Previously, membership of role A in role B could be recorded in the
catalog tables only once. This meant that a new grant of role A to
role B would overwrite the previous grant. For other object types, a
new grant of permission on an object - in this case role A - exists
along side the existing grant provided that the grantor is different.
Either grant can be revoked independently of the other, and
permissions remain so long as at least one grant remains. Make role
grants work similarly.
Previously, when granting membership in a role, the superuser could
specify any role whatsoever as the grantor, but for other object types,
the grantor of record must be either the owner of the object, or a
role that currently has privileges to perform a similar GRANT.
Implement the same scheme for role grants, treating the bootstrap
superuser as the role owner since roles do not have owners. This means
that attempting to revoke a grant, or admin option on a grant, can now
fail if there are dependent privileges, and that CASCADE can be used
to revoke these. It also means that you can't grant ADMIN OPTION on
a role back to a user who granted it directly or indirectly to you,
similar to how you can't give WITH GRANT OPTION on a privilege back
to a role which granted it directly or indirectly to you.
Previously, only the superuser could specify GRANTED BY with a user
other than the current user. Relax that rule to allow the grantor
to be any role whose privileges the current user posseses. This
doesn't improve compatibility with what we do for other object types,
where support for GRANTED BY is entirely vestigial, but it makes this
feature more usable and seems to make sense to change at the same time
we're changing related behaviors.
Along the way, fix "ALTER GROUP group_name ADD USER user_name" to
require the same privileges as "GRANT group_name TO user_name".
Previously, CREATEROLE privileges were sufficient for either, but
only the former form was permissible with ADMIN OPTION on the role.
Now, either CREATEROLE or ADMIN OPTION on the role suffices for
either spelling.
Patch by me, reviewed by Stephen Frost.
Discussion: http://postgr.es/m/CA+TgmoaFr-RZeQ+WoQ5nKPv97oT9+aDgK_a5+qWHSgbDsMp1Vg@mail.gmail.com
Compiling with -Wshadow=compatible-local yields quite a few warnings about
local variables being shadowed by compatible local variables in an inner
scope. Of course, this is perfectly valid in C, but we have had bugs in
the past as a result of developers failing to notice this. af7d270dd is a
recent example.
Here we do a cleanup of warnings we receive from -Wshadow=compatible-local
for code which is new to PostgreSQL 15. We've yet to have the discussion
about if we actually ever want to run that as a standard compilation flag.
We'll need to at least get the number of warnings down to something easier
to manage before we can realistically consider if we want this or not.
This commit is the first step towards reducing the warnings.
The changes being made here are all fairly trivial. Because of that, and
the fact that v15 is still in beta, this is being back-patched into 15.
It seems more risky not to do this as the risk of future bugs is increased
by the additional conflicts that this commit could cause for any future
bug fixes touching the same areas as this commit.
Author: Justin Pryzby
Discussion: https://postgr.es/m/20220817145434.GC26426%40telsasoft.com
Backpatch-through: 15
SUSv3, all targeted Unixes and modern Windows have getaddrinfo() and
related interfaces. Drop the replacement implementation, and adjust
some headers slightly to make sure that the APIs are visible everywhere
using standard POSIX headers and names.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CA%2BhUKG%2BL_3brvh%3D8e0BW_VfX9h7MtwgN%3DnFHP5o7X2oZucY9dg%40mail.gmail.com
Since HAVE_UNIX_SOCKETS is now defined unconditionally, remove the macro
and drop a small amount of dead code.
The last known systems not to have them (as far as I know at least) were
QNX, which we de-supported years ago, and Windows, which now has them.
If a new OS ever shows up with the POSIX sockets API but without working
AF_UNIX, it'll presumably still be able to compile the code, and fail at
runtime with an unsupported address family error. We might want to
consider adding a HINT that you should turn off the option to use it if
your network stack doesn't support it at that point, but it doesn't seem
worth making the relevant code conditional at compile time.
Also adjust a couple of places in the docs and comments that referred to
builds without Unix-domain sockets, since there aren't any. Windows
still gets a special mention in those places, though, because we don't
try to use them by default there yet.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://postgr.es/m/CA%2BhUKG%2BL_3brvh%3D8e0BW_VfX9h7MtwgN%3DnFHP5o7X2oZucY9dg%40mail.gmail.com
<sys/resource.h> is in SUSv2 and is on all targeted Unix systems. We
have a replacement for getrusage() on Windows, so let's just move its
declarations into src/include/port/win32/sys/resource.h so that we can
use a standard-looking #include. Also remove an obsolete reference to
CLK_TCK. Also rename src/port/getrusage.c to win32getrusage.c,
following the convention for Windows-only fallback code.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CA%2BhUKG%2BL_3brvh%3D8e0BW_VfX9h7MtwgN%3DnFHP5o7X2oZucY9dg%40mail.gmail.com
96ef3b8ff1 accidentally copied a not
applicable comment from the float8_pass_by_value code to the
data_checksums code. Remove that.
87d3b35a1c changed pg_upgrade to
checking the checksum version rather than just the Boolean presence of
checksums, but didn't change the field type in its ControlData struct
from bool. So this would not work correctly if there ever is a
checksum version larger than 1.
Now that lstat() reports junction points with S_IFLNK/S_ISLINK(), and
unlink() can unlink them, there is no need for conditional code for
Windows in a few places. That was expressed by testing for WIN32 or
S_ISLNK, which we can now constant-fold.
The coding around pgwin32_is_junction() was a bit suspect anyway, as we
never checked for errors, and we also know that errors can be spuriously
reported because of transient sharing violations on this OS. The
lstat()-based code has handling for that.
This also reverts 4fc6b6ee on master only. That was done because
lstat() didn't previously work for symlinks (junction points), but now
it does.
Tested-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/CA%2BhUKGLfOOeyZpm5ByVcAt7x5Pn-%3DxGRNCvgiUPVVzjFLtnY0w%40mail.gmail.com
pread() and pwrite() are in SUSv2, and all targeted Unix systems have
them.
Previously, we defined pg_pread and pg_pwrite to emulate these function
with lseek() on old Unixen. The names with a pg_ prefix were a reminder
of a portability hazard: they might change the current file position.
That hazard is gone, so we can drop the prefixes.
Since the remaining replacement code is Windows-only, move it into
src/port/win32p{read,write}.c, and move the declarations into
src/include/port/win32_port.h.
No need for vestigial HAVE_PREAD, HAVE_PWRITE macros as they were only
used for declarations in port.h which have now moved into win32_port.h.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Greg Stark <stark@mit.edu>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
symlink() and readlink() are in SUSv2 and all targeted Unix systems have
them. We have partial emulation on Windows. Code that raised runtime
errors on systems without it has been dead for years, so we can remove
that and also references to such systems in the documentation.
Define HAVE_READLINK and HAVE_SYMLINK macros on Unix. Our Windows
replacement functions based on junction points can't be used for
relative paths or for non-directories, so the macros can be used to
check for full symlink support. The places that deal with tablespaces
can just use symlink functions without checking the macros. (If they
did check the macros, they'd need to provide an #else branch with a
runtime or compile time error, and it'd be dead code.)
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
getrlimit() is in SUSv2 and all targeted systems have it.
Windows doesn't have it. We could just use #ifndef WIN32, but for a
little more explanation about why we're making things conditional, let's
retain the HAVE_GETRLIMIT macro. It's defined in port.h for Unix systems.
On systems that have it, it's not necessary to test for RLIMIT_CORE,
RLIMIT_STACK or RLIMIT_NOFILE macros, since SUSv2 requires those and all
targeted systems have them. Also remove references to a pre-historic
alternative spelling of RLIMIT_NOFILE, and coding that seemed to believe
that Cygwin didn't have it.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
The test is proving to be unreliable in the buildfarm, and we neither
agree on how best to fix it nor have time to do so before the upcoming
release. So for now, put things back to the way they were before commit
d498e052b4.
Discussion: http://postgr.es/m/3628089.1659640252@sss.pgh.pa.us
errno was not reported correctly after attempting to clone a file,
leading to incorrect error reports. While scanning through the code, I
have not noticed any similar mistakes.
Error introduced in 3a769d8.
Author: Justin Pryzby
Discussion: https://postgr.es/m/20220731134135.GY15006@telsasoft.com
Backpatch-through: 12
These two new options can be used to either process all tables in
specific schemas or to skip processing all tables in specific
schemas. This change also refactors the handling of invalid
combinations of command-line options to a new helper function.
Author: Gilles Darold
Reviewed-by: Justin Pryzby, Nathan Bossart and Michael Paquier.
Discussion: https://postgr.es/m/929fbf3c-24b8-d454-811f-1d5898ab3e91%40migops.com
Instead of using command_ok() to run psql, use safe_psql(). wrasse
isn't happy, and it be because of failure to pass -X to the psql
invocation, which safe_psql() will do automatically.
Since safe_psql() returns standard output instead of writing it to
a file, this requires some changes to the incantation for running
'diff'.
Test against the 'regression' database rather than 'postgres' so
we test more than just one table. That also means we need to record
the horizons later, after the test does "VACUUM FULL pg_largeobject".
Add an ORDER BY clause to the horizon query for stability.
Patch by me, reviewed by Tom Lane.
Discussion: http://postgr.es/m/CA+TgmoaGBbpzgu3=du1f9zDUbkfycO0y=_uWrLFy=KKEqXWeLQ@mail.gmail.com
We must issue the TRUNCATE command first and update relfrozenxid
and relminmxid afterward; otherwise, TRUNCATE overwrites the
previously-set values.
Add a test case like I should have done the first time.
Per buildfarm report from TestUpgradeXversion.pm, by way of Tom
Lane.
The earlier commit used pg_class.relfilenode where it should have
used pg_class.oid. This could lead to emitting an UPDATE statement
into the dump that would update nothing (or the wrong thing) when
executed in the new cluster, resulting in relfrozenxid and
relminmxid being improperly carried forward for pg_largeobject.
Noticed by Dilip Kumar.
Discussion: http://postgr.es/m/CAFiTN-ty1Gzs6stk2vt9BJiq0m0hzf=aPnh3a-4Z3Tk5GzoENw@mail.gmail.com
Commit 9a974cbcba arranged to preserve
the relfilenode of user tables across pg_upgrade, but failed to notice
that pg_upgrade treats pg_largeobject as a user table and thus it needs
the same treatment. Otherwise, large objects will appear to vanish
after a pg_upgrade.
Commit d498e052b4 fixed this problem
by teaching pg_dump to UPDATE pg_class.relfilenode for pg_largeobject
and its index. However, because an UPDATE on the catalog rows doesn't
change anything on disk, this can leave stray files behind in the new
cluster. They will normally be empty, but it's a little bit untidy.
Hence, this commit arranges to do the same thing using DDL. Specifically,
it makes TRUNCATE work for the pg_largeobject catalog when in
binary-upgrade mode, and it then uses that command in binary-upgrade
dumps as a way of setting pg_class.relfilenode for pg_largeobject and
its index. That way, the old files are removed from the new cluster.
Discussion: http://postgr.es/m/CA+TgmoYYMXGUJO5GZk1-MByJGu_bB8CbOL6GJQC8=Bzt6x6vDg@mail.gmail.com
This addresses a couple of bugs in the REINDEX grammar, introduced by
83011ce:
- A name was never specified for DATABASE/SYSTEM, even if the query
included one. This caused such REINDEX queries to always work with any
object name, but we should complain if the object name specified does
not match the name of the database we are connected to. A test is added
for this case in the main regression test suite, provided by Álvaro.
- REINDEX SYSTEM CONCURRENTLY [name] was getting rejected in the
parser. Concurrent rebuilds are not supported for catalogs but the
error provided at execution time is more helpful for the user, and
allowing this flavor results in a simplification of the parsing logic.
- REINDEX DATABASE CONCURRENTLY was rebuilding the index in a
non-concurrent way, as the option was not being appended correctly in
the list of DefElems in ReindexStmt (REINDEX (CONCURRENTLY) DATABASE was
working fine. A test is added in the TAP tests of reindexdb for this
case, where we already have a REINDEX DATABASE CONCURRENTLY query
running on a small-ish instance. This relies on the work done in
2cbc3c1 for SYSTEM, but here we check if the OIDs of the index relations
match or not after the concurrent rebuild. Note that in order to get
this part to work, I had to tweak the tests so as the index OID and
names are saved separately. This change not affect the reliability or
of the coverage of the existing tests.
While on it, I have implemented a tweak in the grammar to reduce the
parsing by one branch, simplifying things even more.
Author: Michael Paquier, Álvaro Herrera
Discussion: https://postgr.es/m/YttqI6O64wDxGn0K@paquier.xyz
The setting controls tha maximum length of the header line in expanded
format output. Possible settings are full, column, page, or an integer.
the default is full, the current behaviour, and in this case the header
line is the length of the widest line of output. column causes the
header to be truncated to the width of the first column, page causes it
to be truncated to the width of the terminal page, and an integer causes
it to be truncated to that value. If the full value is less than the
page or integer value no truncation occurs. If given without an argument
this option prints its current setting.
Platon Pronko, somewhat modified by me.
Discussion: https://postgr.es/m/f03d38a3-db96-a56e-d1bc-dbbc80bbde4d@gmail.com
sigwait() is in SUSv2 and all targeted Unix systems have it. An earlier
pre-standard function prototype existed on some older systems, but we
no longer need a workaround for that.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Greg Stark <stark@mit.edu>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
Commit c6f2f016 added an explicit check for a Windows "junction point".
That turned out to be needed only because get_dirent_type() was busted
on Windows. It's been fixed by commit 9d3444dc, so remove it.
Add a TAP-test to demonstrate that in-place tablespaces are copied by
pg_basebackup. This exercises the codepath that would fail before
c6f2f016 on Windows, and shows that it still doesn't fail now that we're
using get_dirent_type() on both Windows and Unix.
Back-patch to 15, where in-place tablespaces arrived and caused this
problem (ie directories where previously only symlinks were expected).
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CA%2BhUKGLzLK4PUPx0_AwXEWXOYAejU%3D7XpxnYE55Y%2Be7hB2N3FA%40mail.gmail.com
O_FSYNC was a pre-POSIX way of spelling O_SYNC, supported since commit
9d645fd84c for non-conforming operating systems of the time. It's not
needed on any modern system. We can just use standard O_SYNC directly
if it exists (= all targeted systems except Windows), and get rid of our
OPEN_SYNC_FLAG macro.
Similarly for standard O_DSYNC, we can just use that directly if it
exists (= all targeted systems except DragonFlyBSD), and get rid of our
OPEN_DATASYNC_FLAG macro.
We still avoid choosing open_datasync as a default value for
wal_sync_method if O_DSYNC has the same value as O_SYNC (= only
OpenBSD), so there is no change in default behavior.
Discussion: https://postgr.es/m/CA%2BhUKGJE7y92NY7FG2ftUbZUaqohBU65_Ys_7xF5mUHo4wirTQ%40mail.gmail.com
This patch adds a new SUBSCRIPTION parameter "origin". It specifies
whether the subscription will request the publisher to only send changes
that don't have an origin or send changes regardless of origin. Setting it
to "none" means that the subscription will request the publisher to only
send changes that have no origin associated. Setting it to "any" means
that the publisher sends changes regardless of their origin. The default
is "any".
Usage:
CREATE SUBSCRIPTION sub1 CONNECTION 'dbname=postgres port=9999'
PUBLICATION pub1 WITH (origin = none);
This can be used to avoid loops (infinite replication of the same data)
among replication nodes.
This feature allows filtering only the replication data originating from
WAL but for initial sync (initial copy of table data) we don't have such a
facility as we can only distinguish the data based on origin from WAL. As
a follow-up patch, we are planning to forbid the initial sync if the
origin is specified as none and we notice that the publication tables were
also replicated from other publishers to avoid duplicate data or loops.
We forbid to allow creating origin with names 'none' and 'any' to avoid
confusion with the same name options.
Author: Vignesh C, Amit Kapila
Reviewed-By: Peter Smith, Amit Kapila, Dilip Kumar, Shi yu, Ashutosh Bapat, Hayato Kuroda
Discussion: https://postgr.es/m/CALDaNm0gwjY_4HFxvvty01BOT01q_fJLKQ3pWP9=9orqubhjcQ@mail.gmail.com
This renames the relation storing the relfilenode state into something
more generic as it also stores data for non-toast relations. A
restriction on the number of digits used for the OID number when
filtering toast relation names is removed, while on it, as there is no
need for it.
Reported-by: Justin Pryzby
Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/20220719022652.GE12702@telsasoft.com
Most of these have been introduced in d2d3547 with the new pattern
validation logic, and would leak memory worth an amount of one
PQExpBuffer each time (as of 256 bytes at minimum, possibly more).
Most of the patch has been written by Tang Haiying, with a few tweaks
coming from Álvaro Herrera.
Reported-by: Tang Haiying
Author: Tang Haiying, Álvaro Herrera
Reviewed-by: Mark Dilger, Andres Freund, Álvaro Herrera, Tom Lane, Japin
Li, Michael Paquier, Junwang Zhao
Backpatch-through: 15
Per discussion, this commit includes a couple of changes to these two
flavors of REINDEX:
* The grammar is changed to make the name of the object optional, hence
one can rebuild all the indexes of the wanted area by specifying only
"REINDEX DATABASE;" or "REINDEX SYSTEM;". Previously, the object name
was mandatory and had to match the name of the database on which the
command is issued.
* REINDEX DATABASE is changed to ignore catalogs, making this task only
possible with REINDEX SYSTEM. This is a historical change, but there
was no way to work only on the indexes of a database without touching
the catalogs. We have discussed more approaches here, like the addition
of an option to skip the catalogs without changing the original
behavior, but concluded that what we have here is for the best.
This builds on top of the TAP tests introduced in 5fb5b6c, showing the
change in behavior for REINDEX SYSTEM. reindexdb is updated so as we do
not issue an extra REINDEX SYSTEM when working on a database in the
non-concurrent case, something that was confusing when --concurrently
got introduced, so this simplifies the code.
Author: Simon Riggs
Reviewed-by: Ashutosh Bapat, Bernd Helmle, Álvaro Herrera, Cary Huang,
Michael Paquier
Discussion: https://postgr.es/m/CANbhV-H=NH6Om4-X6cRjDWfH_Mu1usqwkuYVp-hwdB_PSHWRfg@mail.gmail.com
Adding such commands in the main regression test suite is not a good
approach performance-wise as it impacts all the objects in the
regression database, so this additional coverage is added in the TAP
tests of reindexdb where we already run a few REINDEX commands with
SYSTEM and DATABASE so there is no runtime difference for the test.
This additional coverage checks which relations are rewritten with
relfilenode changes, as of:
- a toast index in user table.
- a toast index in catalog table.
- a catalog index.
- a user index.
This test suite is something I have implemented for a separate patch
that reworks a bit the way we handle these two REINDEX behaviors, but it
has enough value in itself to be in a separate commit. This also makes
easier to follow what actually changes once the REINDEX logic is
reworked (currently, DABATASE rewrites both catalog and user tables, and
SYSTEM works only on catalogs).
Discussion: https://postgr.es/m/YtOqA7ldcJQADEE8@paquier.xyz
This is in preparation for building postgres with meson / ninja.
When building with meson, commands are run at the root of the build tree. Add
an option to put build output into the appropriate place. This can be utilized
by src/tools/msvc/ for a minor simplification, which also provides some
coverage for the new option.
To deal with dependencies to the variable set of input files to this script,
add an option to generate a dependency file (which meson / ninja can consume).
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://postgr.es/m/5e216522-ba3c-f0e6-7f97-5276d0270029@enterprisedb.com
This replaces all MemSet() calls with struct initialization where that
is easily and obviously possible. (For example, some cases have to
worry about padding bits, so I left those.)
(The same could be done with appropriate memset() calls, but this
patch is part of an effort to phase out MemSet(), so it doesn't touch
memset() calls.)
Reviewed-by: Ranier Vilela <ranier.vf@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://www.postgresql.org/message-id/9847b13c-b785-f4e2-75c3-12ec77a3b05c@enterprisedb.com
This reverts commit 617d691412.
While I still think the basic idea is attractive, we need to sort
out what happens with built .c files, and there also seem to be
VPATH issues.
The backend already used a mechanically-generated list of *.c files,
but everywhere else we had a manually-written-out list of files in
which to seek translatable messages. Commit b0a55e432 contains the
latest in a long line of failures to update those lists. Rather than
manually fix its oversight, let's change to using "$(wildcard *.c)"
in all these nls.mk files.
Many of these files also have manual references to some *.c files
in other directories, most often src/common/. Perhaps we should try
to improve that situation too; but it's a bit less clear how, so for
now just fix the local file references.
Kyotaro Horiguchi and Tom Lane
Discussion: https://postgr.es/m/20220713.160853.453362706160476128.horikyota.ntt@gmail.com
This moves the list of available languages from nls.mk into a separate
file called po/LINGUAS. Advantages:
- It keeps the parts notionally managed by programmers (nls.mk)
separate from the parts notionally managed by translators (LINGUAS).
- It's the standard practice recommended by the Gettext manual
nowadays.
- The Meson build system also supports this layout (and of course
doesn't know anything about our custom nls.mk), so this would enable
sharing the list of languages between the two build systems.
(The MSVC build system currently finds all po files by globbing, so it
is not affected by this change.)
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/flat/557a9f5c-e871-edc7-2f58-a4140fb65b7b@enterprisedb.com
The following options are added to createuser:
* --valid-until to generate a VALID UNTIL clause for the role created.
* --bypassrls/--no-bypassrls for BYPASSRLS/NOBYPASSRLS.
* -m/--member to make the new role a member of an existing role, with an
extra ROLE clause generated. The clause generated overlaps with
-g/--role, but per discussion this was the most popular choice as option
name.
* -a/--admin for the addition of an ADMIN clause.
These option names are chosen to be completely new, so as they do not
impact anybody relying on the existing option set. Tests are added for
the new options and extended a bit, while on it, to cover more patterns
where quotes are added to various elements of the query generated.
Author: Shinya Kato
Reviewed-by: Nathan Bossart, Daniel Gustafsson, Robert Haas, Kyotaro
Horiguchi, David G. Johnston, Przemysław Sztoch
Discussion: https://postgr.es/m/69a9851035cf0f0477bcc5d742b031a3@oss.nttdata.com
This utility supports 23 options that are not really ordered in the
code, making the addition of new things more complicated than necessary.
This cleanup is in preparation for a patch to add even more options.
Discussion: https://postgr.es/m/69a9851035cf0f0477bcc5d742b031a3@oss.nttdata.com
validate_exec() didn't guarantee to set errno to something appropriate
after a failure, leading to callers not being able to print an on-point
message. Improve that.
Noted by Kyotaro Horiguchi, though this isn't exactly his proposal.
Discussion: https://postgr.es/m/20220615.131403.1791191615590453058.horikyota.ntt@gmail.com
pg_upgrade does not use common/logging.c, which is unfortunate
but changing it to do so seems like more work than is justified.
However, we really need to make it work more like common/logging.c
in one respect: the latter expects supplied message strings to not
end with a newline, instead adding one internally. As it stands,
pg_upgrade's logging facilities expect a caller-supplied newline
in some cases and not others, which is already an invitation to bugs,
but the inconsistency with our other frontend code makes it worse.
There are already several places with missing or extra newlines,
and it's inevitable that there won't be more if we let this stand.
Hence, run around and get rid of all trailing newlines in message
strings, and add an Assert that there's not one, similar to the
existing Assert in common/logging.c. Adjust the logging functions
to supply a newline at the right places.
(Some of these strings also have a *leading* newline, which would
be a good thing to get rid of too; but this patch doesn't attempt
that.)
There are some consequent minor changes in output. The ones that
aren't outright bug fixes are generally removal of extra blank
lines that the original coding intentionally inserted. It didn't
seem worth being bug-compatible with that.
Patch by me, reviewed by Kyotaro Horiguchi and Peter Eisentraut
Discussion: https://postgr.es/m/113191.1655233060@sss.pgh.pa.us
Remove PageIsValid() and PageSizeIsValid(), which weren't used and
seem unnecessary.
Some code using these formerly-macros needs some adjustments because
it was previously playing loose with the Page vs. PageHeader types,
which is no longer possible with the functions instead of macros.
Reviewed-by: Amul Sul <sulamul@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/5b558da8-99fb-0a99-83dd-f72f05388517%40enterprisedb.com
When you hit ^C, the terminal driver in Unix-like systems echoes "^C" as
well as sending an interrupt signal (depending on stty settings). At
least libedit (but maybe also libreadline) is then confused about the
current cursor location, and corrupts the display if you try to scroll
back. Fix, by moving to a new line before the next prompt is displayed.
Back-patch to all supported released.
Author: Pavel Stehule <pavel.stehule@gmail.com>
Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/3278793.1626198638%40sss.pgh.pa.us
Commit 9a974cbcba did this for user
tables, but pg_upgrade treats pg_largeobject as a user table, and so
needs the same treatment. Without this fix, if you rewrite the
pg_largeobject table and then perform an upgrade with pg_upgrade, the
table will apparently be empty on the new cluster, while all of your
objects will end up with an orphaned file.
With this fix, instead of the old cluster's pg_largeobject files ending
up orphaned, the original files fro the new cluster do. That's mostly
harmless because we expect the table to be empty, but we might want
to arrange to remove the as part of the upgrade. Since we're still
debating the best way of doing that, I (rhaas) have decided to postpone
dealing with that problem and get the basic fix committed.
Justin Pryzby, reviewed by Shruthi Gowda and by me.
Discussion: http://postgr.es/m/20220701231413.GI13040@telsasoft.com
This commit bumps the runtime value of _WIN32_WINNT to be 0x0A00 for any
builds on Windows. Hence, this makes Windows 10 the minimal requirement
when running PostgreSQL under WIN32, be it for builds of Cygwin, MinGW
or Visual Studio.
The previous minimal runtime version was either Windows Vista when
building with at least Visual Studio 2015 or Windows XP for the rest.
Windows 10 is the most modern version supported by Microsoft, and per
discussion, as we don't have buildfarm members that run older versions
anymore, this is the minimal supported version that suits better for our
needs. This will actually make easier the development of some patches,
two being async I/O and large page handling by avoiding a lot of
compatibility gotchas, on platforms that have most likely few users
anyway.
It is possible to remove MIN_WINNT in win32.h and the macros
IsWindowsXXXOrGreater() that were used in the code at runtime to check
which version of Windows was getting used. The change in pg_locale.c
comes from Juan. Note that all my tests passed, and that the CI is
green. The buildfarm will quickly tell if this needs more adjustments.
Author: Michael Paquier, Juan José Santamaría Flecha
Reviewed-by: Thomas Munro
Discussion: https://postgr.es/m/Yo7tHKD8VCkeNi71@paquier.xyz
By convention, the tab-complete subscription parameters are listed in the
COMPLETE_WITH lists in alphabetical order, but when the "disable_on_error"
parameter was introduced this was not done.
This patch just tidies that up.
Reported-by: Peter Smith
Author: Peter Smith
Reviewed-by: Euler Taveira, Takamichi Osumi
Backpatch-through: 15, where it was introduced
Discussion: https://postgr.es/m/CAHut+PucvKZgg_eJzUW--iL6DXHg1Jwj6F09tQziE3kUF67uLg@mail.gmail.com
We have been using the term RelFileNode to refer to either (1) the
integer that is used to name the sequence of files for a certain relation
within the directory set aside for that tablespace/database combination;
or (2) that value plus the OIDs of the tablespace and database; or
occasionally (3) the whole series of files created for a relation
based on those values. Using the same name for more than one thing is
confusing.
Replace RelFileNode with RelFileNumber when we're talking about just the
single number, i.e. (1) from above, and with RelFileLocator when we're
talking about all the things that are needed to locate a relation's files
on disk, i.e. (2) from above. In the places where we refer to (3) as
a relfilenode, instead refer to "relation storage".
Since there is a ton of SQL code in the world that knows about
pg_class.relfilenode, don't change the name of that column, or of other
SQL-facing things that derive their name from it.
On the other hand, do adjust closely-related internal terminology. For
example, the structure member names dbNode and spcNode appear to be
derived from the fact that the structure itself was called RelFileNode,
so change those to dbOid and spcOid. Likewise, various variables with
names like rnode and relnode get renamed appropriately, according to
how they're being used in context.
Hopefully, this is clearer than before. It is also preparation for
future patches that intend to widen the relfilenumber fields from its
current width of 32 bits. Variables that store a relfilenumber are now
declared as type RelFileNumber rather than type Oid; right now, these
are the same, but that can now more easily be changed.
Dilip Kumar, per an idea from me. Reviewed also by Andres Freund.
I fixed some whitespace issues, changed a couple of words in a
comment, and made one other minor correction.
Discussion: http://postgr.es/m/CA+TgmoamOtXbVAQf9hWFzonUo6bhhjS6toZQd7HZ-pmojtAmag@mail.gmail.com
Discussion: http://postgr.es/m/CA+Tgmobp7+7kmi4gkq7Y+4AM9fTvL+O1oQ4-5gFTT+6Ng-dQ=g@mail.gmail.com
Discussion: http://postgr.es/m/CAFiTN-vTe79M8uDH1yprOU64MNFE+R3ODRuA+JWf27JbhY4hJw@mail.gmail.com
This reverts most of 91c0570a79, f28bf667f6, fe0972ee5e, afdeff1052. The
only thing left is the retry loop in 019_replslot_limit.pl that avoids
spurious failures by retrying a couple times.
We haven't seen any hard evidence that this is caused by anything but slow
process shutdown. We did not find any cases where walsenders did not vanish
after waiting for longer. Therefore there's no reason for this debugging code
to remain.
Discussion: https://postgr.es/m/20220530190155.47wr3x2prdwyciah@alap3.anarazel.de
Backpatch: 15-
When we changed some built-in functions to use anycompatiblearray
instead of anyarray, we created a dump/restore hazard for user-defined
operators and aggregates relying on those functions: the user objects
have to be modified to change their signatures similarly. This causes
pg_upgrade to fail partway through if the source installation contains
such objects. We generally try to have pg_upgrade detect such hazards
and fail before it does anything exciting, so add logic to detect
this case too.
Back-patch to v14 where the change was made.
Justin Pryzby, reviewed by Andrey Borodin
Discussion: https://postgr.es/m/3383880.QJadu78ljV@vejsadalnx
Several buildfarm members are failing the pg_upgrade test in
REL_15_STABLE, though the identical test is fine in HEAD.
On thorntail it's possible to see that the problem is an
overlength socket path name, and I bet the same is true
on the others.
The normally-started postmasters used in the test are already
set up with short socket directory paths, but we neglected to
tell pg_upgrade itself to do likewise when starting child
postmasters, and indeed it seems to be explicitly selecting
the test directory instead.
Back-patch to v15 where the current test script was introduced.
(The previous script might have the same issue, because I don't
see any use of -s/--socketdir in it either; but we've had no
complaints, so leave it alone for now.)
Discussion: https://postgr.es/m/1410025.1656890531@sss.pgh.pa.us
After commit 662dbe2c8, psql tab completion didn't conveniently
support the case of "ALTER EXTENSION foo UPDATE". It'd always
add "TO", which is fine if you want to specify a target version
but not if you don't ... and surely the latter is the much more
common case.
To fix, remove "TO" from the initially offered completion; you now
need to press TAB one additional time to get that. We won't try to
duplicate the old behavior of attempting initial completion on the
target version along with TO. It's too squirrelly to get the quoting
right, and this is such an infrequent usage that it doesn't seem worth
expending a lot of effort and special code on.
Noted by Noah Misch. Back-patch to v15.
Discussion: https://postgr.es/m/20220703083217.GB2476530@rfd.leadboat.com
POSIX shm_open() can sleep for a long time and fail spuriously because
of contention on an internal lock file on Solaris (and presumably
illumos). Commit 389869af fixed the main problem with this, namely that
we could crash, but it's now clear that "posix" is not a good default.
Therefore, choose "sysv" at initdb time on Solaris and illumos. Other
choices are still available by editing the postgresql.conf file.
Back-patch only to 15, because contention is much less likely further
back, and it doesn't seem like a good idea to change this in released
branches. This should clear up the failures on build farm animal
margay.
Discussion: https://postgr.es/m/CA%2BhUKGKqKrCV5xKWfh9rnm%3Do%3DDwZLTLtnsj_XpUi9g5%3DV%2B9oyg%40mail.gmail.com
Second thoughts about 9cd43f6cb: given that we're staying bug-compatible
with the old behavior of using double not single quotes for extension
versions, we can simplify this completion code by pretending that
extension versions *are* identifiers, and not using VERBATIM. Then
_complete_from_query() will think that the query results are identifiers
in need of quoting, and we end up with the same behavior as before.
This doesn't work for Query_for_list_of_available_extension_versions_with_TO,
but let's just drop that: there is no other place where we handle
multi-keyword phrases that way, and it doesn't seem very desirable here
either. Handle completion of "UPDATE TO" in our more usual pattern.
Discussion: https://postgr.es/m/CAMkU=1yV+egSYrzWvbDY8VZ6bKEMrKbzxr-HTuiHi+wDgSUMgA@mail.gmail.com
In 02b8048ba I (tgl) got rid of the need for most tab-completion queries
to return pre-quoted identifiers. But I over-hastily removed the
quote_ident call from Query_for_list_of_available_extension_versions*
too; those still need it, because what is returned isn't an identifier
at all and will (almost?) always need quoting.
Arguably we should use quote_literal here instead. But quote_ident
works too and people may be used to that behavior, so stick with it.
In passing, fix inconsistent omission of schema-qualification in
Query_for_list_of_encodings. That's not a security issue per our
current guidelines, but it ought to be like the rest.
Jeff Janes
Discussion: https://postgr.es/m/CAMkU=1yV+egSYrzWvbDY8VZ6bKEMrKbzxr-HTuiHi+wDgSUMgA@mail.gmail.com
This reverts the changes to pg_upgrade's Makefile and .gitignore done in
15b6d21. The TAP tests run in isolation, executing pg_upgrade in
tmp_check/ in the build directory so as any files created in the
execution path (reindex_hash.sql and delete_old_cluster.{sh,bat}) are
never in the tree, so entries are not necessary in this case. However,
not having these impacts the cleanliness of the code tree when running
./pg_upgrade directly from src/bin/pg_upgrade/.
This commit adds back to .gitignore all the files generated in the
execution path, and the Makefile rule to clean them up if they exist.
Per gripe from Tom Lane.
Discussion: https://postgr.es/m/90595.1655227384@sss.pgh.pa.us
This commit, in completion of 157f873, forces a ROLLBACK for
--single-transaction only when ON_ERROR_STOP is used when one of the
steps defined by -f/-c fails. Hence, COMMIT is always used when
ON_ERROR_STOP is not set, ignoring the status code of the last action
taken in the set of switches specified by -c/-f (previously ROLLBACK
would have been issued even without ON_ERROR_STOP if the last step
failed, while COMMIT was issued if a step in-between failed as long as
the last step succeeded, leading to more inconsistency).
While on it, this adds much more test coverage in this area when not
using ON_ERROR_STOP with multiple switch patterns involving -c and -f
for query files, single queries and slash commands.
The behavior of ON_ERROR_STOP is arguably a bug, but there was no much
support for a backpatch to force a ROLLBACK on a step failure, so this
change is done only on HEAD for now.
Per discussion with Tom Lane and Kyotaro Horiguchi.
Discussion: https://postgr.es/m/Yqbc8bAdwnP02na4@paquier.xyz
Use the same error message for all cases of pathname overrun,
since users aren't going to much care which one was too long.
Add missing newline to said error (as pg_upgrade's version
of pg_fatal requires that).
Add pathname overrun checks for the individual log files,
not just the directories.
Remove initial newline in log files; the new scheme here
guarantees that we'll never be appending to an old file.
Kyotaro Horiguchi and Tom Lane
Discussion: https://postgr.es/m/20220613.120551.729848632120189555.horikyota.ntt@gmail.com
The new show-all-results feature in psql (7844c9918) went out of its
way to show notices next to the results of the statements (in a
multi-statement string) that caused them. This also had the
consequence that notices for a single statement were not shown until
after the statement had executed, instead of right away. After some
discussion, it seems very difficult to satisfy both of these goals, so
here we are giving up on the first goal and just show the notices as
we get them. This restores the pre-7844c9918 behavior for notices.
Reported-by: Alastair McKinley <a.mckinley@analyticsengines.com>
Author: Fabien COELHO <coelho@cri.ensmp.fr>
Discussion: https://www.postgresql.org/message-id/flat/PAXPR02MB760039506C87A2083AD85575E3DA9%40PAXPR02MB7600.eurprd02.prod.outlook.com
Some locales use a comma as decimal separator (like Czech or French),
and psql's 001_basic.pl for \timing was not able to handle that
properly. This fixes the matching regexes to be able to handle both
comma and dot as possible decimal separators, as per a suggestion from
Andrew Dunstan.
psql tests were the only place with such a portability issue
(check-world passed here with a forced LANG/LANGUAGE). These tests are
new as of c0280bc, so there is no need for a backpatch.
Reported-by: Pavel Stehule
Discussion: https://postgr.es/m/CAFj8pRBz8iQmd2aOaCLvO-rJY6vZr-h6Q0qvV0J+yb78J7uiaA@mail.gmail.com
38bfae3 has moved the contents written to files by pg_upgrade under a
new directory called pg_upgrade_output.d/ located in the new cluster's
data folder, and it used a simple structure made of two subdirectories
leading to a fixed structure: log/ and dump/. This design has made
weaker pg_upgrade on repeated calls, as we could get failures when
creating one or more of those directories, while potentially losing the
logs of a previous run (logs are retained automatically on failure, and
cleaned up on success unless --retain is specified). So a user would
need to clean up pg_upgrade_output.d/ as an extra step for any repeated
calls of pg_upgrade. The most common scenario here is --check followed
by the actual upgrade, but one could see a failure when specifying an
incorrect input argument value. Removing entirely the logs would have
the disadvantage of removing all the past information, even if --retain
was specified at some past step.
This result is annoying for a lot of users and automated upgrade flows.
So, rather than requiring a manual removal of pg_upgrade_output.d/, this
redesigns the set of output directories in a more dynamic way, based on
a suggestion from Tom Lane and Daniel Gustafsson. pg_upgrade_output.d/
is still the base path, but a second directory level is added, mostly
named after an ISO-8601-formatted timestamp (in short human-readable,
with milliseconds appended to the name to avoid any conflicts). The
logs and dumps are saved within the same subdirectories as previously,
as of log/ and dump/, but these are located inside the subdirectory
named after the timestamp.
The logs of a given run are removed only after a successful run if
--retain is not used, and pg_upgrade_output.d/ is kept if there are any
logs from a previous run. Note that previously, pg_upgrade would have
kept the logs even after a successful --check but that was inconsistent
compared to the case without --check when using --retain. The code in
charge of the removal of the output directories is now refactored into a
single routine.
Two TAP tests are added with some --check commands (one failure case and
one success case), to look after the issue fixed here. Note that the
tests had to be tweaked a bit to fit with the new directory structure so
as it can find any logs generated on failure. This is still going to
require a change in the buildfarm client for the case where pg_upgrade
is tested without the TAP test, though, but I'll tackle that with a
separate patch where needed.
Reported-by: Tushar Ahuja
Author: Michael Paquier
Reviewed-by: Daniel Gustafsson, Justin Pryzby
Discussion: https://postgr.es/m/77e6ecaa-2785-97aa-f229-4b6e047cbd2b@enterprisedb.com
An error PGresult generated by libpq itself, such as a report of
connection loss, won't have broken-down error fields.
should_processing_continue() blithely assumed that
PG_DIAG_SEVERITY_NONLOCALIZED would always be present, and would
dump core if it wasn't.
Per grepping to see if 6d157e7cb's mistake was repeated elsewhere.
psql --single-transaction is able to handle multiple -c and -f switches
in a single transaction since d5563d7d, but this had the surprising
behavior of forcing a transaction COMMIT even if psql failed with an
error in the client (for example incorrect path given to \copy), which
would generate an error, but still commit any changes that were already
applied in the backend. This commit makes the behavior more consistent,
by enforcing a transaction ROLLBACK if any commands fail, both
client-side and backend-side, so as no changes are applied if one error
happens in any of them.
Some tests are added on HEAD to provide some coverage about all that.
Backend-side errors are unreliable as IPC::Run can complain on SIGPIPE
if psql quits before reading a query result, but that should work
properly in the case where any errors come from psql itself, which is
what the original report is about.
Reported-by: Christoph Berg
Author: Kyotaro Horiguchi, Michael Paquier
Discussion: https://postgr.es/m/17504-76b68018e130415e@postgresql.org
Backpatch-through: 10
The hard-wired PageOutput arguments in usage() and sibling functions
have been a perennial maintenance gotcha, and there's no reason to
think we'll ever get any better about that. Let's get rid of those
magic constants by constructing the output in a buffer where we can
count the newlines before calling PageOutput. (Perhaps this is
microscopically slower; but none of these functions are performance
critical, and anyway we might well be buying back all the cost by
avoiding having to pass most of the data through snprintf.c. I could
not detect any speed difference in a desultory check.) This also
gets rid of the need to assume that platform-specific variations in
the output are insignificant.
While at it, make the code shorter and more abstract by inventing
helper macros HELP0() and HELPN() to encapsulate the specific
output actions being invoked.
Discussion: https://postgr.es/m/365160.1654289490@sss.pgh.pa.us
TAP tests are run from their own directory in the source tree, and in a
VPATH build the execution of the pg_upgrade command was leaving behind a
file in the source tree, that should be left untouched. In order to
avoid this issue, the test moves to PostgreSQL::Test::Utils::tmp_check,
so as any files generated by pg_upgrade do not impact the source tree,
but the build tree. This has as nice side-effect to make unnessary the
presence of such files in pg_upgrade's .gitignore and Makefile. This
strategy is similar to psql's test 010_tab_completion.pl, though the
reasons behind this choice are different.
In passing, fix one misleading test name that was added by 99f6f19.
Per discussion with Peter Eisentraut, Andrew Dunstan, Tom Lane, Andres
Freund and myself.
Discussion: https://postgr.es/m/f80ace33-11fb-1cd3-20f8-98f51d151088@enterprisedb.com
Provide a gloss of which command does what, as all other backslash
commands have. Put the large-object command section into a more
considered spot in the list.
In passing, update the output-lines count in helpVariables()
(oversight in 7844c9918, looks like).
Thibaud Walkowiak, reviewed by Nathan Bossart and myself
Discussion: https://postgr.es/m/43f0439c-df3e-a045-ac99-af33523cc2d4@dalibo.com
"\r" (for progress output) must not be inside a translatable string
(gettext gets upset).
In passing, move the minimum supported version number to a separate
argument, so that we don't have to retranslate this string every year
now.
The changes to show all query results (7844c9918) broke \timing output
in case of an error; it didn't update the timing result and showed
0.000 ms.
Fix by updating the timing result also in the error case. Also, for
robustness, update the timing result any time a result is obtained,
not only for the last, so a sensible value is always available.
Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Author: Richard Guo <guofenglinux@gmail.com>
Author: Fabien COELHO <coelho@cri.ensmp.fr>
Discussion: https://www.postgresql.org/message-id/3813350.1652111765%40sss.pgh.pa.us
This is based on a set of suggestions from Noah, with the following
changes made:
- The set of databases created in the tests are now prefixed with
"regression" to not trigger any warnings with name restrictions when
compiling the code with -DENFORCE_REGRESSION_TEST_NAME_RESTRICTIONS, and
now only the first name checks after the Windows case of double quotes
mixed with backslashes.
- Fix an issue with EXTRA_REGRESS_OPTS, which were not processed in a
way consistent with 027_stream_regress.pl (missing space between the
option string and pg_regress). This got introduced in 7dd3ee5.
- Add a check on the exit code of the pg_regress command, to catch
failures after running the regression tests.
Reviewed-by: Noah Misch
Discussion: https://postgr.es/m/YoHhWD5vQzb2mmiF@paquier.xyz
I rephrased the error messages to be more in the style of
option_parse_int(), and also made use of the new "detail" message
facility. I didn't actually use option_parse_int() (which could be
used for -n) because libpgfeutils wasn't used here yet and I wanted to
keep this just to string changes. But it could be done in the future.
This commit addresses the following issues in the TAP tests of
pg_upgrade, introduced in 322becb:
- Remove --port and --host for commands that already rely on a node's
environment PGHOST and PGPORT.
- Switch from run_log() to command_ok(), as all the commands executed in
the tests should succeed.
- Change EXTRA_REGRESS_OPTS to make it count as a shell fragment (fixing
s/OPT/OPTS on a way), to be compatible with the various Makefiles using
it as well as 027_stream_regress.pl in the recovery tests. The command
built for the execution the pg_regress command is reformatted, while on
it, to map with the recovery test doing the same thing (we should
refactor and consolidate that in the future, perhaps).
- Re-add the test for database names stressing the behavior of
backslashes with double quotes, mostly here for Windows.
Tests doable with the upgrade across different major versions still work
the same way.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/20220502042718.GB1565149@rfd.leadboat.com
Commit aa0105141 assigned fixed OIDs to template0 and postgres
in a very ad-hoc way. Notably, instead of teaching Catalog.pm
about these OIDs, the unused_oids script was just hacked to
not show them as unused. That's problematic since, for example,
duplicate_oids wouldn't report any future conflict. Hence,
invent a macro DECLARE_OID_DEFINING_MACRO() that can be used to
define an OID that is known to Catalog.pm and will participate
in duplicate-detection as well as renumbering by renumber_oids.pl.
(We don't anticipate renumbering these particular OIDs, but we
might as well build out all the Catalog.pm infrastructure while
we're here.)
Another issue is that aa0105141 neglected to touch IsPinnedObject,
with the result that it now claimed template0 and postgres are
pinned. The right thing to do there seems to be to teach it that
no database is pinned, since in fact DROP DATABASE doesn't check
for pinned-ness (and at least for these cases, that is an
intentional choice). It's not clear whether this wrong answer
had any visible effect, but perhaps it could have resulted in
erroneous management of dependency entries.
In passing, rename the TemplateDbOid macro to Template1DbOid
to reduce confusion (likely we should have done that way back
when we invented template0, but we didn't), and rename the
OID macros for template0 and postgres to have a similar style.
There are no changes to postgres.bki here, so no need for a
catversion bump.
Discussion: https://postgr.es/m/2935358.1650479692@sss.pgh.pa.us
psql, pg_dump, and pg_amcheck share code to process object name
patterns like 'foo*.bar*' to match all tables with names starting in
'bar' that are in schemas starting with 'foo'. Before v14, any number
of extra name parts were silently ignored, so a command line '\d
foo.bar.baz.bletch.quux' was interpreted as '\d bletch.quux'. In v14,
as a result of commit 2c8726c4b0, we
instead treated this as a request for table quux in a schema named
'foo.bar.baz.bletch'. That caused problems for people like Justin
Pryzby who were accustomed to copying strings of the form
db.schema.table from messages generated by PostgreSQL itself and using
them as arguments to \d.
Accordingly, revise things so that if an object name pattern contains
more parts than we're expecting, we throw an error, unless there's
exactly one extra part and it matches the current database name.
That way, thisdb.myschema.mytable is accepted as meaning just
myschema.mytable, but otherdb.myschema.mytable is an error, and so
is some.random.garbage.myschema.mytable.
Mark Dilger, per report from Justin Pryzby and discussion among
various people.
Discussion: https://www.postgresql.org/message-id/20211013165426.GD27491%40telsasoft.com
Remove meaningless "failures" column from the aggregate logging. It
was just a sum of "serialization failures" and "deadlock failures".
Pointed out by Tom Lane. Patch reviewed by Fabien COELHO.
Discussion: https://postgr.es/m/4183048.1649536705%40sss.pgh.pa.us
The new option set of pg_receivewal introduced in 042a923 to control the
compression method makes it now easy to pass down various options,
including the compression level. The change to be able to do is simple,
and requires one LZ4F_preferences_t fed to LZ4F_compressBegin().
Note that LZ4F_INIT_PREFERENCES could be used to initialize the contents
of LZ4F_preferences_t as required by LZ4, but this is only available
since v1.8.3. memset()'ing its structure to 0 is enough.
Discussion: https://postgr.es/m/YlPQGNAAa04raObK@paquier.xyz
With a pre-v15 server, show NULL for the "ICU Locale" column,
matching what you see in v15 when the database locale isn't ICU.
The previous coding incorrectly repeated datcollate here.
(There's an unfinished discussion about whether to consolidate
these columns in \l output, but in any case we'd want this fix
for \l+ output.)
Euler Taveira, per report from Christoph Berg
Discussion: https://postgr.es/m/YlmIFCqu+TZSW4rB@msg.df7cb.de
Input for these should be case-insensitive, but was not completely
so. Comparing to the similar queries for timezone names, I realized
that we'd missed forcing the comparison pattern to lower-case.
With that, it behaves as I expect.
While here, flatten the sub-selects in these queries; I don't
find that those add any readability.
Discussion: https://postgr.es/m/3369130.1649348542@sss.pgh.pa.us
Define "parameters with non-default settings" as being those that
not only have pg_settings.source different from 'default', but
also have a current value different from the hard-wired boot_val.
Adding the latter restriction removes a number of not-very-interesting
cases where the active setting is chosen by initdb but in practice
tends to be the same all the time.
Per discussion with Jonathan Katz.
Discussion: https://postgr.es/m/YlFQLzlPi4QD0wSi@msg.df7cb.de
Since babbbb5 and the introduction of LZ4 in pg_receivewal, the
compression of the WAL archived is controlled by two options:
- --compression-method with "gzip", "none" or "lz4" as possible value.
- --compress=N to specify a compression level. This includes a
backward-incompatible change where a value of 0 leads to a failure
instead of no compression enforced.
This commit takes advantage of a4b5754 and 3603f7c to rework the
compression options of pg_receivewal, as of:
- The removal of --compression-method.
- The extenction of --compress to use the same grammar as pg_basebackup,
with a METHOD:DETAIL format, where a METHOD is "gzip", "none" or "lz4"
and a DETAIL is a comma-separated list of options, the only keyword
supported is now "level" to control the compression level. If only an
integer is specified as value of this option, "none" is implied on 0
and "gzip" is implied otherwise. This brings back --compress to be
backward-compatible with ~14, while still supporting LZ4.
This has also the advantage of centralizing the set of checks used by
pg_receivewal to validate its compression options.
Author: Michael Paquier
Reviewed-by: Robert Haas, Georgios Kokolatos
Discussion: https://postgr.es/m/YlPQGNAAa04raObK@paquier.xyz
Enforce __pg_log_level message filtering centrally in logging.c,
instead of relying on the calling macros to do it. This is more
reliable (e.g. it works correctly for direct calls to pg_log_generic)
and it saves a percent or so of total code size because we get rid of
so many duplicate checks of __pg_log_level.
This does mean that argument expressions in a logging macro will be
evaluated even if we end up not printing anything. That seems of
little concern for INFO and higher levels as those messages are printed
by default, and most of our frontend programs don't even offer a way to
turn them off. I left the unlikely() checks in place for DEBUG
messages, though.
Discussion: https://postgr.es/m/3993549.1649449609@sss.pgh.pa.us
The same structure, with the same set of elements (for none, lz4, gzip
and zstd), exists in compression.h, so let's make use of the centralized
version instead of duplicating things. Some of the variables used
previously for WalCompressionMethod are renamed to stick better with the
new structure and routine names.
WalCompressionMethod was leading to some confusion in walmethods.c, as
it was sometimes used to refer to some data unrelated to WAL.
Reported-by: Robert Haas
Author: Michael Paquier
Reviewed-by: Robert Haas, Georgios Kokolatos
Discussion: https://postgr.es/m/YlPQGNAAa04raObK@paquier.xyz
Compression option handling (level, algorithm or even workers) can be
used across several parts of the system and not only base backups.
Structures, objects and routines are renamed in consequence, to remove
the concept of base backups from this part of the code making this
change straight-forward.
pg_receivewal, that has gained support for LZ4 since babbbb5, will make
use of this infrastructure for its set of compression options, bringing
more consistency with pg_basebackup. This cleanup needs to be done
before releasing a beta of 15. pg_dump is a potential future target, as
well, and adding more compression options to it may happen in 16~.
Author: Michael Paquier
Reviewed-by: Robert Haas, Georgios Kokolatos
Discussion: https://postgr.es/m/YlPQGNAAa04raObK@paquier.xyz
All but a few existing callers assume without checking that this
function succeeds. While it probably will, that's a poor excuse for
not checking. Let's make it return void and instead throw an error
if it doesn't find the block reference. Callers that actually need
to handle the no-such-block case must now use the underlying function
XLogRecGetBlockTagExtended.
In addition to being a bit less error-prone, this should also serve
to suppress some Coverity complaints about XLogRecGetBlockRefInfo.
While at it, clean up some inconsistency about use of the
XLogRecHasBlockRef macro: make XLogRecGetBlockTagExtended use
that instead of open-coding the same condition, and avoid calling
XLogRecHasBlockRef twice in relevant code paths. (That is,
calling XLogRecHasBlockRef followed by XLogRecGetBlockTag is now
deprecated: use XLogRecGetBlockTagExtended instead.)
Patch HEAD only; this doesn't seem to have enough value to consider
a back-branch API break.
Discussion: https://postgr.es/m/425039.1649701221@sss.pgh.pa.us
\dconfig without an argument originally printed all parameters,
but it seems more useful to print only those parameters with
non-default settings. You can easily get the show-everything
behavior with "\dconfig *", but that output is unwieldy and
seems unlikely to be wanted very often.
Per suggestion from Christoph Berg.
Discussion: https://postgr.es/m/YlFQLzlPi4QD0wSi@msg.df7cb.de
wrasse, at least, moans about the lack of any "return" statement
in these functions. You'd think pretty much everything would
know that exit(1) doesn't return, but evidently not.
Get rid of the separate "FATAL" log level, as it was applied
so inconsistently as to be meaningless. This mostly involves
s/pg_log_fatal/pg_log_error/g.
Create a macro pg_fatal() to handle the common use-case of
pg_log_error() immediately followed by exit(1). Various
modules had already invented either this or equivalent macros;
standardize on pg_fatal() and apply it where possible.
Invent the ability to add "detail" and "hint" messages to a
frontend message, much as we have long had in the backend.
Except where rewording was needed to convert existing coding
to detail/hint style, I have (mostly) resisted the temptation
to change existing message wording.
Patch by me. Design and patch reviewed at various stages by
Robert Haas, Kyotaro Horiguchi, Peter Eisentraut and
Daniel Gustafsson.
Discussion: https://postgr.es/m/1363732.1636496441@sss.pgh.pa.us
Commit 5a2832465f added
addFooterToPublicationDesc() as a wrapper around
printTableAddFooter(). The translation marker _() was moved to the
body of addFooterToPublicationDesc(), but addFooterToPublicationDesc()
was not added to GETTEXT_TRIGGERS, so those strings were lost for
translation. To fix, add the translation markers to the call sites of
addFooterToPublicationDesc() and remove the translation marker from
the body of the function. This seems easiest since there were only
two callers and it keeps the API consistent with
printTableAddFooter(). While we're here, add some const decorations
to the prototype of addFooterToPublicationDesc() for consistency with
printTableAddFooter().
These are usually not useful since users will use packaged
distributions and won't be interested in rebuilding their installation
from source. Also, we have only used these kinds of hints for some
features and in some places, not consistently throughout.
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/2552aed7-d0e9-280a-54aa-2dc7073f371d%40enterprisedb.com
Plain \dconfig is basically equivalent to SHOW except that you can
give it a pattern with wildcards, either to match multiple GUCs or
because you don't exactly remember the name you want.
\dconfig+ adds type, context, and access-privilege information,
mainly because every other kind of object privilege has a psql command
to show it, so GUC privileges should too. (A form of this command was
in some versions of the patch series leading up to commit a0ffa885e.
We pulled it out then because of doubts that the design and code were
up to snuff, but I think subsequent work has resolved that.)
In passing, fix incorrect completion of GUC names in GRANT/REVOKE
ON PARAMETER: a0ffa885e neglected to use the VERBATIM form of
COMPLETE_WITH_QUERY, so it misbehaved for custom (qualified) GUC
names.
Mark Dilger and Tom Lane
Discussion: https://postgr.es/m/3118455.1649267333@sss.pgh.pa.us
Add support for unlogged sequences. Unlike for unlogged tables, this
is not a performance feature. It allows sequences associated with
unlogged tables to be excluded from replication.
A new subcommand ALTER SEQUENCE ... SET LOGGED/UNLOGGED is added.
An identity/serial sequence now automatically gets and follows the
persistence level (logged/unlogged) of its owning table. (The
sequences owned by temporary tables were already temporary through the
separate mechanism in RangeVarAdjustRelationPersistence().) But you
can still change the persistence of an owned sequence separately.
Also, pg_dump and pg_upgrade preserve the persistence of existing
sequences.
Discussion: https://www.postgresql.org/message-id/flat/04e12818-2f98-257c-b926-2845d74ed04f%402ndquadrant.com
Change two macros to be static inline functions instead to keep the
data type consistent. This avoids a "comparison is always true"
warning that was occurring with -Wtype-limits. In the process, change
the names to look less like macros.
Discussion: https://postgr.es/m/20220407063505.njnnrmbn4sxqfsts@alap3.anarazel.de
Allow extensions to specify a new custom resource manager (rmgr),
which allows specialized WAL. This is meant to be used by a Table
Access Method or Index Access Method.
Prior to this commit, only Generic WAL was available, which offers
support for recovery and physical replication but not logical
replication.
Reviewed-by: Julien Rouhaud, Bharath Rupireddy, Andres Freund
Discussion: https://postgr.es/m/ed1fb2e22d15d3563ae0eb610f7b61bb15999c0a.camel%40j-davis.com
With stats now being stored in shared memory, the GUC isn't needed
anymore. However, the pg_stat_tmp directory and PG_STAT_TMP_DIR define are
kept, as pg_stat_statements (and some out-of-core extensions) store data in
it.
Docs will be updated in a subsequent commit, together with the other pending
docs updates due to shared memory stats.
Author: Andres Freund <andres@anarazel.de>
Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Reviewed-By: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20220330233550.eiwsbearu6xhuqwe@alap3.anarazel.de
Discussion: https://postgr.es/m/20220303021600.hs34ghqcw6zcokdh@alap3.anarazel.de
This option is useful to do a rewind with the server configuration file
(aka postgresql.conf) located outside the data directory, which is
something that some Linux distributions and some HA tools like to rely
on. As a result, this can simplify the logic around a rewind by
avoiding the copy of such files before running pg_rewind.
This option affects pg_rewind when it internally starts the target
cluster with some "postgres" commands, adding -c config_file=FILE to the
command strings generated, when:
- retrieving a restore_command using a "postgres -C" command for
-c/--restore-target-wal.
- forcing crash recovery once to get the cluster into a clean shutdown
state.
Author: Gunnar "Nick" Bluth
Reviewed-by: Michael Banck, Alexander Kukushkin, Michael Paquier,
Alexander Alekseev
Discussion: https://postgr.es/m/7c59265d-ac50-b0aa-ca1e-65e8bd27642a@pro-open.de
Exclusive-mode backups have been deprecated since 9.6 (when
non-exclusive backups were introduced) due to the issues
they can cause should the system crash while one is running and
generally because non-exclusive provides a much better interface.
Further, exclusive backup mode wasn't really being tested (nor was most
of the related code- like being able to log in just to stop an exclusive
backup and the bits of the state machine related to that) and having to
possibly deal with an exclusive backup and the backup_label file
existing during pg_basebackup, pg_rewind, etc, added other complexities
that we are better off without.
This patch removes the exclusive backup mode, the various special cases
for dealing with it, and greatly simplifies the online backup code and
documentation.
Authors: David Steele, Nathan Bossart
Reviewed-by: Chapman Flack
Discussion: https://postgr.es/m/ac7339ca-3718-3c93-929f-99e725d1172c@pgmasters.nethttps://postgr.es/m/CAHg+QDfiM+WU61tF6=nPZocMZvHDzCK47Kneyb0ZRULYzV5sKQ@mail.gmail.com
This patch allows "PGC_SUSET" parameters to be set by non-superusers
if they have been explicitly granted the privilege to do so.
The privilege to perform ALTER SYSTEM SET/RESET on a specific parameter
can also be granted.
Such privileges are cluster-wide, not per database. They are tracked
in a new shared catalog, pg_parameter_acl.
Granting and revoking these new privileges works as one would expect.
One caveat is that PGC_USERSET GUCs are unaffected by the SET privilege
--- one could wish that those were handled by a revocable grant to
PUBLIC, but they are not, because we couldn't make it robust enough
for GUCs defined by extensions.
Mark Dilger, reviewed at various times by Andrew Dunstan, Robert Haas,
Joshua Brindle, and myself
Discussion: https://postgr.es/m/3D691E20-C1D5-4B80-8BA5-6BEB63AF3029@enterprisedb.com
Commit 4a39f87acd changed the aggregated log format. Problem is, now
the explanatory paragraph for the log line in the document is too
long. Also the log format included more optional columns, and it's
harder to parse the log lines. This commit tries to solve the
problems.
- There's no optional log columns anymore. If a column is not
meaningful with provided pgbench option, it will be presented as 0.
- Reorder the log columns so that it's easier to parse them.
- Adjust explanatory paragraph for the log line in the doc.
Discussion: https://postgr.es/m/flat/202203280757.3tu4ovs3petm%40alvherre.pgsql
The pg_fatal log which included filesizes were using UINT64_FORMAT for
the size_t variables, which failed on 32 bit buildfarm animals. Change
to using plain int instead, which is in line with how digestControlFile
is doing it already.
Per buildfarm animals florican and lapwing.
Discussion: https://postgr.es/m/13C2BF64-4A6D-47E4-9181-3A658F00C9B7@yesql.se
There's a race condition if a file changes in the source system
after we have collected the file list. If the file becomes larger,
we only fetched up to its original size. That can easily result in
a truncated file. That's not a problem for relation files, files
in pg_xact, etc. because any actions on them will be replayed from
the WAL. However, configuration files are affected.
This commit mitigates the race condition by fetching small files in
whole, even if they have grown. A test is added in which an extra
file copied is concurrently grown with the output of pg_rewind thus
guaranteeing it to have changed in size during the operation. This
is not a full fix: we still believe the original file size for files
larger than 1 MB. That should be enough for configuration files,
and doing more than that would require big changes to the chunking
logic in libpq_source.c.
This mitigates the race condition if the file is modified between
the original scan of files and copying the file, but there's still
a race condition if a file is changed while it's being copied.
That's a much smaller window, though, and pg_basebackup has the
same issue.
This race can be seen with pg_auto_failover, which frequently uses
ALTER SYSTEM, which updates postgresql.auto.conf. Often, pg_rewind
will fail, because the postgresql.auto.conf file changed concurrently
and a partial version of it was copied to the target. The partial
file would fail to parse, preventing the server from starting up.
Author: Heikki Linnakangas
Reviewed-by: Cary Huang
Discussion: https://postgr.es/m/f67feb24-5833-88cb-1020-19a4a2b83ac7%40iki.fi
The test logic is extended with two new concepts:
- Addition of a compression command called compress_cmd, executed
between restore_cmd and dump_cmd to control the contents of the dumps.
In the case of this commit, this is used to compress or decompress
elements of a dump to test new code paths.
- Addition of a new flag called compile_option, to check if a set of
tests can be executed depending on the ./configure options used in a
given build.
The tests introduced here are for gzip, but they are designed so as they
can easily be extended for new compression methods.
Author: Georgios Kokolatos, Rachel Heaton
Discussion: https://postgr.es/m/faUNEOpts9vunEaLnmxmG-DldLSg_ql137OC3JYDmgrOMHm1RvvWY2IdBkv_CRxm5spCCb_OmKNk2T03TMm0fBEWveFF9wA1WizPuAgB7Ss=@protonmail.com
Previously, psql printed only the last result if a command string
returned multiple result sets. Now it prints all of them. The
previous behavior can be obtained by setting the psql variable
SHOW_ALL_RESULTS to off.
This is a significantly enhanced version of
3a51306722 (that was later reverted).
There is also much more test coverage for various psql features now.
Author: Fabien COELHO <coelho@cri.ensmp.fr>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: "Iwata, Aya" <iwata.aya@jp.fujitsu.com> (earlier version)
Reviewed-by: Daniel Verite <daniel@manitou-mail.org> (earlier version)
Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com> (earlier version)
Reviewed-by: vignesh C <vignesh21@gmail.com> (earlier version)
Discussion: https://www.postgresql.org/message-id/flat/alpine.DEB.2.21.1904132231510.8961@lancre
Before this patch, there was some code that tried to make sure that the
buffer was always big enough at the start, and then asserted that it
didn't need to be enlarged later. However, the code to make sure it was
big enough at the start doesn't actually work, and therefore it was
possible to fail an assertion and crash later.
Remove the code that tries to make sure the buffer is always big enough
at the start in favor of enlarging the buffer as we go along whenever
that is necessary.
The mistake probably happened because, on the server side, we do
actually need to guarantee that the buffer is big enough at the start
to avoid subsequent resizings. However, in that case, the calling
code makes promises about how much data it will provide at once, but
here, that's not the case.
Report by Justin Pryzby. Analysis by me. Patch by Dipesh Pandit.
Discussion: http://postgr.es/m/20220330143536.GG28503@telsasoft.com
This is essentially the same as applying VACUUM FULL to a partitioned
table, which has been supported since commit 3c3bb99330 (March 2017).
While there's no great use case in applying CLUSTER to partitioned
tables, we don't have any strong reason not to allow it either.
For now, partitioned indexes cannot be marked clustered, so an index
must always be specified.
While at it, rename some variables that were RangeVars during the
development that led to 8bc717cb88 but never made it that way to the
source tree; there's no need to perpetuate names that have always been
more confusing than helpful.
Author: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Matthias van de Meent <boekewurm+postgres@gmail.com>
Discussion: https://postgr.es/m/20201028003312.GU9241@telsasoft.com
Discussion: https://postgr.es/m/20200611153502.GT14879@telsasoft.com
This commit includes a set of improvements to help with the debugging of
failures in these new TAP tests:
- Instead of a plain diff command to compare the dumps generated, use
File::Compare::compare for the same effect. diff is still used to
provide more context in the event of an error.
- Log the contents of regression.diffs if the pg_regress command fails.
- Unify the format of the logs generated, getting inspiration from the
style used in 027_stream_regress.pl.
wrasse is the only buildfarm member that has reported a failure until
now after the introduction of 322becb, complaining that the dumps
generated do not match, and I am lacking information to understand what
is going in this environment.
This simplifies a lot of code in the tests of pg_upgrade without
sacrificing its coverage:
- Removal of test.sh used for builds with make, that has accumulated
over the years tweaks for problems that are solved in a duplicated way
by the centralized TAP framework (initialization of the various
environment variables PG*, port selection).
- Removal of the code in MSVC to test pg_upgrade. This was roughly a
duplicate of test.sh adapted for Windows, with an extra footprint of
a pg_regress command and all the assumptions behind it.
Support for upgrades with older versions is changed, not removed.
test.sh was able to set up the regression database on the old instance
by launching itself the pg_regress command and a dependency to the
source tree of thd old cluster, with tweaks on the command arguments to
adapt across the versions used. This created a backward-compatibility
dependency with older pg_regress commands, and recent changes like
d1029bb have made that much more complicated.
Instead, this commit allows tests with older major versions by
specifying a path to a SQL dump (taken with pg_dumpall from the old
cluster's installation) that will be loaded into the old instance to
upgrade instead of running pg_regress, through an optional environment
variable called $olddump. This requires a second variable called
$oldinstall to point to the base path of the installation of the old
cluster. This method is more in line with the buildfarm client that
uses a set of static dumps to set up an old instance, so hopefully we
will be able to reuse what is introduced in this commit there. The last
step of the tests that checks for differences between the two dumps
taken still needs to be improved as it can fail, requiring a manual
lookup at the dumps. This is not different from the old way of testing
where things could fail at the last step.
Support for EXTRA_REGRESS_OPTS is kept. vcregress.pl in the MSVC
scripts still handles the test of pg_upgrade with its upgradecheck, and
bincheck is changed to skip pg_upgrade.
Author: Michael Paquier
Reviewed-by: Andrew Dunstan, Andres Freund, Rachel Heaton, Tom Lane,
Discussion: https://postgr.es/m/YJ8xTmLQkotVLpN5@paquier.xyz
This breaks out the fetch-it-all-and-print case in SendQuery() into a
separate function. This makes the code more similar to the other
cases \gdesc and run query with FETCH_COUNT, and makes SendQuery()
itself a bit smaller.
Extracted from a larger patch with more changes in this area to
follow.
Author: Fabien COELHO <coelho@cri.ensmp.fr>
Discussion: https://www.postgresql.org/message-id/flat/alpine.DEB.2.21.1904132231510.8961@lancre
Compression with gzip has never been supported in the tar format of
pg_dump since this code has been introduced in c3e18804, as the use of
buffered I/O in gzdopen() changes the file positioning that tar
requires. The original idea behind the use of compression with the tar
mode is to be able to include compressed data files (named %u.dat.gz)
and blob files (blob_%u.dat.gz) in the tarball generated by the dump,
with toc.dat, that tracks down if compression is used in the dump,
always uncompressed.
Note that this commit removes the dump part of the code as well as the
restore part, removing any dependency to zlib in pg_backup_tar.c. There
could be an argument behind keeping around the restore part, but this
would require one to change the internals of a tarball previously dumped
so as data and blob files are compressed with toc.dat itself changed to
track down if compression is enabled. However, the argument about
gzdopen() still holds in the read case with pg_restore.
Removing this code simplifies future additions related to compression in
pg_dump.
Author: Georgios Kokolatos, Rachel Heaton
Discussion: https://postgr.es/m/faUNEOpts9vunEaLnmxmG-DldLSg_ql137OC3JYDmgrOMHm1RvvWY2IdBkv_CRxm5spCCb_OmKNk2T03TMm0fBEWveFF9wA1WizPuAgB7Ss=@protonmail.com
libzstd allows transparent parallel compression just by setting
an option when creating the compression context, so permit that
for both client and server-side backup compression. To use this,
use something like pg_basebackup --compress WHERE-zstd:workers=N
where WHERE is "client" or "server" and N is an integer.
When compression is performed on the server side, this will spawn
threads inside the PostgreSQL backend. While there is almost no
PostgreSQL server code which is thread-safe, the threads here are used
internally by libzstd and touch only data structures controlled by
libzstd.
Patch by me, based in part on earlier work by Dipesh Pandit
and Jeevan Ladhe. Reviewed by Justin Pryzby.
Discussion: http://postgr.es/m/CA+Tgmobj6u-nWF-j=FemygUhobhryLxf9h-wJN7W-2rSsseHNA@mail.gmail.com
Linux thinks that something like "createdb foo -S bar" is perfectly
fine, but Windows wants the options to precede any bare arguments, so
we must write "createdb -S bar foo" for portability.
Per reports from CI, the buildfarm, and Andres.
Discussion: http://postgr.es/m/20220329173536.7d2ywdatsprxl4x6@alap3.anarazel.de
Because this strategy logs changes on a block-by-block basis, it
avoids the need to checkpoint before and after the operation.
However, because it logs each changed block individually, it might
generate a lot of extra write-ahead logging if the template database
is large. Therefore, the older strategy remains available via a new
STRATEGY parameter to CREATE DATABASE, and a corresponding --strategy
option to createdb.
Somewhat controversially, this patch assembles the list of relations
to be copied to the new database by reading the pg_class relation of
the template database. Cross-database access like this isn't normally
possible, but it can be made to work here because there can't be any
connections to the database being copied, nor can it contain any
in-doubt transactions. Even so, we have to use lower-level interfaces
than normal, since the table scan and relcache interfaces will not
work for a database to which we're not connected. The advantage of
this approach is that we do not need to rely on the filesystem to
determine what ought to be copied, but instead on PostgreSQL's own
knowledge of the database structure. This avoids, for example,
copying stray files that happen to be located in the source database
directory.
Dilip Kumar, with a fairly large number of cosmetic changes by me.
Reviewed and tested by Ashutosh Sharma, Andres Freund, John Naylor,
Greg Nancarrow, Neha Sharma. Additional feedback from Bruce Momjian,
Heikki Linnakangas, Julien Rouhaud, Adam Brusselback, Kyotaro
Horiguchi, Tomas Vondra, Andrew Dunstan, Álvaro Herrera, and others.
Discussion: http://postgr.es/m/CA+TgmoYtcdxBjLh31DLxUXHxFVMPGzrU5_T=CYCvRyFHywSBUQ@mail.gmail.com
When we try to set the zstd compression level either on the client
or on the server, check for errors.
For any algorithm, on the client side, don't try to set the compression
level unless the user specified one. This was visibly broken for
zstd, which managed to set -1 rather than 0 in this case, but tidy
up the code for the other methods, too.
On the client side, if we fail to create a ZSTD_CCtx, exit after
reporting the error. Otherwise we'll dereference a null pointer.
Patch by me, reviewed by Dipesh Pandit.
Discussion: http://postgr.es/m/CA+TgmoZK3zLQUCGi1h4XZw4jHiAWtcACc+GsdJR1_Mc19jUjXA@mail.gmail.com
MERGE performs actions that modify rows in the target table using a
source table or query. MERGE provides a single SQL statement that can
conditionally INSERT/UPDATE/DELETE rows -- a task that would otherwise
require multiple PL statements. For example,
MERGE INTO target AS t
USING source AS s
ON t.tid = s.sid
WHEN MATCHED AND t.balance > s.delta THEN
UPDATE SET balance = t.balance - s.delta
WHEN MATCHED THEN
DELETE
WHEN NOT MATCHED AND s.delta > 0 THEN
INSERT VALUES (s.sid, s.delta)
WHEN NOT MATCHED THEN
DO NOTHING;
MERGE works with regular tables, partitioned tables and inheritance
hierarchies, including column and row security enforcement, as well as
support for row and statement triggers and transition tables therein.
MERGE is optimized for OLTP and is parameterizable, though also useful
for large scale ETL/ELT. MERGE is not intended to be used in preference
to existing single SQL commands for INSERT, UPDATE or DELETE since there
is some overhead. MERGE can be used from PL/pgSQL.
MERGE does not support targetting updatable views or foreign tables, and
RETURNING clauses are not allowed either. These limitations are likely
fixable with sufficient effort. Rewrite rules are also not supported,
but it's not clear that we'd want to support them.
Author: Pavan Deolasee <pavan.deolasee@gmail.com>
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Author: Amit Langote <amitlangote09@gmail.com>
Author: Simon Riggs <simon.riggs@enterprisedb.com>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: Andres Freund <andres@anarazel.de> (earlier versions)
Reviewed-by: Peter Geoghegan <pg@bowt.ie> (earlier versions)
Reviewed-by: Robert Haas <robertmhaas@gmail.com> (earlier versions)
Reviewed-by: Japin Li <japinli@hotmail.com>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>
Reviewed-by: Zhihong Yu <zyu@yugabyte.com>
Discussion: https://postgr.es/m/CANP8+jKitBSrB7oTgT9CY2i1ObfOt36z0XMraQc+Xrz8QB0nXA@mail.gmail.com
Discussion: https://postgr.es/m/CAH2-WzkJdBuxj9PO=2QaO9-3h3xGbQPZ34kJH=HukRekwM-GZg@mail.gmail.com
Discussion: https://postgr.es/m/20201231134736.GA25392@alvherre.pgsql
After closedir() dirent->d_name is not valid anymore. As there alerady are a
few places relying on the limited lifetime of pg_waldump, do so here as well,
and just pg_strdup() the string.
The bug was introduced in fc49e24fa6.
Found by UBSan, run locally.
Backpatch: 11-, like fc49e24fa6 itself.
This is a follow-up to commit 7dac61402 which removed a set of unused
modules from the TAP test.
The Config references in the pg_ctl and pg_rewind tests were removed
in commit 1c6d46293. Fcntl ':mode' and File::stat in the pg_ctl test
were added in c37b3d08c which was probably a leftover from an earlier
version of the patch, as the function using these was added to another
module in that commit.
The Config reference in the ldap test was added in ee56c3b21 which in
turn use $^O instead of interrogating Config.
Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://postgr.es/m/87lewyqk45.fsf@wibble.ilmari.org
In the wake of commit 4a39f87ac, which noticeably increased the
size of struct StatsData and thereby ParsedScript, Coverity started
to complain that ParsedScript was unreasonably large to be passing
by value. The two places that do this are only used during setup,
so they're not really dragging down benchmark measurements --- but
gratuitous inefficiency is not a good look in a benchmarking program.
Convert to use pointers instead.
This allows specifying an optional column list when adding a table to
logical replication. The column list may be specified after the table
name, enclosed in parentheses. Columns not included in this list are not
sent to the subscriber, allowing the schema on the subscriber to be a
subset of the publisher schema.
For UPDATE/DELETE publications, the column list needs to cover all
REPLICA IDENTITY columns. For INSERT publications, the column list is
arbitrary and may omit some REPLICA IDENTITY columns. Furthermore, if
the table uses REPLICA IDENTITY FULL, column list is not allowed.
The column list can contain only simple column references. Complex
expressions, function calls etc. are not allowed. This restriction could
be relaxed in the future.
During the initial table synchronization, only columns included in the
column list are copied to the subscriber. If the subscription has
several publications, containing the same table with different column
lists, columns specified in any of the lists will be copied.
This means all columns are replicated if the table has no column list
at all (which is treated as column list with all columns), or when of
the publications is defined as FOR ALL TABLES (possibly IN SCHEMA that
matches the schema of the table).
For partitioned tables, publish_via_partition_root determines whether
the column list for the root or the leaf relation will be used. If the
parameter is 'false' (the default), the list defined for the leaf
relation is used. Otherwise, the column list for the root partition
will be used.
Psql commands \dRp+ and \d <table-name> now display any column lists.
Author: Tomas Vondra, Alvaro Herrera, Rahila Syed
Reviewed-by: Peter Eisentraut, Alvaro Herrera, Vignesh C, Ibrar Ahmed,
Amit Kapila, Hou zj, Peter Smith, Wang wei, Tang, Shi yu
Discussion: https://postgr.es/m/CAH2L28vddB_NFdRVpuyRBJEBWjz4BSyTB=_ektNRH8NJ1jf95g@mail.gmail.com
The previous method for doing that was to write zeroes into a
predetermined set of page locations. However, there's a roughly
1-in-64K chance that the existing checksum will match by chance,
and yesterday several buildfarm animals started to reproducibly
see that, resulting in test failures because no checksum mismatch
was reported.
Since the checksum includes the page LSN, test success depends on
the length of the installation's WAL history, which is affected by
(at least) the initial catalog contents, the set of locales installed
on the system, and the length of the pathname of the test directory.
Sooner or later we were going to hit a chance match, and today is
that day.
Harden these tests by specifically inverting the checksum field and
leaving all else alone, thereby guaranteeing that the checksum is
incorrect.
In passing, fix places that were using seek() to set up for syswrite(),
a combination that the Perl docs very explicitly warn against. We've
probably escaped problems because no regular buffered I/O is done on
these filehandles; but if it ever breaks, we wouldn't deserve or get
much sympathy.
Although we've only seen problems in HEAD, now that we recognize the
environmental dependencies it seems like it might be just a matter
of time until someone manages to hit this in back-branch testing.
Hence, back-patch to v11 where we started doing this kind of test.
Discussion: https://postgr.es/m/3192026.1648185780@sss.pgh.pa.us
Move DLSUFFIX from makefiles into header files for all platforms.
Move the DLSUFFIX assignment from src/makefiles/ to src/templates/,
have configure read it, and then substitute it into Makefile.global
and pg_config.h. This avoids the need for all makefile rules that
need it to locally set CPPFLAGS. It also resolves an inconsistent
setup between the two Windows build systems.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/2f9861fb-8969-9005-7518-b8e60f2bead9@enterprisedb.com
Bildfarm member prairiedog reported a pgbench TAP test failure after
commit: 4a39f87acd. This is the second
attempt to fix it. It seems older version of Perl does not accept
"\gN". Replace it with plain old "\N" because actually "\gN" is not
necessary here.
Author: Tatsuo Ishii
Reported-by: Tom Lane
Reviewed-by: Tom Lane, Yugo Nagata
Discussion: https://postgr.es/m/2775989.1648060014%40sss.pgh.pa.us
Follow-up improvements for commit 127aea2a based on discussion:
* use fork name for --fork, not number
* use -R, -B as short switches for --relation, --block
* re-alphabetize the list of switches (code, --help and docs)
Suggested-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com> (fork name part)
Reviewed-by: David Christensen <david.christensen@crunchydata.com>
Reviewed-by: Japin Li <japinli@hotmail.com>
Discussion: https://postgr.es/m/3a4c2e93-7976-2320-fc0a-32097fe148a7%40enterprisedb.com
The check for datallowconn being properly set on all databases in the
old cluster errored out on the first instance, rather than report the
set of problematic databases. This adds reporting to a textfile like
how many other checks are performed. While there, also add a comment
to the function as per how other checks are commented.
This check won't catch if template1 isn't allowing connections, since
that's used for connecting in the first place. That error remains as
it is today:
connection to server on socket ".." failed: FATAL: database "template1" is not currently accepting connections
Author: Jeevan Ladhe <jeevan.ladhe@enterprisedb.com>
Reviewed-by: Suraj Kharage <suraj.kharage@enterprisedb.com>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://postgr.es/m/CAOgcT0McABqF_iFFQuuRf9is+gmYMsmUu_SWNikyr=2VGyP9Jw@mail.gmail.com
The Config and Cwd modules were no longer used, but remained imported,
in a number of tests. Remove to keep the imports to the actually used
modules.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/A5A074CD-3198-492B-BE5E-7961EFC3733F@yesql.se
This commit adds support for decoding of sequences to the built-in
replication (the infrastructure was added by commit 0da92dc530).
The syntax and behavior mostly mimics handling of tables, i.e. a
publication may be defined as FOR ALL SEQUENCES (replicating all
sequences in a database), FOR ALL SEQUENCES IN SCHEMA (replicating
all sequences in a particular schema) or individual sequences.
To publish sequence modifications, the publication has to include
'sequence' action. The protocol is extended with a new message,
describing sequence increments.
A new system view pg_publication_sequences lists all the sequences
added to a publication, both directly and indirectly. Various psql
commands (\d and \dRp) are improved to also display publications
including a given sequence, or sequences included in a publication.
Author: Tomas Vondra, Cary Huang
Reviewed-by: Peter Eisentraut, Amit Kapila, Hannu Krosing, Andres
Freund, Petr Jelinek
Discussion: https://postgr.es/m/d045f3c2-6cfb-06d3-5540-e63c320df8bc@enterprisedb.com
Discussion: https://postgr.es/m/1710ed7e13b.cd7177461430746.3372264562543607781@highgo.ca
Bildfarm member prairiedog reported a pgbench TAP test failure after
commit: 4a39f87acd. This commit attempts
to fix some copy&paste errors introduced in the previous commit.
Author: Yugo Nagata
Reported-by: Tom Lane
Discussion: https://postgr.es/m/2775989.1648060014%40sss.pgh.pa.us
It seems possible for the condition being tested to be true in
production, and nobody would never know (except when some data
eventually becomes corrupt?).
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m//202109040001.zky3wgv2qeqg@alvherre.pgsql
Commit ffd53659c4 messed up the
mechanism that was being used to pass parameters to LogStreamerMain()
on Windows. It worked on Linux because only Windows was using threads.
Repair by moving the additional parameters added by that commit into
the 'logstreamer_param' struct.
Along the way, fix a compiler warning on builds without HAVE_LIBZ.
Discussion: http://postgr.es/m/CA+TgmoY5=AmWOtMj3v+cySP2rR=Bt6EGyF_joAq4CfczMddKtw@mail.gmail.com
There are more compression parameters that can be specified than just
an integer compression level, so rename the new COMPRESSION_LEVEL
option to COMPRESSION_DETAIL before it gets released. Introduce a
flexible syntax for that option to allow arbitrary options to be
specified without needing to adjust the main replication grammar,
and common code to parse it that is shared between the client and
the server.
This commit doesn't actually add any new compression parameters,
so the only user-visible change is that you can now type something
like pg_basebackup --compress gzip:level=5 instead of writing just
pg_basebackup --compress gzip:5. However, it should make it easy to
add new options. If for example gzip starts offering fries, we can
support pg_basebackup --compress gzip:level=5,fries=true for the
benefit of users who want fries with that.
Along the way, this fixes a few things in pg_basebackup so that the
pg_basebackup can be used with a server-side compression algorithm
that pg_basebackup itself does not understand. For example,
pg_basebackup --compress server-lz4 could still succeed even if
only the server and not the client has LZ4 support, provided that
the other options to pg_basebackup don't require the client to
decompress the archive.
Patch by me. Reviewed by Justin Pryzby and Dagfinn Ilmari Mannsåker.
Discussion: http://postgr.es/m/CA+TgmoYvpetyRAbbg1M8b3-iHsaN4nsgmWPjOENu5-doHuJ7fA@mail.gmail.com
When serialization or deadlock errors are reported by backend, allow
to retry and continue the benchmarking. For this purpose new options
"--max-tries", "--failures-detailed" and "--verbose-errors" are added.
Transactions with serialization errors or deadlock errors will be
repeated after rollbacks until they complete successfully or reach the
maximum number of tries (specified by the --max-tries option), or the
maximum time of tries (specified by the --latency-limit option).
These options can be specified at the same time. It is not possible to
use an unlimited number of tries (--max-tries=0) without the
--latency-limit option or the --time option. By default the option
--max-tries is set to 1, which means transactions with
serialization/deadlock errors are not retried. If the last try fails,
this transaction will be reported as failed, and the client variables
will be set as they were before the first run of this transaction.
Statistics on retries and failures are printed in the progress,
transaction / aggregation logs and in the end with other results (all
and for each script). Also retries and failures are printed
per-command with average latency by using option
(--report-per-command, -r).
Option --failures-detailed prints group failures by basic types
(serialization failures / deadlock failures).
Option --verbose-errors prints distinct reports on errors and failures
(errors without retrying) by type with detailed information like which
limit for retries was violated and how far it was exceeded for the
serialization/deadlock failures.
Patch originally written by Marina Polyakova then Yugo Nagata
inherited the discussion and heavily modified the patch to make it
commitable.
Authors: Yugo Nagata, Marina Polyakova
Reviewed-by: Fabien Coelho, Tatsuo Ishii, Alvaro Herrera, Kevin Grittner, Andres Freund, Arthur Zakirov, Alexander Korotkov, Teodor Sigaev, Ildus Kurbangaliev
Discussion: https://postgr.es/m/flat/72a0d590d6ba06f242d75c2e641820ec%40postgrespro.ru
When cross-building to windows, or building with mingw on windows, the build
could fail with
x86_64-w64-mingw32-gcc: error: win32ver.o: No such file or director
because pg_dumpall didn't depend on WIN32RES, but it's recipe references
it. The build nevertheless succeeded most of the time, due to
pg_dump/pg_restore having the required dependency, causing win32ver.o to be
built.
Reported-By: Thomas Munro <thomas.munro@gmail.com>
Discussion: https://postgr.es/m/CA+hUKGJeekpUPWW6yCVdf9=oBAcCp86RrBivo4Y4cwazAzGPng@mail.gmail.com
Backpatch: 10-, omission present on all live branches
This feature allows skipping the transaction on subscriber nodes.
If incoming change violates any constraint, logical replication stops
until it's resolved. Currently, users need to either manually resolve the
conflict by updating a subscriber-side database or by using function
pg_replication_origin_advance() to skip the conflicting transaction. This
commit introduces a simpler way to skip the conflicting transactions.
The user can specify LSN by ALTER SUBSCRIPTION ... SKIP (lsn = XXX),
which allows the apply worker to skip the transaction finished at
specified LSN. The apply worker skips all data modification changes within
the transaction.
Author: Masahiko Sawada
Reviewed-by: Takamichi Osumi, Hou Zhijie, Peter Eisentraut, Amit Kapila, Shi Yu, Vignesh C, Greg Nancarrow, Haiying Tang, Euler Taveira
Discussion: https://postgr.es/m/CAD21AoDeScrsHhLyEPYqN3sydg6PxAPVBboK=30xJfUVihNZDA@mail.gmail.com
For GENERATED columns, we record all dependencies of the generation
expression as AUTO dependencies of the column itself. This means
that the generated column is silently dropped if any dependency
is removed, even if CASCADE wasn't specified. This is at least
a POLA violation, but I think it's actually based on a misreading
of the standard. The standard does say that you can't drop a
dependent GENERATED column in RESTRICT mode; but that's buried down
in a subparagraph, on a different page from some pseudocode that
makes it look like an AUTO drop is being suggested.
Change this to be more like the way that we handle regular default
expressions, ie record the dependencies as NORMAL dependencies of
the pg_attrdef entry. Also, make the pg_attrdef entry's dependency
on the column itself be INTERNAL not AUTO. That has two effects:
* the column will go away, not just lose its default, if any
dependency of the expression is dropped with CASCADE. So we
don't need any special mechanism to make that happen.
* it provides an additional cross-check preventing someone from
dropping the default expression without dropping the column.
catversion bump because of change in the contents of pg_depend
(which also requires a change in one information_schema view).
Per bug #17439 from Kevin Humphreys. Although this is a longstanding
bug, it seems impractical to back-patch because of the need for
catalog contents changes.
Discussion: https://postgr.es/m/17439-7df4421197e928f0@postgresql.org
createdb() didn't check for collation attributes validity, which has
to be done explicitly on ICU < 54. It also forgot to close the ICU collator
opened during the check which leaks some memory.
To fix both, add a new check_icu_locale() that does all the appropriate
verification and close the ICU collator.
initdb also had some partial check for ICU < 54. To have consistent error
reporting across major ICU versions, and get rid of the need to include ucol.h,
remove the partial check there. The backend will report an error if needed
during the post-boostrap iniitialization phase.
Author: Julien Rouhaud <julien.rouhaud@free.fr>
Discussion: https://www.postgresql.org/message-id/20220319041459.qqqiqh335sga5ezj@jrouhaud
b048326 has added support for SET ACCESS METHOD in ALTER TABLE, but it
has missed a few things for materialized views:
- No documentation for this clause on the ALTER MATERIALIZED VIEW page.
- psql tab completion missing.
- No regression tests.
This commit closes the gap on all the points listed above.
Author: Yugo Nagata
Discussion: https://postgr.es/m/20220316133337.5dc9740abfa24c25ec9f67f5@sraoss.co.jp
Teach xlogreader.c to decode the WAL into a circular buffer. This will
support optimizations based on looking ahead, to follow in a later
commit.
* XLogReadRecord() works as before, decoding records one by one, and
allowing them to be examined via the traditional XLogRecGetXXX()
macros and certain traditional members like xlogreader->ReadRecPtr.
* An alternative new interface XLogReadAhead()/XLogNextRecord() is
added that returns pointers to DecodedXLogRecord objects so that it's
now possible to look ahead in the WAL stream while replaying.
* In order to be able to use the new interface effectively while
streaming data, support is added for the page_read() callback to
respond to a new nonblocking mode with XLREAD_WOULDBLOCK instead of
waiting for more data to arrive.
No direct user of the new interface is included in this commit, though
XLogReadRecord() uses it internally. Existing code doesn't need to
change, except in a few places where it was accessing reader internals
directly and now needs to go through accessor macros.
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>
Reviewed-by: Andres Freund <andres@anarazel.de> (earlier versions)
Discussion: https://postgr.es/m/CA+hUKGJ4VJN8ttxScUFM8dOKX0BrBiboo5uz1cq=AovOddfHpA@mail.gmail.com
lz4frame.h was getting declared after the headers specific to Postgres,
but it needs to be included between postgres_fe.h and the internal
headers.
Issue introduced by babbbb5.
Reported-by: Justin Prysby
Discussion: https://postgr.es/m/20220317111220.GI28503@telsasoft.com
This adds the option to use ICU as the default locale provider for
either the whole cluster or a database. New options for initdb,
createdb, and CREATE DATABASE are used to select this.
Since some (legacy) code still uses the libc locale facilities
directly, we still need to set the libc global locale settings even if
ICU is otherwise selected. So pg_database now has three
locale-related fields: the existing datcollate and datctype, which are
always set, and a new daticulocale, which is only set if ICU is
selected. A similar change is made in pg_collation for consistency,
but in that case, only the libc-related fields or the ICU-related
field is set, never both.
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/5e756dd6-0e91-d778-96fd-b1bcb06c161a%402ndquadrant.com
These tests were added recently, but older code tests USE_LZ4 rathr
than HAVE_LIBLZ4, so let's follow the established precedent. It
also seems more consistent with the intent of the configure tests,
since I think that the USE_* symbols are intended to correspond to
what the user requested, and the HAVE_* symbols to what configure
found while probing.
Discussion: http://postgr.es/m/CA+Tgmoap+hTD2-QNPJLH4tffeFE8MX5+xkbFKMU3FKBy=ZSNKA@mail.gmail.com
Logical replication apply workers for a subscription can easily get stuck
in an infinite loop of attempting to apply a change, triggering an error
(such as a constraint violation), exiting with the error written to the
subscription server log, and restarting.
To partially remedy the situation, this patch adds a new subscription
option named 'disable_on_error'. To be consistent with old behavior, this
option defaults to false. When true, both the tablesync worker and apply
worker catch any errors thrown and disable the subscription in order to
break the loop. The error is still also written in the logs.
Once the subscription is disabled, users can either manually resolve the
conflict/error or skip the conflicting transaction by using
pg_replication_origin_advance() function. After resolving the conflict,
users need to enable the subscription to allow apply process to proceed.
Author: Osumi Takamichi and Mark Dilger
Reviewed-by: Greg Nancarrow, Vignesh C, Amit Kapila, Wang wei, Tang Haiying, Peter Smith, Masahiko Sawada, Shi Yu
Discussion : https://postgr.es/m/DB35438F-9356-4841-89A0-412709EBD3AB%40enterprisedb.com
Fail with a suitable error message instead. We can't inject the backup
manifest into the output tarfile without decompressing it, and if
we did that, we'd have to recompress the tarfile afterwards to produce
the result the user is expecting. While we have enough infrastructure
in pg_basebackup now to accomplish that whole series of steps without
much additional code, it seems like excessively surprising behavior.
The user probably did not select server-side compression with the idea
that the client was going to end up decompressing it and then
recompressing.
Report from Justin Pryzby. Fix by me.
Discussion: http://postgr.es/m/CA+Tgmob6Rnjz-Qv32h3yJn8nnUkLhrtQDAS4y5AtsgtorAFHRA@mail.gmail.com
wal_compression gains a new value, "zstd", to allow the compression of
full-page images using the compression method of the same name.
Compression is done using the default level recommended by the library,
as of ZSTD_CLEVEL_DEFAULT = 3. Some benchmarking has shown that it
could make sense to use a level lower for the FPI compression, like 1 or
2, as the compression rate did not change much with a bit less CPU
consumed, but any tests done would only cover few scenarios so it is
hard to come to a clear conclusion. Anyway, there is no reason to not
use the default level instead, which is the level recommended by the
library so it should be fine for most cases.
zstd outclasses easily pglz, and is better than LZ4 where one wants to
have more compression at the cost of extra CPU but both are good enough
in their own scenarios, so the choice between one or the other of these
comes to a study of the workload patterns and the schema involved,
mainly.
This commit relies heavily on 4035cd5, that reshaped the code creating
and restoring full-page writes to be aware of the compression type,
making this integration straight-forward.
This patch borrows some early work from Andrey Borodin, though the patch
got a complete rewrite.
Author: Justin Pryzby
Discussion: https://postgr.es/m/20220222231948.GJ9008@telsasoft.com
Both client-side compression and server-side compression are now
supported for zstd. In addition, a backup compressed by the server
using zstd can now be decompressed by the client in order to
accommodate the use of -Fp.
Jeevan Ladhe, with some edits by me.
Discussion: http://postgr.es/m/CA+Tgmobyzfbz=gyze2_LL1ZumZunmaEKbHQxjrFkOR7APZGu-g@mail.gmail.com
Slow hosts may avoid load-induced, spurious failures by setting
environment variable PG_TEST_TIMEOUT_DEFAULT to some number of seconds
greater than 180. Developers may see faster failures by setting that
environment variable to some lesser number of seconds. In tests, write
$PostgreSQL::Test::Utils::timeout_default wherever the convention has
been to write 180. This change raises the default for some briefer
timeouts. Back-patch to v10 (all supported versions).
Discussion: https://postgr.es/m/20220218052842.GA3627003@rfd.leadboat.com
Commit 52e4f0cd47 didn't add tests for pg_dump support, so add a few tests
for it. Additionally, verify that catalogs are updated after few
ALTER PUBLICATION commands that modify row filters by using \d.
Reported-by: Tomas Vondra
Author: Shi yu, based on initial by Tomas Vondra
Reviewed-by: Euler Taveira and Amit Kapila
Discussion: https://postgr.es/m/6bdbd7fc-e81a-9a77-d963-24adeb95f29e@enterprisedb.com
The checks currently done at the startup of pg_upgrade on PGHOST and
PGHOSTADDR to avoid any attempts to access to an external cluster fail
setting those parameters to Windows paths or even temporary paths
prefixed by an '@', as it only considers as a valid path strings
beginning with a slash.
As mentioned by Andres, is_unixsock_path() is designed to detect such
cases, so, like any other code paths dealing with the same problem (psql
and libpq), use it rather than assuming that all valid paths are
prefixed with just a slash.
This issue has been found while testing the TAP tests of pg_upgrade
through the CI on Windows. This is a bug, but nobody has complained
about it since pg_upgrade exists so no backpatch is done, at least for
now.
Analyzed-by: Andres Freund, Michael Paquier
Discussion: https://postgr.es/m/YeYj4DU5qY/rtKXT@paquier.xyz
pg_rewind generates and executes internally up to two commands to work
on the target cluster, depending on the options given by its caller:
- postgres -C to retrieve the value of restore_command, when using
-c/--restore-target-wal.
- postgres --single to enforce recovery once and get the target cluster
in a clean shutdown state.
Both commands have been applying incorrect quoting rules, which could
lead to failures when for example using a target data directory with
unexpected characters like CRLFs. Those commands are now generated with
PQExpBuffer, making use of string_utils.h to quote those commands as
they should. We may extend those commands in the future with more
options, so this makes any upcoming additions easier.
This is arguably a bug fix, but nobody has complained about the existing
code being a problem either, so no backpatch is done.
Extracted from a larger patch by the same author.
Author: Gunnar "Nick" Bluth
Discussion: https://postgr.es/m/7c59265d-ac50-b0aa-ca1e-65e8bd27642a@pro-open.de
When opening a WAL file smaller than XLOG_BLCKSZ (e.g. 0 bytes long) while
determining the wal_segment_size, pg_waldump checked errno, despite errno not
being set by the short read. Resulting in a bogus error message.
Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20220214.181847.775024684568733277.horikyota.ntt@gmail.com
Backpatch: 11-, the bug was introducedin fc49e24fa
If the log streaming child process (thread on Windows) dies during
backup then the whole backup will be aborted at the end of the
backup. Instead, trap ungraceful termination of the log streaming
child and exit early. This also adds a TAP test for simulating this
by terminating the responsible backend.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Reviewed-by: Magnus Hagander <magnus@hagander.net>
Discussion: https://postgr.es/m/0F69E282-97F9-4DB7-8D6D-F927AA6340C8@yesql.se
Discussion: https://postgr.es/m/VI1PR83MB0189818B82C19059CB62E26199A89@VI1PR83MB0189.EURPRD83.prod.outlook.com
Commit 61081e75c introduced pg_rewind along with the test suite, which
ensured that subroutines didn't incur more than one test to plan. Now
that we no longer explicitly plan tests (since 549ec201d), we can use
the usual Test::More functions.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/AA527525-F0CC-4AA2-AF98-543CABFDAF59@yesql.se
I have not been able to reproduce the occasional failures of
019_replslot_limit.pl we are seeing in the buildfarm and not for lack of
trying. The additional logging and increased log level will hopefully help.
Will be reverted once the cause is identified.
Discussion: https://postgr.es/m/20220218231415.c4plkp4i3reqcwip@alap3.anarazel.de
This feature adds row filtering for publication tables. When a publication
is defined or modified, an optional WHERE clause can be specified. Rows
that don't satisfy this WHERE clause will be filtered out. This allows a
set of tables to be partially replicated. The row filter is per table. A
new row filter can be added simply by specifying a WHERE clause after the
table name. The WHERE clause must be enclosed by parentheses.
The row filter WHERE clause for a table added to a publication that
publishes UPDATE and/or DELETE operations must contain only columns that
are covered by REPLICA IDENTITY. The row filter WHERE clause for a table
added to a publication that publishes INSERT can use any column. If the
row filter evaluates to NULL, it is regarded as "false". The WHERE clause
only allows simple expressions that don't have user-defined functions,
user-defined operators, user-defined types, user-defined collations,
non-immutable built-in functions, or references to system columns. These
restrictions could be addressed in the future.
If you choose to do the initial table synchronization, only data that
satisfies the row filters is copied to the subscriber. If the subscription
has several publications in which a table has been published with
different WHERE clauses, rows that satisfy ANY of the expressions will be
copied. If a subscriber is a pre-15 version, the initial table
synchronization won't use row filters even if they are defined in the
publisher.
The row filters are applied before publishing the changes. If the
subscription has several publications in which the same table has been
published with different filters (for the same publish operation), those
expressions get OR'ed together so that rows satisfying any of the
expressions will be replicated.
This means all the other filters become redundant if (a) one of the
publications have no filter at all, (b) one of the publications was
created using FOR ALL TABLES, (c) one of the publications was created
using FOR ALL TABLES IN SCHEMA and the table belongs to that same schema.
If your publication contains a partitioned table, the publication
parameter publish_via_partition_root determines if it uses the partition's
row filter (if the parameter is false, the default) or the root
partitioned table's row filter.
Psql commands \dRp+ and \d <table-name> will display any row filters.
Author: Hou Zhijie, Euler Taveira, Peter Smith, Ajin Cherian
Reviewed-by: Greg Nancarrow, Haiying Tang, Amit Kapila, Tomas Vondra, Dilip Kumar, Vignesh C, Alvaro Herrera, Andres Freund, Wei Wang
Discussion: https://www.postgresql.org/message-id/flat/CAHE3wggb715X%2BmK_DitLXF25B%3DjE6xyNCH4YOwM860JR7HarGQ%40mail.gmail.com
Until this change pg_upgrade with output redirected to a file / pipe would end
up printing all files in the cluster. This has made check-world output
exceedingly verbose.
Author: Andres Freund <andres@anarazel.de>
Reviewed-By: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-By: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/CA+hUKGKjrV61ZVJ8OSag+3rKRmCZXPc03bDyWMqhXg3rdZ=fOw@mail.gmail.com
Following migration of Windows buildfarm members running TAP tests to
use of ucrt64 perl for those tests, special processing for msys perl is
no longer necessary and so is removed.
Backpatch to release 10
Discussion: https://postgr.es/m/c65a8781-77ac-ea95-d185-6db291e1baeb@dunslane.net
Ill-considered refactoring in 23a1c6578 led to progress_filename
sometimes pointing to data that had gone out of scope. The most
bulletproof fix is to hang onto a copy of whatever's passed in.
Compared to the work spent elsewhere per file, that's not very
expensive, plus we can skip it except in verbose logging mode.
Per buildfarm.
Discussion: https://postgr.es/m/20220212211316.GK31460@telsasoft.com
38bfae3 has mixed the "dump/" and "log/" subdirectories generated in
"pg_upgrade_output.d/", causing the internal dump files to be generated
in "log/" and the log files to be in "dump/", but the opposite should be
done. This was not directly an issue for pg_upgrade runs, as the
internal dump files were still picked up at the location of their
creation, but the newest version of the buildfarm client would have
reported the dump files instead of the log files on failures of
pg_upgrade.
Issue spotted while testing the TAP tests of pg_upgrade.
Move scanint8() to numutils.c and rename to pg_strtoint64(). We
already have a "16" and "32" version of that, and the code inside the
functions was aligned, so this move makes all three versions
consistent. The API is also changed to no longer provide the errorOK
case. Users that need the error checking can use strtoi64().
Reviewed-by: John Naylor <john.naylor@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/b239564c-cad0-b23e-c57e-166d883cb97d@enterprisedb.com
This adds to database objects the same version tracking that collation
objects have. There is a new pg_database column datcollversion that
stores the version, a new function
pg_database_collation_actual_version() to get the version from the
operating system, and a new subcommand ALTER DATABASE ... REFRESH
COLLATION VERSION.
This was not originally added together with pg_collation.collversion,
since originally version tracking was only supported for ICU, and ICU
on a database-level is not currently supported. But we now have
version tracking for glibc (since PG13), FreeBSD (since PG14), and
Windows (since PG13), so this is useful to have now.
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/f0ff3190-29a3-5b39-a179-fa32eee57db6%40enterprisedb.com
Some environments may compile with --with-lz4 while the command "lz4"
goes missing, causing two failures in the TAP tests of pg_verifybackup
(008_untar.pl and 010_client_untar.pl) as the code assumed that the
command always existed with a hardcoded value in src/Makefile.global.
Rather than this method, this adds a ./configure check based on
PGAC_PATH_PROGS() to find automatically the command and get an absolute
path to it.
Both tests need to be adjusted for the case where the command does not
exist, actually, as Makefile.global would set now LZ4 to an empty value
in this case. The TAP tests of pg_receivewal already do that.
Per report from buildfarm member copperhead, as an effect of dab2984.
The origin of the failure is actually babbbb5 that did not centralize
the check for the existence of a "lz4" command at ./configure to shave a
few cycles. Note that one just needs to tweak an environment to move
"lz4" out of the way to reproduce the problem, which is what I did to
test this change.
Per discussion with Robert Haas, Tom Lane, Andres Freund and myself.
Discussion: https://postgr.es/m/Ygc51WVAFGocSu4h@paquier.xyz
Depending on compiler version and optimization level, we might
get a complaint that lazy_scan_heap's "freespace" is used
uninitialized.
Compilers not aware that ereport(ERROR) doesn't return complained
about bbsink_lz4_new().
Assigning "-1" to a uint64 value has unportable results; fortunately,
the value of xlogreadsegno is unimportant when xlogreadfd is -1.
(It looks to me like there is no need for xlogreadsegno to be static
in the first place, but I didn't venture to change that.)
Rather than doing manual book keeping to plan the number of tests to run
in each TAP suite, conclude each run with done_testing() summing up the
the number of tests that ran. This removes the need for maintaning and
updating the plan count at the expense of an accurate count of remaining
during the test suite runtime.
This patch has been discussed a number of times, often in the context of
other patches which updates tests, so a larger number of discussions can
be found in the archives.
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/DD399313-3D56-4666-8079-88949DAC870F@yesql.se
LZ4 compression can now be performed on the client using
pg_basebackup -Ft --compress client-lz4, and LZ4 decompression of
a backup compressed on the server can be performed on the client
using pg_basebackup -Fp --compress server-lz4.
Dipesh Pandit, reviewed and tested by Jeevan Ladhe and Tushar Ahuja,
with a few corrections - and some documentation - by me.
Discussion: http://postgr.es/m/CAN1g5_FeDmiA9D8wdG2W6Lkq5CpubxOAqTmd2et9hsinTJtsMQ@mail.gmail.com
LZ4 compression can be a lot faster than gzip compression, so users
may prefer it even if the compression ratio is not as good. We will
want pg_basebackup to support LZ4 compression and decompression on the
client side as well, and there is a pending patch for that, but it's
by a different author, so I am committing this part separately for
that reason.
Jeevan Ladhe, reviewed by Tushar Ahuja and by me.
Discussion: http://postgr.es/m/CANm22Cg9cArXEaYgHVZhCnzPLfqXCZLAzjwTq7Fc0quXRPfbxA@mail.gmail.com
"pg_ctl stop/restart" checked that the postmaster PID is valid just
once, as a side-effect of sending the stop signal, and then would
wait-till-timeout for the postmaster.pid file to go away. This
neglects the case wherein the postmaster dies uncleanly after we
signal it. Similarly, once "pg_ctl promote" has sent the signal,
it'd wait for the corresponding on-disk state change to occur
even if the postmaster dies.
I'm not sure how we've managed not to notice this problem, but it
seems to explain slow execution of the 017_shm.pl test script on AIX
since commit 4fdbf9af5, which added a speculative "pg_ctl stop" with
the idea of making real sure that the postmaster isn't there. In the
test steps that kill-9 and then restart the postmaster, it's possible
to get past the initial signal attempt before kill() stops working
for the doomed postmaster. If that happens, pg_ctl waited till
PGCTLTIMEOUT before giving up ... and the buildfarm's AIX members
have that set very high.
To fix, include a "kill(pid, 0)" test (similar to what
postmaster_is_alive uses) in these wait loops, so that we'll
give up immediately if the postmaster PID disappears.
While here, I chose to refactor those loops out of where they were.
do_stop() and do_restart() can perfectly well share one copy of the
wait-for-stop loop, and it seems desirable to put a similar function
beside that for wait-for-promote.
Back-patch to all supported versions, since pg_ctl's wait logic
is substantially identical in all, and we're seeing the slow test
behavior in all branches.
Discussion: https://postgr.es/m/20220210023537.GA3222837@rfd.leadboat.com
The behavior I proposed, of matching case only when only keywords
are available to complete, turns out to be too cute. It adds about
as many problems as it removes. Simplify down to ilmari's original
proposal of just always matching case when completing a keyword.
Also, I noticed while testing this that we've pessimized the behavior
for qualified GUC names: the code is insisting that they be
double-quoted, which was not the case before. Fix that by treating
GUC names as verbatim matches instead of possibly-schema-qualified
names. (While it's tempting to try to split qualified GUC names
so that we *could* treat them with the schema-qualified-name code
path, that really isn't going to work in light of guc.c's willingness
to allow more than two name components.)
Dagfinn Ilmari Mannsåker and Tom Lane
Discussion: https://postgr.es/m/445692.1644018081@sss.pgh.pa.us
ReadStr returns allocated memory which the caller is responsible for
freeing when done with the string. This commit ensures that memory is
freed in one case which used ReadStr in a conditional. While the leak
might not be too concerning, this makes the code consistent across all
ReadStr callsites in ReadToc. Due to the lack of complaints of issues
in production from this, no backpatch is performed at this point.
Author: Bharath Rupireddy, Georgios Kokolatos
Reviewed-by: Kyotaro Horiguchi
Discussion: https://postgr.es/m/oZwKiUxFsVaetG2xOJp7Hwao8F1AKIdfFDQLNJrnwoaxmjyB-45r_aYmhgXHKLcMI3GT24m9L6HafSi2ns7WFxXe0mw2_tIJpD-Z3vb_eyI=@pm.me
Most calls of rmtree() report an error, and the code coming from 38bfae3
has introduced one caller where this is not done. The previous behavior
was to not fail hard if any log file generated is not properly unlinked
when cleaning up the contents generated once the upgrade has completed,
so add a cast to (void) to indicate the intention behind this new code.
Per gripe from Coverity.
Historically, the location of any files generated by pg_upgrade, as of
the per-database logs and internal dumps, has been the current working
directory, leaving all those files behind when using --retain or on a
failure.
Putting all those contents in a targeted subdirectory makes the whole
easier to debug, and simplifies the code in charge of cleaning up the
logs. Note that another reason is that this facilitates the move of
pg_upgrade to TAP with a fixed location for all the logs to grab if the
test fails repeatedly.
Initially, we thought about being able to specify the output directory
with a new option, but we have settled on using a subdirectory located
at the root of the new cluster's data folder, "pg_upgrade_output.d",
instead, as at the end the new data directory is the location of all the
data generated by pg_upgrade. There is a take with group permissions
here though: if the new data folder has been initialized with this
option, we need to create all the files and paths with the correct
permissions or a base backup taken after a pg_upgrade --retain would
fail, meaning that GetDataDirectoryCreatePerm() has to be called before
creating the log paths, before a couple of sanity checks on the clusters
and before getting the socket directory for the cluster's host settings.
The idea of the new location is based on a suggestion from Peter
Eisentraut.
Also thanks to Andrew Dunstan, Peter Eisentraut, Daniel Gustafsson, Tom
Lane and Bruce Momjian for the discussion (in alphabetical order).
Author: Justin Pryzby
Discussion: https://postgr.es/m/20211212025017.GN17618@telsasoft.com
Commit 8e2b6d45a0 added a new unprivileged user for testing
pg_basebackup, but omitted to add them to the cluster's authorized
logins, breaking Windows tests run without using Unix sockets.
The SQL standard has been ambiguous about whether null values in
unique constraints should be considered equal or not. Different
implementations have different behaviors. In the SQL:202x draft, this
has been formalized by making this implementation-defined and adding
an option on unique constraint definitions UNIQUE [ NULLS [NOT]
DISTINCT ] to choose a behavior explicitly.
This patch adds this option to PostgreSQL. The default behavior
remains UNIQUE NULLS DISTINCT. Making this happen in the btree code
is pretty easy; most of the patch is just to carry the flag around to
all the places that need it.
The CREATE UNIQUE INDEX syntax extension is not from the standard,
it's my own invention.
I named all the internal flags, catalog columns, etc. in the negative
("nulls not distinct") so that the default PostgreSQL behavior is the
default if the flag is false.
Reviewed-by: Maxim Orlov <orlovmg@gmail.com>
Reviewed-by: Pavel Borisov <pashkin.elfe@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/84e5ee1b-387e-9a54-c326-9082674bde78@enterprisedb.com
The comment for PGAC_READLINE_VARIABLES says "Readline versions < 2.1
don't have rl_completion_append_character". It seems certain that such
versions are extinct in the wild, though; for sure there are none in the
buildfarm. Libedit has had this variable for at least twenty years too.
Also, tab-complete.c's behavior without it is quite unfriendly, since
we'll emit a space even when completion fails; but we've had no
complaints about that.
Therefore, let's assume this variable is always there, and drop the
configure check to save a few build cycles.
Discussion: https://postgr.es/m/147685.1643858911@sss.pgh.pa.us
Fix up recently-added test cases in 010_tab_completion.pl
so that they pass with the rather seriously broken libedit
found in Debian 10 (Buster).
Also, add a few more test cases to improve code coverage.
The total line coverage still looks pretty awful, because
we exercise only a few paths of the giant if-else chain in
psql_completion(). However, this now covers almost all of
the code that isn't in one of those if-blocks.
Discussion: https://postgr.es/m/960764.1643751011@sss.pgh.pa.us
When this code executed as superuser it appeared to work because no
system catalog lookups happened, but otherwise it crashes because there
is no transaction environment. Fix that.
Report and code change by me. Test case by Dagfinn Ilmari Mannsåker.
Discussion: http://postgr.es/m/CA+TgmobiKLXne-2AVzYyWRiO8=rChBQ=7ywoxp=2SmcFw=oDDw@mail.gmail.com
When completing keywords that are offered alongside names obtained
from a query, preserve the user's choice of keyword case. This
would have been messy to do before 02b8048ba, but now it's fairly
simple. A complication is that we want keywords to be shown in
upper case in any tab-completion menus that include both keywords
and non-keywords, so we can't switch their case until enough has
been typed that only keyword(s) remain to be chosen.
Also, adjust some places where 02b8048ba thoughtlessly held over
a previous choice to display keywords in lower case. (I think
I got confused as to whether those words were keywords or variable
names, but they're the former.)
Dagfinn Ilmari Mannsåker and Tom Lane
Discussion: https://postgr.es/m/8735l41ynm.fsf@wibble.ilmari.org
This patch improves tab completion's ability to deal with
valid variant spellings of SQL identifiers. Notably:
* Unquoted upper-case identifiers are now downcased as the backend
would do, allowing them to be completed correctly.
* Tab completion can now match identifiers that are quoted even
though they don't need to be; for example "f<TAB> now completes
to "foo" if that's the only available name. Previously, only
names that require quotes would be offered.
* Schema-qualified identifiers are now supported where SQL syntax
allows it; many lesser-used completion rules neglected this.
* Completion operations that refer back to some previously-typed
name (for example, to complete names of columns belonging to a
previously-mentioned table) now allow variant spellings of the
previous name too.
In addition, performance of tab completion queries has been
improved for databases containing many objects, although
you'd only be likely to notice with a heavily-loaded server.
Authors of future tab-completion patches should note that this
commit changes many details about how tab completion queries
must be written:
* Tab completion queries now deal in raw object names; do not
use quote_ident().
* The name-matching restriction in a query must now be written
as "outputcol LIKE '%s'", not "substring(outputcol,1,%d)='%s'".
* The SchemaQuery mechanism has been extended so that it can
handle queries that refer back to a previous name. Most completion
queries that do that should be converted to SchemaQuery form.
Only consider using a literal query if the previous name can
never be schema-qualified. Don't use a literal query if the
name-to-be-completed can validly be schema-qualified, either.
* Use set_completion_reference() to specify which word is the previous
name to consider, for either a SchemaQuery or a literal query.
* If you want to offer some keywords in addition to a query result
(for example, offer COLUMN in addition to column names after
"ALTER TABLE t RENAME"), do not use the old hack of tacking the
keywords on with UNION. Instead use the new QUERY_PLUS macros
to write such keywords separately from the query proper. The
"addon" macro arguments that used to be used for this purpose
are gone.
* If your query returns something that's not a SQL identifier
(such as an attribute number or enum label), use the new
QUERY_VERBATIM macros to prevent the result from incorrectly
getting double-quoted. You may still need to use quote_literal
in such a query, too.
Tom Lane and Haiying Tang
Discussion: https://postgr.es/m/a63cbd45e3884cf9b3961c2a6a95dcb7@G08CNEXMBPEKD05.g08.fujitsu.local
Tushar Ahuja discovered that if you use both --compress and --gzip,
or --compress multiple times, the last instance of one of these
options doesn't in all cases overwrite the compression level set by
an earlier option. That's not a serious bug, but it also has nothing
to recommend it. Repair.
Discussion: http://postgr.es/m/CA+TgmoZfP=rsZB_9vDGfhuNgSu_M_09UWu8SjvsP65y_1pQFCg@mail.gmail.com
I intended to include a change to the "skip" count in the test
case, but it didn't get folded into the commit. Do that now,
so that non-zlib builds don't break.
The new file bbstreamer_gzip.c needs <unistd.h> to avoid
complaints about dup() not having a prototype, as per buildfarm
returns.
If you have a low-bandwidth connection between the client and the
server, it's reasonable to want to compress on the server side but
then decompress and extract the backup on the client side. This
commit allows you do to do just that.
Dipesh Pandit, with minor and mostly cosmetic changes by me.
Discussion: http://postgr.es/m/CAN1g5_HiSh8ajUMd4ePtGyCXo89iKZTzaNyzP_qv1eJbi4YHXA@mail.gmail.com
The server expects the compression level to be between 1 and 9, but
Z_DEFAULT_COMPRESSION is -1, so we must not try to send that value
to the server.
Because pg_basebackup's -R option is implemented on the client side,
it can't be used in combination with a backup target. Error out if
someone tries that, instead of silently ignoring the option.
Both issues were reported by Tushar Ahuja; patch by me.
Discussion: http://postgr.es/m/CA+TgmoaMwgdx8HxBjF8hmbohVvPL_0H5LqNrSq0uU+7BKp_Q2A@mail.gmail.com
Robert Haas
Peter Eisentraut
David Rowley
Michael Paquier
Thomas Munro
Andrew Dunstan
Tom Lane
Amit Kapila
Andres Freund
John Naylor
Tatsuo Ishii
Noah Misch
Alvaro Herrera
Jeff Davis
Tomas Vondra
Stephen Frost
Daniel Gustafsson