should be negligible, because we typically deal with at most few
   "col op const" expressions in ORDER BY clause.
 * It fixes handling of "col op NULL" expression in KNN-SP-GiST.  Now, these
   expression are not passed to support functions, which can't deal with them.
   Instead, NULL result is implicitly assumed.  It future we may decide to
   teach support functions to deal with NULL arguments, but current solution is
   bugfix suitable for backpatch.

Reported-by: Nikita Glukhov
Discussion: https://postgr.es/m/826f57ee-afc7-8977-c44c-6111d18b02ec%40postgrespro.ru
Author: Nikita Glukhov
Reviewed-by: Alexander Korotkov
Backpatch-through: 9.4
2019-09-19 21:48:39 +03:00
9d6e1ec5ce Expand properly list of TAP tests used for prove in vcregress.pl
Depending on the system used, t/*.pl may not be expanded into a list of
tests which can be consumed by prove when attempting to run TAP tests on
a given path.  Fix that by using glob() directly in the script, to make
sure that a complete list of tests is provided.  This has not proved to
be an issue with MSVC as the list was properly expanded, but it is on
Linux with perl's system().

This is extracted from a larger patch.

Author: Tom Lane
Discussion: https://postgr.es/m/6628.1567958876@sss.pgh.pa.us
Backpatch-through: 9.4
2019-09-11 11:07:18 +09:00
db43831899 Avoid using INFO elevel for what are fundamentally debug messages.
Commit 6f6b99d13 stuck an INFO message into the fast path for
checking partition constraints, for no very good reason except
that it made it easy for the regression tests to verify that
that path was taken.  Assorted later patches did likewise,
increasing the unsuppressable-chatter level from ALTER TABLE
even more.  This isn't good for the user experience, so let's
drop these messages down to DEBUG1 where they belong.  So as
not to have a loss of test coverage, create a TAP test that
runs the relevant queries with client_min_messages = DEBUG1
and greps for the expected messages.

This testing method is a bit brute-force --- in particular,
it duplicates the execution of a fair amount of the core
create_table and alter_table tests.  We experimented with
other solutions, but running any significant amount of
standard testing with client_min_messages = DEBUG1 seems
to have a lot of output-stability pitfalls, cf commits
bbb96c370 and 5655565c0.  Possibly at some point we'll look
into whether we can reduce the amount of test duplication.

Backpatch into v12, because some of these messages are new
in v12 and we don't really want to ship it that way.

Sergei Kornilov

Discussion: https://postgr.es/m/81911511895540@web58j.yandex.ru
Discussion: https://postgr.es/m/4859321552643736@myt5-02b80404fd9e.qloud-c.yandex.net
2019-09-07 19:03:11 -04:00
bd124996ef Create an API for inserting and deleting rows in TOAST tables.
This moves much of the non-heap-specific logic from toast_delete and
toast_insert_or_update into a helper functions accessible via a new
header, toast_helper.h.  Using the functions in this module, a table
AM can implement creation and deletion of TOAST table rows with
much less code duplication than was possible heretofore.  Some
table AMs won't want to use the TOAST logic at all, but for those
that do this will make that easier.

Patch by me, reviewed and tested by Prabhat Sabu, Thomas Munro,
Andres Freund, and Álvaro Herrera.

Discussion: http://postgr.es/m/CA+TgmoZv-=2iWM4jcw5ZhJeL18HF96+W1yJeYrnGMYdkFFnEpQ@mail.gmail.com
2019-09-06 10:38:51 -04:00
74a308cf52 Use explicit_bzero
Use the explicit_bzero() function in places where it is important that
security information such as passwords is cleared from memory.  There
might be other places where it could be useful; this is just an
initial collection.

For platforms that don't have explicit_bzero(), provide various
fallback implementations.  (explicit_bzero() itself isn't standard,
but as Linux/glibc, FreeBSD, and OpenBSD have it, it's the most common
spelling, so it makes sense to make that the invocation point.)

Discussion: https://www.postgresql.org/message-id/flat/42d26bde-5d5b-c90d-87ae-6cab875f73be%402ndquadrant.com
2019-09-05 08:30:42 +02:00
c45643d618 Remove configure detection of crypt()
crypt() hasn't been needed since crypt detection was removed from
PostgreSQL, so these configure checks are not necessary.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/21f88934-f00c-27f6-a9d8-7ea06d317781%402ndquadrant.com
2019-08-21 21:36:54 +02:00
55ea109188 Add "headerscheck" script to test header-file compilability under C.
We already had "cpluspluscheck", which served the dual purposes of
verifying that headers compile standalone and that they compile as C++.
However, C++ compilers don't have the exact same set of error conditions
as C compilers, so this doesn't really prove that a header will compile
standalone as C.

Hence, add a second script that's largely similar but runs the C
compiler not C++.

Also add a bit more documentation than the none-at-all we had before.

Discussion: https://postgr.es/m/14803.1566175851@sss.pgh.pa.us
2019-08-19 14:22:56 -04:00
a120791096 Use zic's new "-b slim" option to generate smaller timezone files.
IANA tzcode release 2019b adds an option that tells zic not to emit
the old 32-bit section of the timezone files, and to skip some other
space-wasting hacks needed for compatibility with old timezone client
libraries.  Since we only expect our own code to use the timezone data
we install, and our code is up-to-date with 2019b, there's no apparent
reason not to generate the smallest possible files.

Unfortunately, while the individual zone files do get significantly
smaller in many cases, they were not that big to begin with; which
means that no real space savings ensues on filesystems that don't
optimize small files.  (For instance, on ext4 with 4K block size,
"du" says the installed timezone tree is the same size as before.)
Still, it seems worth making the change, if only because this is
presumably the wave of the future.  At the very least, we'll save
some cycles while reading a zone file.

But given the marginal value and the fact that this is a new code
path, it doesn't seem worth the risk of back-patching this change
into stable branches.  Hence, unlike most of our timezone-related
changes, apply to HEAD only.

Discussion: https://postgr.es/m/24998.1563403327@sss.pgh.pa.us
2019-08-19 13:17:02 -04:00
c96581abe4 Fix inconsistencies and typos in the tree, take 11
This fixes various typos in docs and comments, and removes some orphaned
definitions.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/5da8e325-c665-da95-21e0-c8a99ea61fbf@gmail.com
2019-08-19 16:21:39 +09:00
66bde49d96 Fix inconsistencies and typos in the tree, take 10
This addresses some issues with unnecessary code comments, fixes various
typos in docs and comments, and removes some orphaned structures and
definitions.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/9aabc775-5494-b372-8bcb-4dfc0bd37c68@gmail.com
2019-08-13 13:53:41 +09:00
8548ddc61b Fix inconsistencies and typos in the tree, take 9
This addresses more issues with code comments, variable names and
unreferenced variables.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/7ab243e0-116d-3e44-d120-76b3df7abefd@gmail.com
2019-08-05 12:14:58 +09:00
eb43f3d193 Fix inconsistencies and typos in the tree
This is numbered take 8, and addresses again a set of issues with code
comments, variable names and unreferenced variables.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/b137b5eb-9c95-9c2f-586e-38aba7d59788@gmail.com
2019-07-29 12:28:30 +09:00
959f6d6a18 pg_upgrade: Default new bindir to pg_upgrade location
Make the directory where the pg_upgrade binary resides the default for
new bindir, as running the pg_upgrade binary from where the new
cluster is installed is a very common scenario.  Setting this as the
defauly bindir for the new cluster will remove the need to provide it
explicitly via -B in many cases.

To support directories being missing from option parsing, extend the
directory check with a missingOk mode where the path must be filled at
a later point before being used.  Also move the exec_path check to
earlier in setup to make sure we know the new cluster bindir when we
scan for required executables.

This removes the exec_path from the OSInfo struct as it is not used
anywhere.

Author: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/9328.1552952117@sss.pgh.pa.us
2019-07-27 08:19:04 +02:00
cb9bb15783 Fix syntax error in commit 20e99cddd.
Per buildfarm.
2019-07-25 14:42:02 -04:00
20e99cdddb Honor MSVC WindowsSDKVersion if set
Add a line to the project file setting the target SDK. Otherwise, in for
example VS2017, if the default but optional 8.1 SDK is not installed the
build will fail.

Patch from Peifeng Qiu, slightly edited by me.

Discussion: https://postgr.es/m/CABmtVJhw1boP_bd4=b3Qv5YnqEdL696NtHFi2ruiyQ6mFHkeQQ@mail.gmail.com

Backpatch to all live branches.
2019-07-25 11:38:43 -04:00
39aadc9842 Fix some inconsistencies in MSVC scripts
In configure scripts, --with-ossp-uuid is obsolete is replaced by
--with-uuid, and it needs to specify a path to its library builds when
building with the MSVC scripts.  --with-perl needs also to specify a
path.

Author: Kyotaro Horiguchi
Discussion: https://postgr.es/m/20190712.121529.194600624.horikyota.ntt@gmail.com
2019-07-13 16:51:31 +09:00
6b8548964b Fix inconsistencies in the code
This addresses a couple of issues in the code:
- Typos and inconsistencies in comments and function declarations.
- Removal of unreferenced function declarations.
- Removal of unnecessary compile flags.
- A cleanup error in regressplans.sh.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/0c991fdf-2670-1997-c027-772a420c4604@gmail.com
2019-07-08 13:15:09 +09:00
2b1394fc2b Add support for Visual Studio 2019 in build scripts
This fixes at the same time a set of inconsistencies in the
documentation and the scripts related to the versions of Windows SDK
supported.

Author: Haribabu Kommi
Reviewed-by: Andrew Dunstan, Juan José Santamaría Flecha, Michael
Paquier
Discussion: https://postgr.es/m/CAJrrPGcfqXhfPyMrny9apoDU7M1t59dzVAvoJ9AeAh5BJi+UzA@mail.gmail.com
2019-07-02 14:02:33 +09:00
9adda24543 Refactor code of reindexdb for query generation
This merges the portion related to REINDEX SYSTEM into the routine
already available for all the other reindex types, making the query
generation cleaner.  While on it, change the handling of the reindex
types using an enum, which allows to get rid of the hardcoded strings
used directly in the query generation present for the same purpose (aka
"TABLE", "DATABASE", etc.).

Per discussion with Julien Rouhaud, Tom Lane, Alvaro Herrera and me.

Author: Julien Rouhaud
Discussion: https://postgr.es/m/CAOBaU_bSmSik_WRK9niDnm-3NkNZky6+uKxkmQwvthZvMWpS5A@mail.gmail.com
2019-07-02 11:36:53 +09:00
615cebc94b Stamp HEAD as 13devel.
Let the hacking begin ...
2019-07-01 12:50:55 -04:00
9e1c9f9594 pgindent run prior to branching v12.
pgperltidy and reformat-dat-files too, though the latter didn't
find anything to change.
2019-07-01 12:37:52 -04:00
c000a47ad1 Exclude new src/test/modules/unsafe_tests directory from MSVC build.
There's nothing to build here, and that was confusing AddContrib().
Per buildfarm.
2019-06-30 14:05:24 -04:00
d993e0fb82 Add support for OpenSSL 1.1.0 and newer versions in MSVC scripts
Up to now, the MSVC build scripts are able to support only one fixed
version of OpenSSL, and they lacked logic to detect the version of
OpenSSL a given compilation of Postgres is linking to (currently 1.0.2,
the latest LTS of upstream which will be EOL'd at the end of 2019).

This commit adds more logic to detect the version of OpenSSL used by a
build and makes use of it to add support for compilation with OpenSSL
1.1.0 which requires a new set of compilation flags to work properly.

The supported OpenSSL installers have changed their library layer with
various library renames with the upgrade to 1.1.0, making the logic a
bit more complicated.  The scripts are now able to adapt to the new
world order.

Reported-by: Sergey Pashkov
Author: Juan José Santamaría Flecha, Michael Paquier
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/15789-8fc75dea3c5a17c8@postgresql.org
2019-06-26 10:44:46 +09:00
414cca40d5 Remove last references to WAL segment size in MSVC scripts
fc49e24 has removed the last use of this compile-time variable as WAL
segment size is something that can now be set at initdb time, still this
commit has forgotten some references to it.

Discussion: https://postgr.es/m/20190617073228.GE18917@paquier.xyz
2019-06-19 11:18:50 +09:00
3412030205 Fix more typos and inconsistencies in the tree
Author: Alexander Lakhin
Discussion: https://postgr.es/m/0a5419ea-1452-a4e6-72ff-545b1a5a8076@gmail.com
2019-06-17 16:13:16 +09:00
6cbfb784c3 Rework the pg_statistic_ext catalog
Since extended statistic got introduced in PostgreSQL 10, there was a
single catalog pg_statistic_ext storing both the definitions and built
statistic.  That's however problematic when a user is supposed to have
access only to the definitions, but not to user data.

Consider for example pg_dump on a database with RLS enabled - if the
pg_statistic_ext catalog respects RLS (which it should, if it contains
user data), pg_dump would not see any records and the result would not
define any extended statistics.  That would be a surprising behavior.

Until now this was not a pressing issue, because the existing types of
extended statistic (functional dependencies and ndistinct coefficients)
do not include any user data directly.  This changed with introduction
of MCV lists, which do include most common combinations of values.

The easiest way to fix this is to split the pg_statistic_ext catalog
into two - one for definitions, one for the built statistic values.
The new catalog is called pg_statistic_ext_data, and we're maintaining
a 1:1 relationship with the old catalog - either there are matching
records in both catalogs, or neither of them.

Bumped CATVERSION due to changing system catalog definitions.

Author: Dean Rasheed, with improvements by me
Reviewed-by: Dean Rasheed, John Naylor
Discussion: https://postgr.es/m/CAEZATCUhT9rt7Ui%3DVdx4N%3D%3DVV5XOK5dsXfnGgVOz_JhAicB%3DZA%40mail.gmail.com
2019-06-16 01:20:31 +02:00
ae78a9456c MSVC: Reconcile clean.bat with PostgreSQL 12 work. 2019-06-09 15:50:54 -07:00
f4755a2c01 Make cpluspluscheck more portable.
Teach it to scrape -I and -D switches from CPPFLAGS in Makefile.global.
This is useful for testing on, eg, FreeBSD, where you won't get far
without "-I/usr/local/include".

Also, expand the set of blacklisted-for-unportability atomics headers,
based on noting that arch-x86.h fails to compile on an ARM box.  The
other ones I'd omitted seem to compile all right on architectures they
don't belong to, but that's surely too shaky to rely on.  Let's do
like we did for the src/include/port/ headers, and ignore all except
the variant that's pulled in by the arch-independent header.
2019-06-02 13:45:01 -04:00
10a53cae99 Un-break ecpg tests for Windows.
Declaring a function "inline" still doesn't work with Windows compilers
(C99? what's that?), unless the macro provided by pg_config.h is
in-scope, which it is not in our ECPG test programs.  So the workaround
I tried to use in commit 7640f9312 doesn't work for Windows.  Revert
the change in printf_hack.h, and instead just blacklist that file
in cpluspluscheck --- since it's a not-installed test file, we don't
really need to verify its C++ cleanliness anyway.
2019-06-02 11:07:54 -04:00
6f54b80edd Improve coverage of cpluspluscheck.
Formerly, cpluspluscheck was only meant to examine headers that
we thought of as exported --- but its notion of what we export
was well behind the times.  Let's just make it check *all* .h
files, except for a well-defined blacklist, instead.

While at it, improve its ability to use a C++ compiler other than g++,
by scraping the CXX setting from Makefile.global and making it possible
to override the warning options used (per suggestion from Andres Freund).

Discussion: https://postgr.es/m/b517ec3918d645eb950505eac8dd434e@gaz-is.ru
2019-05-31 16:32:07 -04:00
b1cd7ce23f Integrate cpluspluscheck into build system.
Previously cpluspluscheck wouldn't work in vpath builds, this commit
fixes that. To make it easier to invoke, there's a top-level
cpluspluscheck target.

Discussion: https://postgr.es/20190530220244.kiputcbl4gkl2oo6@alap3.anarazel.de
2019-05-31 12:36:17 -07:00
9e58705a7f Make our perfect hash functions be valid C++.
While C is happy to cast "const void *" to "const unsigned char *"
silently, C++ insists on an explicit cast.  Since we put these
functions into header files, cpluspluscheck whines about that.
Add the cast to pacify it.

Discussion: https://postgr.es/m/b517ec3918d645eb950505eac8dd434e@gaz-is.ru
2019-05-31 10:40:00 -04:00
40b132c1af In the pg_upgrade test suite, don't write to src/test/regress.
When this suite runs installcheck, redirect file creations from
src/test/regress to src/bin/pg_upgrade/tmp_check/regress.  This closes a
race condition in "make -j check-world".  If the pg_upgrade suite wrote
to a given src/test/regress/results file in parallel with the regular
src/test/regress invocation writing it, a test failed spuriously.  Even
without parallelism, in "make -k check-world", the suite finishing
second overwrote the other's regression.diffs.  This revealed test
"largeobject" assuming @abs_builddir@ is getcwd(), so fix that, too.

Buildfarm client REL_10, released fifty-four days ago, supports saving
regression.diffs from its new location.  When an older client reports a
pg_upgradeCheck failure, it will no longer include regression.diffs.
Back-patch to 9.5, where pg_upgrade moved to src/bin.

Reviewed (in earlier versions) by Andrew Dunstan.

Discussion: https://postgr.es/m/20181224034411.GA3224776@rfd.leadboat.com
2019-05-28 12:59:00 -07:00
10b72deafe In the pg_upgrade test suite, remove and recreate "tmp_check".
This allows "vcregress upgradecheck" to pass twice in immediate
succession, and it's more like how $(prove_check) works.  Back-patch to
9.5, where pg_upgrade moved to src/bin.

Discussion: https://postgr.es/m/20190520012436.GA1480421@rfd.leadboat.com
2019-05-28 12:58:30 -07:00
db6e2b4c52 Initial pgperltidy run for v12.
Make all the perl code look nice, too (for some value of "nice").
2019-05-22 13:36:19 -04:00
8255c7a5ee Phase 2 pgindent run for v12.
Switch to 2.1 version of pg_bsd_indent.  This formats
multiline function declarations "correctly", that is with
additional lines of parameter declarations indented to match
where the first line's left parenthesis is.

Discussion: https://postgr.es/m/CAEepm=0P3FeTXRcU5B2W3jv3PgRVZ-kGUXLGfd42FFhUROO3ug@mail.gmail.com
2019-05-22 13:04:48 -04:00
be76af171c Initial pgindent run for v12.
This is still using the 2.0 version of pg_bsd_indent.
I thought it would be good to commit this separately,
so as to document the differences between 2.0 and 2.1 behavior.

Discussion: https://postgr.es/m/16296.1558103386@sss.pgh.pa.us
2019-05-22 12:55:34 -04:00
8bbb8166b6 Remove bug.template file
It's outdated and not really in use anymore.

Discussion: https://www.postgresql.org/message-id/flat/cf7ed2b1-1ebe-83cf-e05e-d5943f67af2d%402ndquadrant.com
2019-05-20 08:58:21 +02:00
ae35e1c9d7 Revert "In the pg_upgrade test suite, don't write to src/test/regress."
This reverts commit bd1592e8570282b1650af6b8eede0016496daecd.  It had
multiple defects.

Discussion: https://postgr.es/m/12717.1558304356@sss.pgh.pa.us
2019-05-19 15:24:42 -07:00
bd1592e857 In the pg_upgrade test suite, don't write to src/test/regress.
When this suite runs installcheck, redirect file creations from
src/test/regress to src/bin/pg_upgrade/tmp_check/regress.  This closes a
race condition in "make -j check-world".  If the pg_upgrade suite wrote
to a given src/test/regress/results file in parallel with the regular
src/test/regress invocation writing it, a test failed spuriously.  Even
without parallelism, in "make -k check-world", the suite finishing
second overwrote the other's regression.diffs.  This revealed test
"largeobject" assuming @abs_builddir@ is getcwd(), so fix that, too.

Buildfarm client REL_10, released forty-five days ago, supports saving
regression.diffs from its new location.  When an older client reports a
pg_upgradeCheck failure, it will no longer include regression.diffs.
Back-patch to 9.5, where pg_upgrade moved to src/bin.

Reviewed by Andrew Dunstan.

Discussion: https://postgr.es/m/20181224034411.GA3224776@rfd.leadboat.com
2019-05-19 14:36:44 -07:00
fc9a62af3f Move logging.h and logging.c from src/fe_utils/ to src/common/.
The original placement of this module in src/fe_utils/ is ill-considered,
because several src/common/ modules have dependencies on it, meaning that
libpgcommon and libpgfeutils now have mutual dependencies.  That makes it
pointless to have distinct libraries at all.  The intended design is that
libpgcommon is lower-level than libpgfeutils, so only dependencies from
the latter to the former are acceptable.

We already have the precedent that fe_memutils and a couple of other
modules in src/common/ are frontend-only, so it's not stretching anything
out of whack to treat logging.c as a frontend-only module in src/common/.
To the extent that such modules help provide a common frontend/backend
environment for the rest of common/ to use, it's a reasonable design.
(logging.c does not yet provide an ereport() emulation, but one can
dream.)

Hence, move these files over, and revert basically all of the build-system
changes made by commit cc8d41511.  There are no places that need to grow
new dependencies on libpgcommon, further reinforcing the idea that this
is the right solution.

Discussion: https://postgr.es/m/a912ffff-f6e4-778a-c86a-cf5c47a12933@2ndquadrant.com
2019-05-14 14:20:10 -04:00
34ff542a71 MSVC: Build ~35% faster by calling dumpbin just once per directory.
Peifeng Qiu

Discussion: https://postgr.es/m/CABmtVJiKXQjast0dQD-8KAtfm8XmyYxo-4Dc7+M+fBr8JRTqkw@mail.gmail.com
2019-05-03 21:56:47 -07:00
c098509927 Consistently test for in-use shared memory.
postmaster startup scrutinizes any shared memory segment recorded in
postmaster.pid, exiting if that segment matches the current data
directory and has an attached process.  When the postmaster.pid file was
missing, a starting postmaster used weaker checks.  Change to use the
same checks in both scenarios.  This increases the chance of a startup
failure, in lieu of data corruption, if the DBA does "kill -9 `head -n1
postmaster.pid` && rm postmaster.pid && pg_ctl -w start".  A postmaster
will no longer stop if shmat() of an old segment fails with EACCES.  A
postmaster will no longer recycle segments pertaining to other data
directories.  That's good for production, but it's bad for integration
tests that crash a postmaster and immediately delete its data directory.
Such a test now leaks a segment indefinitely.  No "make check-world"
test does that.  win32_shmem.c already avoided all these problems.  In
9.6 and later, enhance PostgresNode to facilitate testing.  Back-patch
to 9.4 (all supported versions).

Reviewed (in earlier versions) by Daniel Gustafsson and Kyotaro HORIGUCHI.

Discussion: https://postgr.es/m/20190408064141.GA2016666@rfd.leadboat.com
2019-04-12 22:36:38 -07:00
82150a05be Revert "Consistently test for in-use shared memory."
This reverts commits 2f932f71d9f2963bbd201129d7b971c8f5f077fd,
16ee6eaf80a40007a138b60bb5661660058d0422 and
6f0e190056fe441f7cf788ff19b62b13c94f68f3.  The buildfarm has revealed
several bugs.  Back-patch like the original commits.

Discussion: https://postgr.es/m/20190404145319.GA1720877@rfd.leadboat.com
2019-04-05 00:00:52 -07:00
86b85044e8 tableam: Add table_multi_insert() and revamp/speed-up COPY FROM buffering.
This adds table_multi_insert(), and converts COPY FROM, the only user
of heap_multi_insert, to it.

A simple conversion of COPY FROM use slots would have yielded a
slowdown when inserting into a partitioned table for some
workloads. Different partitions might need different slots (both slot
types and their descriptors), and dropping / creating slots when
there's constant partition changes is measurable.

Thus instead revamp the COPY FROM buffering for partitioned tables to
allow to buffer inserts into multiple tables, flushing only when
limits are reached across all partition buffers. By only dropping
slots when there've been inserts into too many different partitions,
the aforementioned overhead is gone. By allowing larger batches, even
when there are frequent partition changes, we actuall speed such cases
up significantly.

By using slots COPY of very narrow rows into unlogged / temporary
might slow down very slightly (due to the indirect function calls).

Author: David Rowley, Andres Freund, Haribabu Kommi
Discussion:
    https://postgr.es/m/20180703070645.wchpu5muyto5n647@alap3.anarazel.de
    https://postgr.es/m/20190327054923.t3epfuewxfqdt22e@alap3.anarazel.de
2019-04-04 16:28:18 -07:00