Peter Eisentraut [Thu, 6 Jun 2019 12:14:29 +0000 (14:14 +0200)]
Unwind some workarounds for lack of portable int64 format specifier
Because there is no portable int64/uint64 format specifier and we
can't stick macros like INT64_FORMAT into the middle of a translatable
string, we have been using various workarounds that put the number to
be printed into a string buffer first. Now that we always use our own
sprintf(), we can rely on %lld and %llu to work, so we can use those.
This patch undoes this workaround in a few places where it was
egregiously verbose.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/CAH2-Wz%3DWbNxc5ob5NJ9yqo2RMJ0q4HXDS30GVCobeCvC9A1L9A%40mail.gmail.com
Peter Eisentraut [Thu, 4 Jul 2019 11:10:41 +0000 (13:10 +0200)]
Sync our Snowball stemmer dictionaries with current upstream
The main change is a new stemmer for Greek. There are minor changes
in the Danish and French stemmers.
Author: Panagiotis Mavrogiorgos <pmav99@gmail.com>
Peter Eisentraut [Thu, 4 Jul 2019 10:31:08 +0000 (12:31 +0200)]
Clean up whitespace a bit
Michael Paquier [Thu, 4 Jul 2019 07:08:09 +0000 (16:08 +0900)]
Introduce safer encoding and decoding routines for base64.c
This is a follow-up refactoring after
09ec55b and
b674211, which has
proved that the encoding and decoding routines used by SCRAM have a
poor interface when it comes to check after buffer overflows. This adds
an extra argument in the shape of the length of the result buffer for
each routine, which is used for overflow checks when encoding or
decoding an input string. The original idea comes from Tom Lane.
As a result of that, the encoding routine can now fail, so all its
callers are adjusted to generate proper error messages in case of
problems.
On failure, the result buffer gets zeroed.
Author: Michael Paquier
Reviewed-by: Daniel Gustafsson
Discussion: https://postgr.es/m/
20190623132535.GB1628@paquier.xyz
Michael Paquier [Thu, 4 Jul 2019 02:33:42 +0000 (11:33 +0900)]
Simplify TAP tests of pg_dump for connection strings
The last set of scenarios did an initialization of nodes followed by an
extra command to set up the authentication policy with pg_regress
--config-auth. This configuration step can be integrated directly using
the option auth_extra from PostgresNode::init when initializing the
node, saving from one extra command. On Windows, this also restricts
more pg_ident.conf for the SSPI user mapping by removing the entry of
the OS user running the test, which is not needed anyway.
Note that IPC::Run mishandles double quotes, hence the restore user name
is changed to map with that. This was already done in the test as a
later step, but not in a consistent way, causing the switch to use
auth_extra to fail.
Found while reviewing
ca129e5.
Discussion: https://postgr.es/m/
20190703062024.GD3084@paquier.xyz
David Rowley [Thu, 4 Jul 2019 01:01:13 +0000 (13:01 +1200)]
Use appendStringInfoString and appendPQExpBufferStr where possible
This changes various places where appendPQExpBuffer was used in places
where it was possible to use appendPQExpBufferStr, and likewise for
appendStringInfo and appendStringInfoString. This is really just a
stylistic improvement, but there are also small performance gains to be
had from doing this.
Discussion: http://postgr.es/m/CAKJS1f9P=M-3ULmPvr8iCno8yvfDViHibJjpriHU8+SXUgeZ=w@mail.gmail.com
Tom Lane [Wed, 3 Jul 2019 22:08:53 +0000 (18:08 -0400)]
Ensure plpgsql result tuples have the right composite type marking.
A function that is declared to return a named composite type must
return tuple datums that are physically marked as having that type.
The plpgsql code path that allowed directly returning an expanded-record
datum forgot to check that, so that an expanded record marked as type
RECORDOID could be returned if it had a physically-compatible tupdesc.
This'd be harmless, I think, if the record value never escaped the
current session --- but it's possible for it to get stored into a table,
and then subsequent sessions can't interpret the anonymous record type.
Fix by flattening the record into a tuple datum and overwriting its
type/typmod fields, if its declared type doesn't match the function's
declared type. (In principle it might be possible to just change the
expanded record's stored type ID info, but there are enough tricky
consequences that I didn't want to mess with that, especially not in
a back-patched bug fix.)
Per bug report from Steve Rogerson. Back-patch to v11 where the bug
was introduced.
Discussion: https://postgr.es/m/
cbaecae6-7b87-584e-45f6-
4d047b92ca2a@yewtc.demon.co.uk
Tom Lane [Wed, 3 Jul 2019 16:18:10 +0000 (12:18 -0400)]
Doc: document table persistence display in \dt+.
Forgotten in commit
9a2ea6183.
Tom Lane [Wed, 3 Jul 2019 15:46:34 +0000 (11:46 -0400)]
Show table persistence in psql's \dt+ and related commands.
In verbose mode, listTables() now emits a "Persistence" column
showing whether the table/index/view/etc is permanent, temporary,
or unlogged.
David Fetter, reviewed by Fabien Coelho and Rafia Sabih
Discussion: https://postgr.es/m/
20190423005642.GZ28936@fetter.org
David Rowley [Wed, 3 Jul 2019 11:44:54 +0000 (23:44 +1200)]
Don't remove surplus columns from GROUP BY for inheritance parents
d4c3a156c added code to remove columns that were not part of a table's
PRIMARY KEY constraint from the GROUP BY clause when all the primary key
columns were present in the group by. This is fine to do since we know
that there will only be one row per group coming from this relation.
However, the logic failed to consider inheritance parent relations. These
can have child relations without a primary key, but even if they did, they
could duplicate one of the parent's rows or one from another child
relation. In this case, those additional GROUP BY columns are required.
Fix this by disabling the optimization for inheritance parent tables.
In v11 and beyond, partitioned tables are fine since partitions cannot
overlap and before v11 partitioned tables could not have a primary key.
Reported-by: Manuel Rigger
Discussion: http://postgr.es/m/CA+u7OA7VLKf_vEr6kLF3MnWSA9LToJYncgpNX2tQ-oWzYCBQAw@mail.gmail.com
Backpatch-through: 9.6
Etsuro Fujita [Wed, 3 Jul 2019 08:51:00 +0000 (17:51 +0900)]
postgres_fdw: Remove redundancy in postgresAcquireSampleRowsFunc().
Previously, in the loop in postgresAcquireSampleRowsFunc() to iterate
fetching rows from a given remote table, we redundantly 1) determined the
fetch size by parsing the table's server/table-level options and then 2)
constructed the fetch command; remove that redundancy.
Author: Etsuro Fujita
Reviewed-by: Julien Rouhaud
Discussion: https://postgr.es/m/CAPmGK17_urk9qkLV65_iYMFw64z5qhdfhY=tMVV6Jg4KNYx8+w@mail.gmail.com
Michael Meskes [Tue, 2 Jul 2019 01:51:13 +0000 (03:51 +0200)]
Fix small memory leak in ecpglib ecpg_update_declare_statement() is called the
second time.
Author: "Zhang, Jie" <zhangjie2@cn.fujitsu.com>
Michael Meskes [Tue, 2 Jul 2019 01:42:09 +0000 (03:42 +0200)]
Use strtoint() instead of strtol() in pgtypeslib where the result is stored in
an int variable.
Author: Yang Xiao <YangX92@hotmail.com>
Michael Meskes [Tue, 2 Jul 2019 01:34:58 +0000 (03:34 +0200)]
Made ecpg compatibility mode and run-time behaviour options case insensitive.
Peter Eisentraut [Tue, 2 Jul 2019 22:44:30 +0000 (23:44 +0100)]
Fix accidentally swapped error message arguments
Author: Alexey Kondratov <a.kondratov@postgrespro.ru>
Peter Eisentraut [Tue, 2 Jul 2019 22:18:43 +0000 (23:18 +0100)]
Remove redundant newlines from error messages
These are no longer needed/allowed with the new logging API.
Tom Lane [Tue, 2 Jul 2019 18:04:42 +0000 (14:04 -0400)]
Don't treat complete_from_const as equivalent to complete_from_list.
Commit
4f3b38fe2 supposed that complete_from_const() is equivalent to
the one-element-list case of complete_from_list(), but that's not
really true at all. complete_from_const() supposes that the completion
is certain enough to justify wiping out whatever the user typed, while
complete_from_list() will only provide completions that match the
word-so-far.
In practice, given the lame parsing technology used by tab-complete.c,
it's fairly hard to believe that we're *ever* certain enough about
a completion to justify auto-correcting user input that doesn't match.
Hence, remove the inappropriate unification of the two cases.
As things now stand, complete_from_const() is used only for the
situation where we have no matches and we need to keep readline
from applying its default complete-with-file-names behavior.
This (mis?) behavior actually exists much further back, but
I'm hesitant to change it in released branches. It's not too
late for v12, though, especially seeing that the aforesaid
commit is new in v12.
Per gripe from Ken Tanzer.
Discussion: https://postgr.es/m/CAD3a31XpXzrZA9TT3BqLSHghdTK+=cXjNCE+oL2Zn4+oWoc=qA@mail.gmail.com
Tom Lane [Tue, 2 Jul 2019 17:35:14 +0000 (13:35 -0400)]
Fix tab completion of "SET variable TO|=" to not offer bogus completions.
Don't think that the context "UPDATE tab SET var =" is a GUC-setting
command.
If we have "SET var =" but the "var" is not a known GUC variable,
don't offer any completions. The most likely explanation is that
we've misparsed the context and it's not really a GUC-setting command.
Per gripe from Ken Tanzer. Back-patch to 9.6. The issue exists
further back, but before 9.6 the code looks very different and it
doesn't actually know whether the "var" name matches anything,
so I desisted from trying to fix it.
Discussion: https://postgr.es/m/CAD3a31XpXzrZA9TT3BqLSHghdTK+=cXjNCE+oL2Zn4+oWoc=qA@mail.gmail.com
Tom Lane [Tue, 2 Jul 2019 16:32:49 +0000 (12:32 -0400)]
Simplify psql \d's rule for ordering the indexes of a table.
The previous rule was "primary key (if any) first, then other unique
indexes in name order, then all other indexes in name order".
But the preference for unique indexes seems a bit obsolete since the
introduction of exclusion constraints. It's no longer the case
that unique indexes are the only ones that constrain what data can
be in the table, and it's hard to see what other rationale there is
for separating out unique indexes. Other new features like the
possibility for some indexes to be INVALID (hence, not constraining
anything) make this even shakier.
Hence, simplify the sort order to be "primary key (if any) first,
then all other indexes in name order".
No documentation change, since this was never documented anyway.
A couple of existing regression test cases change output, though.
Discussion: https://postgr.es/m/14422.
1561474929@sss.pgh.pa.us
Peter Geoghegan [Tue, 2 Jul 2019 05:28:08 +0000 (22:28 -0700)]
Remove obsolete nbtree "get root" comment.
Remove a very old Berkeley era comment that doesn't seem to have
anything to do with the current locking considerations within
_bt_getroot().
Discussion: https://postgr.es/m/CAH2-WzmA2H+rL-xxF5o6QhMD+9x6cJTnz2Mr3Li_pbPBmqoTBQ@mail.gmail.com
Michael Paquier [Tue, 2 Jul 2019 05:02:33 +0000 (14:02 +0900)]
Add support for Visual Studio 2019 in build scripts
This fixes at the same time a set of inconsistencies in the
documentation and the scripts related to the versions of Windows SDK
supported.
Author: Haribabu Kommi
Reviewed-by: Andrew Dunstan, Juan José Santamaría Flecha, Michael
Paquier
Discussion: https://postgr.es/m/CAJrrPGcfqXhfPyMrny9apoDU7M1t59dzVAvoJ9AeAh5BJi+UzA@mail.gmail.com
Michael Paquier [Tue, 2 Jul 2019 02:36:53 +0000 (11:36 +0900)]
Refactor code of reindexdb for query generation
This merges the portion related to REINDEX SYSTEM into the routine
already available for all the other reindex types, making the query
generation cleaner. While on it, change the handling of the reindex
types using an enum, which allows to get rid of the hardcoded strings
used directly in the query generation present for the same purpose (aka
"TABLE", "DATABASE", etc.).
Per discussion with Julien Rouhaud, Tom Lane, Alvaro Herrera and me.
Author: Julien Rouhaud
Discussion: https://postgr.es/m/CAOBaU_bSmSik_WRK9niDnm-3NkNZky6+uKxkmQwvthZvMWpS5A@mail.gmail.com
Peter Eisentraut [Mon, 1 Jul 2019 22:46:24 +0000 (23:46 +0100)]
Remove support for non-ELF BSD systems
This is long obsolete.
Discussion: https://www.postgresql.org/message-id/
8eacdc0d-123f-dbca-bacf-
0a68766a4889@2ndquadrant.com
Tom Lane [Mon, 1 Jul 2019 16:50:55 +0000 (12:50 -0400)]
Stamp HEAD as 13devel.
Let the hacking begin ...
Tom Lane [Mon, 1 Jul 2019 16:37:52 +0000 (12:37 -0400)]
pgindent run prior to branching v12.
pgperltidy and reformat-dat-files too, though the latter didn't
find anything to change.
Tom Lane [Mon, 1 Jul 2019 16:09:06 +0000 (12:09 -0400)]
Doc: remove obsolete description of oid column as being "hidden".
Looks like one copy of this text didn't get updated.
Justin Pryzby
Discussion: https://postgr.es/m/
20190701155932.GA22866@telsasoft.com
David Rowley [Mon, 1 Jul 2019 15:44:56 +0000 (03:44 +1200)]
Revert fix missing call to table_finish_bulk_insert during COPY
This reverts commits
4de60244e and
b2d69806d. Further thought is
required to make this work properly.
David Rowley [Mon, 1 Jul 2019 15:07:15 +0000 (03:07 +1200)]
Remove surplus call to table_finish_bulk_insert
4de60244e added the call to table_finish_bulk_insert to the
CopyMultiInsertBufferCleanup function. We use a CopyMultiInsertBuffer even
for non-partitioned tables, so having the cleanup do that meant we would
call table_finsh_bulk_insert twice when performing COPY FROM with
a non-partitioned table.
Here we can just remove the direct call in CopyFrom and let
CopyMultiInsertBufferCleanup handle the call instead.
David Rowley [Mon, 1 Jul 2019 13:23:26 +0000 (01:23 +1200)]
Fix missing call to table_finish_bulk_insert during COPY
86b85044e abstracted calls to heap functions in COPY FROM to support a
generic table AM. However, when performing a copy into a partitioned
table, this commit neglected to call table_finish_bulk_insert for each
partition. Before
86b85044e, when we always called the heap functions,
there was no need to call heapam_finish_bulk_insert for partitions since
it only did any work when performing a copy without WAL. For partitioned
tables, this was unsupported anyway, so there was no issue. With pluggable
storage, we can't make any assumptions about what the table AM might want
to do in its equivalent function, so we'd better ensure we always call
table_finish_bulk_insert each partition that's received a row.
For now, we make the table_finish_bulk_insert call whenever we evict a
CopyMultiInsertBuffer out of the CopyMultiInsertInfo. This does mean
that it's possible that we call table_finish_bulk_insert multiple times
per partition, which is not a problem other than being an inefficiency.
Improving this requires a more invasive patch, so let's leave that for
another day.
In passing, move the table_finish_bulk_insert for the target of the COPY
command so that it's only called when we're actually performing bulk
inserts. We don't need to call this when inserting 1 row at a time.
Reported-by: Robert Haas
Discussion: https://postgr.es/m/CA+TgmoYK=6BpxiJ0tN-p9wtH0BTAfbdxzHhwou0mdud4+BkYuQ@mail.gmail.com
Peter Eisentraut [Mon, 1 Jul 2019 11:34:31 +0000 (13:34 +0200)]
Convert some stragglers to new frontend logging API
Peter Eisentraut [Mon, 1 Jul 2019 11:07:14 +0000 (13:07 +0200)]
Add missing serial commas
Michael Paquier [Mon, 1 Jul 2019 01:00:23 +0000 (10:00 +0900)]
Fix many typos and inconsistencies
Author: Alexander Lakhin
Discussion: https://postgr.es/m/
af27d1b3-a128-9d62-46e0-
88f424397f44@gmail.com
Noah Misch [Mon, 1 Jul 2019 00:34:17 +0000 (17:34 -0700)]
Don't read fields of a misaligned ExpandedObjectHeader or AnyArrayType.
UBSan complains about this. Instead, cast to a suitable type requiring
only 4-byte alignment. DatumGetAnyArrayP() already assumes one can cast
between AnyArrayType and ArrayType, so this doesn't introduce a new
assumption. Back-patch to 9.5, where AnyArrayType was introduced.
Reviewed by Tom Lane.
Discussion: https://postgr.es/m/
20190629210334.GA1244217@rfd.leadboat.com
Andrew Gierth [Sun, 30 Jun 2019 22:49:13 +0000 (23:49 +0100)]
Repair logic for reordering grouping sets optimization.
The logic in reorder_grouping_sets to order grouping set elements to
match a pre-specified sort ordering was defective, resulting in
unnecessary sort nodes (though the query output would still be
correct). Repair, simplifying the code a little, and add a test.
Per report from Richard Guo, though I didn't use their patch. Original
bug seems to have been my fault.
Backpatch back to 9.5 where grouping sets were introduced.
Discussion: https://postgr.es/m/CAN_9JTzyjGcUjiBHxLsgqfk7PkdLGXiM=pwM+=ph2LsWw0WO1A@mail.gmail.com
Tom Lane [Sun, 30 Jun 2019 18:05:24 +0000 (14:05 -0400)]
Exclude new src/test/modules/unsafe_tests directory from MSVC build.
There's nothing to build here, and that was confusing AddContrib().
Per buildfarm.
Tom Lane [Sun, 30 Jun 2019 17:34:45 +0000 (13:34 -0400)]
Blind attempt to fix SSPI-auth case in 010_dump_connstr.pl.
Up to now, pg_regress --config-auth had a hard-wired assumption
that the target cluster uses the default bootstrap superuser name.
pg_dump's 010_dump_connstr.pl TAP test uses non-default superuser
names, and was klugily getting around the restriction by listing
the desired superuser name as a role to "create". This is pretty
confusing (or at least, it confused me). Let's make it clearer by
allowing --config-auth mode to be told the bootstrap superuser name.
Repurpose the existing --user switch for that, since it has no
other function in --config-auth mode.
Per buildfarm. I don't have an environment at hand in which I can
test this fix, but the buildfarm should soon show if it works.
Discussion: https://postgr.es/m/3142.
1561840611@sss.pgh.pa.us
Tom Lane [Sun, 30 Jun 2019 16:51:08 +0000 (12:51 -0400)]
Move rolenames test out of the core regression tests.
This test script is unsafe to run in "make installcheck" mode for
(at least) two reasons: it creates and destroys some role names
that don't follow the "regress_xxx" naming convention, and it
sets and then resets the application_name GUC attached to every
existing role. While we've not had complaints, these surely are
not good things to do within a production installation, and
regress.sgml pretty clearly implies that we won't do them.
Rather than lose test coverage altogether, let's just move this
script somewhere where it will get run by "make check" but not
"make installcheck". src/test/modules/ already has that property.
Since it seems likely that we'll want other regression tests in
future that also exceed the constraints of "make installcheck",
create a generically-named src/test/modules/unsafe_tests/
directory to hold them.
Discussion: https://postgr.es/m/16638.
1468620817@sss.pgh.pa.us
Peter Eisentraut [Sun, 30 Jun 2019 11:25:33 +0000 (13:25 +0200)]
Fix breakage introduced in pg_lsn_in()
Using PG_RETURN_LSN() from non-fmgr pg_lsn_in_internal() happened to
work on some platforms, but should just be a plain "return".
Peter Eisentraut [Sun, 30 Jun 2019 08:15:25 +0000 (10:15 +0200)]
Don't call data type input functions in GUC check hooks
Instead of calling pg_lsn_in() in check_recovery_target_lsn and
timestamptz_in() in check_recovery_target_time, reorganize the
respective code so that we don't raise any errors in the check hooks.
The previous code tried to use PG_TRY/PG_CATCH to handle errors in a
way that is not safe, so now the code contains no ereport() calls and
can operate safely within the GUC error handling system.
Moreover, since the interpretation of the recovery_target_time string
may depend on the time zone, we cannot do the final processing of that
string until all the GUC processing is done. Instead,
check_recovery_target_time() now does some parsing for syntax
checking, but the actual conversion to a timestamptz value is done
later in the recovery code that uses it.
Reported-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://www.postgresql.org/message-id/flat/
20190611061115.njjwkagvxp4qujhp%40alap3.anarazel.de
Peter Eisentraut [Wed, 12 Jun 2019 09:29:53 +0000 (11:29 +0200)]
Remove explicit error handling for obsolete date/time values
The date/time values 'current', 'invalid', and 'undefined' were
removed a long time ago, but the code still contains explicit error
handling for the transition. To simplify the code and avoid having to
handle these values everywhere, just remove the recognition of these
tokens altogether now.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Tom Lane [Sat, 29 Jun 2019 15:34:00 +0000 (11:34 -0400)]
Add an enforcement mechanism for global object names in regression tests.
In commit
18555b132 we tentatively established a rule that regression
tests should use names containing "regression" for databases, and names
starting with "regress_" for all other globally-visible object names, so
as to circumscribe the side-effects that "make installcheck" could have
on an existing installation.
This commit adds a simple enforcement mechanism for that rule: if the code
is compiled with ENFORCE_REGRESSION_TEST_NAME_RESTRICTIONS defined, it
will emit a warning (not an error) whenever a database, role, tablespace,
subscription, or replication origin name is created that doesn't obey the
rule. Running one or more buildfarm members with that symbol defined
should be enough to catch new violations, at least in the regular
regression tests. Most TAP tests wouldn't notice such warnings, but
that's actually fine because TAP tests don't execute against an existing
server anyway.
Since it's already the case that running src/test/modules/ tests in
installcheck mode is deprecated, we can use that as a home for tests
that seem unsafe to run against an existing server, such as tests that
might have side-effects on existing roles. Document that (though this
commit doesn't in itself make it any less safe than before).
Update regress.sgml to define these restrictions more clearly, and
to clean up assorted lack-of-up-to-date-ness in its descriptions of
the available regression tests.
Discussion: https://postgr.es/m/16638.
1468620817@sss.pgh.pa.us
Tom Lane [Sat, 29 Jun 2019 15:09:03 +0000 (11:09 -0400)]
Fix regression tests to use only global names beginning with "regress_".
In commit
18555b132 we tentatively established a rule that regression
tests should use names containing "regression" for databases, and names
starting with "regress_" for all other globally-visible object names, so
as to circumscribe the side-effects that "make installcheck" could have on
an existing installation. However, no enforcement mechanism was created,
so it's unsurprising that some new violations have crept in since then.
In fact, a whole new *category* of violations has crept in, to wit we now
also have globally-visible subscription and replication origin names, and
"make installcheck" could very easily clobber user-created objects of
those types. So it's past time to do something about this.
This commit sanitizes the tests enough that they will pass (i.e. not
generate any visible warnings) with the enforcement mechanism I'll add
in the next commit. There are some TAP tests that still trigger the
warnings, but the warnings do not cause test failure. Since these tests
do not actually run against a pre-existing installation, there's no need
to worry whether they could conflict with user-created objects.
The problem with rolenames.sql testing special role names like "user"
is still there, and is dealt with only very cosmetically in this patch
(by hiding the warnings :-(). What we actually need to do to be safe is
to take that test script out of "make installcheck" altogether, but that
seems like material for a separate patch.
Discussion: https://postgr.es/m/16638.
1468620817@sss.pgh.pa.us
Tom Lane [Sat, 29 Jun 2019 14:30:08 +0000 (10:30 -0400)]
Disallow user-created replication origins named "pg_xxx".
Since we generate such names internally, it seems like a good idea
to have a policy of disallowing them for user use, as we do for many
other object types. Otherwise attempts to use them will randomly
fail due to collisions with internally-generated names.
Discussion: https://postgr.es/m/3606.
1561747369@sss.pgh.pa.us
Michael Paquier [Sat, 29 Jun 2019 02:14:21 +0000 (11:14 +0900)]
Remove unnecessary header from be-secure-gssapi.c
libpq/libpq-be.h is included by libpq/libpq.h so there is no need to
explicitly include it separately.
Author: Daniel Gustafsson
Reviewed-by: Julien Rouhaud
Discussion: https://postgr.es/m/
A4852E46-9ED1-4861-A23B-
22A83E34A084@yesql.se
Alvaro Herrera [Fri, 28 Jun 2019 18:51:08 +0000 (14:51 -0400)]
Fix for dropped columns in a partitioned table's default partition
We forgot to map column numbers to/from the default partition for
various operations, leading to valid cases failing with spurious
errors, such as
ERROR: attribute N of type some_partition has been dropped
It was also possible that the search for conflicting rows in the default
partition when attaching another partition would fail to detect some.
Secondarily, it was also possible that such a search should be skipped
(because the constraint was implied) but wasn't.
Fix all this by mapping column numbers when necessary.
Reported by: Daniel Wilches
Author: Amit Langote
Discussion: https://postgr.es/m/15873-
8c61945d6b3ef87c@postgresql.org
Thomas Munro [Thu, 27 Jun 2019 23:11:26 +0000 (11:11 +1200)]
Fix misleading comment in nodeIndexonlyscan.c.
The stated reason for acquiring predicate locks on heap pages hasn't
existed since commit
c01262a8, so fix the comment. Perhaps in a later
release we'll also be able to change the code to use tuple locks.
Back-patch all the way.
Reviewed-by: Ashwin Agrawal
Discussion: https://postgr.es/m/CAEepm%3D2GK3FVdnt5V3d%2Bh9njWipCv_fNL%3DwjxyUhzsF%3D0PcbNg%40mail.gmail.com
Tomas Vondra [Thu, 27 Jun 2019 15:41:29 +0000 (17:41 +0200)]
Update reference to sampling algorithm in analyze.c
Commit
83e176ec1 moved row sampling functions from analyze.c to
utils/misc/sampling.c, but failed to update comment referring to
the sampling algorithm from Jeff Vitter's paper. Correct the
comment by pointing to utils/misc/sampling.c.
Author: Etsuro Fujita
Discussion: https://postgr.es/m/CAPmGK154gp%2BQd%3DcorQOv%2BPmbyVyZBjp_%2Bhb766UJeD1e_ie6XQ%40mail.gmail.com
Alvaro Herrera [Thu, 27 Jun 2019 15:57:10 +0000 (11:57 -0400)]
Fix use-after-free introduced in
55ed3defc966
Evidenced by failure under RELCACHE_FORCE_RELEASE (buildfarm member
prion).
Author: Amit Langote
Discussion: https://postgr.es/m/CA+HiwqGV=k_Eh4jBiQw66ivvdG+EUkrEYeHTYL1SvDj_YOYV0g@mail.gmail.com
Peter Eisentraut [Thu, 27 Jun 2019 13:57:14 +0000 (15:57 +0200)]
Update comment
Function was renamed/replaced in
c2fe139c201c48f1133e9fbea2dd99b8efe2fadd but the header comment was
not updated.
Michael Paquier [Wed, 26 Jun 2019 23:25:26 +0000 (08:25 +0900)]
Remove remaining traces of Rand_OpenSSL() from the tree
fe0a0b5 has removed the last use of this routine from pgcrypto, leading
to a useless symbol definition and an extra configure check.
Author: Michael Paquier
Reviewed-by: Daniel Gustafsson, Tom Lane
Discussion: https://postgr.es/m/
20190626142544.GN1714@paquier.xyz
Alvaro Herrera [Wed, 26 Jun 2019 22:38:51 +0000 (18:38 -0400)]
Fix partitioned index creation with foreign partitions
When a partitioned tables contains foreign tables as partitions, it is
not possible to implement unique or primary key indexes -- but when
regular indexes are created, there is no reason to do anything other
than ignoring such partitions. We were raising errors upon encountering
the foreign partitions, which is unfriendly and doesn't protect against
any actual problems.
Relax this restriction so that index creation is allowed on partitioned
tables containing foreign partitions, becoming a no-op on them. (We may
later want to redefine this so that the FDW is told to create the
indexes on the foreign side.) This applies to CREATE INDEX, as well as
ALTER TABLE / ATTACH PARTITION and CREATE TABLE / PARTITION OF.
Backpatch to 11, where indexes on partitioned tables were introduced.
Discussion: https://postgr.es/m/15724-
d5a58fa9472eef4f@postgresql.org
Author: Álvaro Herrera
Reviewed-by: Amit Langote
Tom Lane [Wed, 26 Jun 2019 03:06:17 +0000 (23:06 -0400)]
Follow the rule that regression-test-created roles are named "regress_xxx".
contrib/amcheck didn't get the memo either.
Tom Lane [Wed, 26 Jun 2019 02:53:42 +0000 (22:53 -0400)]
Follow the rule that regression-test-created roles are named "regress_xxx".
Commit
1c5d9270e had not gotten the word about this. (For previous
context, see
18555b132.)
Michael Paquier [Wed, 26 Jun 2019 01:44:46 +0000 (10:44 +0900)]
Add support for OpenSSL 1.1.0 and newer versions in MSVC scripts
Up to now, the MSVC build scripts are able to support only one fixed
version of OpenSSL, and they lacked logic to detect the version of
OpenSSL a given compilation of Postgres is linking to (currently 1.0.2,
the latest LTS of upstream which will be EOL'd at the end of 2019).
This commit adds more logic to detect the version of OpenSSL used by a
build and makes use of it to add support for compilation with OpenSSL
1.1.0 which requires a new set of compilation flags to work properly.
The supported OpenSSL installers have changed their library layer with
various library renames with the upgrade to 1.1.0, making the logic a
bit more complicated. The scripts are now able to adapt to the new
world order.
Reported-by: Sergey Pashkov
Author: Juan José Santamaría Flecha, Michael Paquier
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/15789-
8fc75dea3c5a17c8@postgresql.org
Michael Paquier [Tue, 25 Jun 2019 00:09:27 +0000 (09:09 +0900)]
Add toast-level reloption for vacuum_index_cleanup
a96c41f has introduced the option for heap, but it still lacked the
variant to control the behavior for toast relations.
While on it, refactor the tests so as they stress more scenarios with
the various values that vacuum_index_cleanup can use. It would be
useful to couple those tests with pageinspect to check that pages are
actually cleaned up, but this is left for later.
Author: Masahiko Sawada, Michael Paquier
Reviewed-by: Peter Geoghegan
Discussion: https://postgr.es/m/CAD21AoCqs8iN04RX=i1KtLSaX5RrTEM04b7NHYps4+rqtpWNEg@mail.gmail.com
Thomas Munro [Mon, 24 Jun 2019 21:29:53 +0000 (09:29 +1200)]
Don't unset MAKEFLAGS in non-GNU Makefile.
It's useful to be able to pass down options like -s and -j.
Back-patch to 9.5, like commit
a76200de.
Discussion: https://postgr.es/m/CA%2BhUKG%2Be1M8-BbL%3DPqhTp6oO6XPO6%2Bs9WGQMLfbuZ%3DG9CtzyXg%40mail.gmail.com
Thomas Munro [Mon, 24 Jun 2019 21:17:04 +0000 (09:17 +1200)]
Remove misleading comment from pathnodes.h.
As of commit
e5253fdc, it is no longer true that the leader always
executes the subplan of a Gather Merge node. Remove comment to that
effect.
Back-patch to 11.
Discussion: https://postgr.es/m/CA%2BhUKGJEaZJYezXAOutuiWT%2BfxCA44%2BoKtVPAND2ubLiigR%3D-w%40mail.gmail.com
Tom Lane [Mon, 24 Jun 2019 21:19:32 +0000 (17:19 -0400)]
Purely-cosmetic adjustments in tablecmds.c.
Move ATExecAlterColumnGenericOptions away from where it was unthinkingly
dropped, in the middle of a lot of ALTER COLUMN TYPE code. I don't have
any high principles about where to put it instead, so let's just put it
after ALTER COLUMN TYPE and before ALTER OWNER, matching existing
decisions about how to order related code stanzas.
Also add the minimal function header comment that the original author
was too cool to bother with.
Along the way, upgrade header comments for nearby ALTER COLUMN TYPE
functions.
Discussion: https://postgr.es/m/14787.
1561403130@sss.pgh.pa.us
Peter Eisentraut [Wed, 19 Jun 2019 20:15:43 +0000 (22:15 +0200)]
Update unicode_norm_table.h to Unicode 12.1.0
Peter Eisentraut [Wed, 19 Jun 2019 20:09:50 +0000 (22:09 +0200)]
Make script output more pgindent compatible
Peter Eisentraut [Wed, 19 Jun 2019 20:09:29 +0000 (22:09 +0200)]
Correct script name in README file
Tom Lane [Mon, 24 Jun 2019 20:43:05 +0000 (16:43 -0400)]
Further fix ALTER COLUMN TYPE's handling of indexes and index constraints.
This patch reverts all the code changes of commit
e76de8861, which turns
out to have been seriously misguided. We can't wait till later to compute
the definition string for an index; we must capture that before applying
the data type change for any column it depends on, else ruleutils.c will
deliverr wrong/misleading results. (This fine point was documented
nowhere, of course.)
I'd also managed to forget that ATExecAlterColumnType executes once per
ALTER COLUMN TYPE clause, not once per statement; which resulted in the
code being basically completely broken for any case in which multiple ALTER
COLUMN TYPE clauses are applied to a table having non-constraint indexes
that must be rebuilt. Through very bad luck, none of the existing test
cases nor the ones added by
e76de8861 caught that, but of course it was
soon found in the field.
The previous patch also had an implicit assumption that if a constraint's
index had a dependency on a table column, so would the constraint --- but
that isn't actually true, so it didn't fix such cases.
Instead of trying to delete unneeded index dependencies later, do the
is-there-a-constraint lookup immediately on seeing an index dependency,
and switch to remembering the constraint if so. In the unusual case of
multiple column dependencies for a constraint index, this will result in
duplicate constraint lookups, but that's not that horrible compared to all
the other work that happens here. Besides, such cases did not work at all
before, so it's hard to argue that they're performance-critical for anyone.
Per bug #15865 from Keith Fiske. As before, back-patch to all supported
branches.
Discussion: https://postgr.es/m/15865-
17940eacc8f8b081@postgresql.org
Peter Geoghegan [Mon, 24 Jun 2019 17:31:58 +0000 (10:31 -0700)]
Correct obsolete amcheck comments.
Oversight in commit
dd299df8.
Tom Lane [Mon, 24 Jun 2019 16:36:51 +0000 (12:36 -0400)]
Drop test user when done with it.
Commit
d7f8d26d9 added a test case that created a user, but forgot
to drop it again. This is no good; for one thing, it causes repeated
"make installcheck" runs to fail.
Peter Eisentraut [Mon, 24 Jun 2019 08:39:12 +0000 (10:39 +0200)]
Upgrade internal error message to external
As part of REINDEX CONCURRENTLY, this formerly internal-only error
message becomes potentially user-visible (see regression tests), so
change from errmsg_internal() to errmsg(), and update comment.
Noah Misch [Sun, 23 Jun 2019 19:02:19 +0000 (12:02 -0700)]
Don't call PG_RETURN_BOOL() in a function not returning Datum.
This code is new in v12, and the defect probably was not user-visible.
Dean Rasheed [Sun, 23 Jun 2019 17:50:08 +0000 (18:50 +0100)]
Add security checks to the multivariate MCV estimation code.
The multivariate MCV estimation code may run user-defined operators on
the values in the MCV list, which means that those operators may
potentially leak the values from the MCV list. Guard against leaking
data to unprivileged users by checking that the user has SELECT
privileges on the table or all of the columns referred to by the
statistics.
Additionally, if there are any securityQuals on the RTE (either due to
RLS policies on the table, or accessing the table via a security
barrier view), not all rows may be visible to the current user, even
if they have table or column privileges. Thus we further insist that
the operator be leakproof in this case.
Dean Rasheed, reviewed by Tomas Vondra.
Discussion: https://postgr.es/m/CAEZATCUhT9rt7Ui=Vdx4N==VV5XOK5dsXfnGgVOz_JhAicB=ZA@mail.gmail.com
Thomas Munro [Sun, 23 Jun 2019 10:19:59 +0000 (22:19 +1200)]
Remove unnecessary comment.
Author: Vik Fearing
Discussion: https://postgr.es/m/
150d3e9f-c7ec-3fb3-4fdb-
def47c4144af%402ndquadrant.com
Tom Lane [Sun, 23 Jun 2019 00:31:50 +0000 (20:31 -0400)]
Fix spinlock assembly code for MIPS so it works on MIPS r6.
Original MIPS-I processors didn't have the LL/SC instructions (nor any
other userland synchronization primitive). If the build toolchain
targets that ISA variant by default, as an astonishingly large fraction
of MIPS platforms still do, the assembler won't take LL/SC without
coercion in the form of a ".set mips2" instruction. But we issued that
unconditionally, making it an ISA downgrade for chips later than MIPS2.
That breaks things for the latest MIPS r6 ISA, which encodes these
instructions differently. Adjust the code so we don't change ISA level
if it's >= 2.
Note that this patch doesn't change what happens on an actual MIPS-I
processor: either the kernel will emulate these instructions
transparently, or you'll get a SIGILL failure. That tradeoff seemed
fine in 2002 when this code was added (cf
3cbe6b247), and it's even
more so today when MIPS-I is basically extinct. But let's add a
comment about that.
YunQiang Su (with cosmetic adjustments by me). Back-patch to all
supported branches.
Discussion: https://postgr.es/m/15844-
8f62fe7e163939b3@postgresql.org
Noah Misch [Sat, 22 Jun 2019 03:34:23 +0000 (20:34 -0700)]
Consolidate methods for translating a Perl path to a Windows path.
This fixes some TAP suites when using msys Perl and a builddir located
in an msys mount point other than "/". For example, builddir=/c/pg
exhibited the problem, since /c/pg falls in mount point "/c".
Back-patch to 9.6, where tests first started to perform such
translations. In back branches, offer both new and old APIs.
Reviewed by Andrew Dunstan.
Discussion: https://postgr.es/m/
20190610045838.GA238501@rfd.leadboat.com
Thomas Munro [Thu, 20 Jun 2019 22:57:07 +0000 (10:57 +1200)]
Remove obsolete comments about sempahores from proc.c.
Commit
6753333f switched from a semaphore-based wait to a latch-based
wait for ProcSleep()/ProcWakeup(), but left behind some stray references
to semaphores.
Back-patch to 9.5.
Reviewed-by: Daniel Gustafsson, Michael Paquier
Discussion: https://postgr.es/m/CA+hUKGLs5H6zhmgTijZ1OaJvC1sG0=AFXc1aHuce32tKiQrdEA@mail.gmail.com
Michael Paquier [Thu, 20 Jun 2019 04:28:12 +0000 (13:28 +0900)]
Rework some error strings for REINDEX CONCURRENTLY with system catalogs
This makes the whole user experience more consistent when bumping into
failures, and more in line with the rewording done via
508300e.
Author: Michael Paquier
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/
20190514153252.GA22168@alvherre.pgsql
Michael Paquier [Thu, 20 Jun 2019 04:04:56 +0000 (13:04 +0900)]
Fix description of pg_class.relam for table access methods
Author: Ian Barwick
Discussion: https://postgr.es/m/
087a6961-1aaf-e36c-b712-
bd5a644da20a@2ndquadrant.com
Peter Eisentraut [Wed, 19 Jun 2019 19:49:03 +0000 (21:49 +0200)]
pg_upgrade: Improve error messages
Make wording more accurate and add strerror() information.
Discussion: https://www.postgresql.org/message-id/
24c8bd05-aed1-6301-919d-
8acbabdb8c24@2ndquadrant.com
Peter Eisentraut [Wed, 19 Jun 2019 19:43:31 +0000 (21:43 +0200)]
pg_upgrade: Improve invalid option handling
Currently, calling pg_upgrade with an invalid command-line option
aborts pg_upgrade but leaves a pg_upgrade_internal.log file lying
around. Reorder things a bit so that that file is not created until
all the options have been parsed.
Discussion: https://www.postgresql.org/message-id/
24c8bd05-aed1-6301-919d-
8acbabdb8c24@2ndquadrant.com
Alexander Korotkov [Wed, 19 Jun 2019 19:41:12 +0000 (22:41 +0300)]
Fix description for $varname jsonpath variable
The description is ended part way and PASSING clause is not implemented yet.
But the variables might be passed as parameters to several jsonpath functions.
So, complete the description based on the current implementation, leaving
description of PASSING clause in TODO.
Discussion: https://postgr.es/m/CAKPRHz%2BxOuQSSvkuB1mCQjedd%2BB2B1Vnkrq0E-pLmoXyTO%2Bz9Q%40mail.gmail.com
Author: Kyotaro Horiguchi, Alexander Korotkov
Alexander Korotkov [Wed, 19 Jun 2019 19:41:05 +0000 (22:41 +0300)]
Improve documentation for jsonpath like_regex predicate
Reference posix regex documentation section and list supported flags.
Discussion: https://postgr.es/m/CAKPRHz%2BxOuQSSvkuB1mCQjedd%2BB2B1Vnkrq0E-pLmoXyTO%2Bz9Q%40mail.gmail.com
Author: Kyotaro Horiguchi, Alexander Korotkov
Alexander Korotkov [Wed, 19 Jun 2019 19:40:58 +0000 (22:40 +0300)]
Support 'q' flag in jsonpath 'like_regex' predicate
SQL/JSON standard defines that jsonpath 'like_regex' predicate should support
the same set of flags as XQuery/XPath. It appears that implementation of 'q'
flag was missed. This commit fixes that.
Discussion: https://postgr.es/m/CAPpHfdtyfPsxLYiTjp5Ov8T5xGsB5t3CwE5%2B3PS%3DLLwA%2BxTJog%40mail.gmail.com
Author: Nikita Glukhov, Alexander Korotkov
Peter Eisentraut [Wed, 19 Jun 2019 19:35:41 +0000 (21:35 +0200)]
Update list of combining characters
The list of combining characters to ignore for calculating the display
width of a string (used for example by psql) was wildly outdated and
incorrect.
Discussion: https://www.postgresql.org/message-id/flat/
bbb19114-af1e-513b-08a9-
61272794bd5c%402ndquadrant.com
Peter Eisentraut [Wed, 19 Jun 2019 19:26:42 +0000 (21:26 +0200)]
Add XSL stylesheet to fix up SVG files
The SVG output produced by external tools needs some postprocessing.
This is implemented by this new XSL stylesheet.
Issues are:
- SVG produced by Ditaa does not add a viewBox attribute to the svg
element, needed to make the image scalable.
- SVG produced by Graphviz uses a stroke="transparent" attribute,
which is not valid SVG. It appears to mostly work, but FOP
complains.
Other tweaks can be added over time.
This reverts
7dc78d8ef3e62f7e06d7767c63dcede048377b9a and
29046c44f36099f4c979b1491fcf27db2f9184f9, which applied these fixes
manually.
Magnus Hagander [Wed, 19 Jun 2019 12:59:26 +0000 (14:59 +0200)]
Fix typo
Author: Daniel Gustafsson
Magnus Hagander [Wed, 19 Jun 2019 12:38:23 +0000 (14:38 +0200)]
Replace an occurrence of slave with standby
Commit
a1ef920e27ba6ab3602aaf6d6751d8628fac1af8 replaced the use of
slave with standby, but overlooked this comment.
Author: Daniel Gustafsson
Michael Paquier [Wed, 19 Jun 2019 02:18:50 +0000 (11:18 +0900)]
Remove last references to WAL segment size in MSVC scripts
fc49e24 has removed the last use of this compile-time variable as WAL
segment size is something that can now be set at initdb time, still this
commit has forgotten some references to it.
Discussion: https://postgr.es/m/
20190617073228.GE18917@paquier.xyz
Michael Paquier [Wed, 19 Jun 2019 02:02:19 +0000 (11:02 +0900)]
Fix description of WAL record XLOG_BTREE_META_CLEANUP
This record uses one metadata buffer and registers some data associated
to the buffer, but when parsing the record for its description a direct
access to the record data was done, but there is none. This leads
usually to an incorrect description, but can also cause crashes like in
pg_waldump. Instead, fix things so as the parsing uses the data
associated to the metadata block.
This is an oversight from
3d92796, so backpatch down to 11.
Author: Michael Paquier
Description: https://postgr.es/m/
20190617013059.GA3153@paquier.xyz
Backpatch-through: 11
Andres Freund [Tue, 18 Jun 2019 22:51:04 +0000 (15:51 -0700)]
Fix memory corruption/crash in ANALYZE.
This fixes an embarrassing oversight I (Andres) made in
737a292b,
namely missing two place where liverows/deadrows were used when
converting those variables to pointers, leading to incrementing the
pointer, rather than the value.
It's not that actually that easy to trigger a crash: One needs tuples
deleted by the current transaction, followed by a tuple deleted in
another session, all in one page. Which is presumably why this hasn't
been noticed before.
Reported-By: Steve Singer
Author: Steve Singer
Discussion: https://postgr.es/m/
c7988239-d42c-ddc4-41db-
171b23b35e4f@ssinger.info
Alvaro Herrera [Tue, 18 Jun 2019 22:23:16 +0000 (18:23 -0400)]
Avoid spurious deadlocks when upgrading a tuple lock
This puts back reverted commit
de87a084c0a5, with some bug fixes.
When two (or more) transactions are waiting for transaction T1 to release a
tuple-level lock, and transaction T1 upgrades its lock to a higher level, a
spurious deadlock can be reported among the waiting transactions when T1
finishes. The simplest example case seems to be:
T1: select id from job where name = 'a' for key share;
Y: select id from job where name = 'a' for update; -- starts waiting for T1
Z: select id from job where name = 'a' for key share;
T1: update job set name = 'b' where id = 1;
Z: update job set name = 'c' where id = 1; -- starts waiting for T1
T1: rollback;
At this point, transaction Y is rolled back on account of a deadlock: Y
holds the heavyweight tuple lock and is waiting for the Xmax to be released,
while Z holds part of the multixact and tries to acquire the heavyweight
lock (per protocol) and goes to sleep; once T1 releases its part of the
multixact, Z is awakened only to be put back to sleep on the heavyweight
lock that Y is holding while sleeping. Kaboom.
This can be avoided by having Z skip the heavyweight lock acquisition. As
far as I can see, the biggest downside is that if there are multiple Z
transactions, the order in which they resume after T1 finishes is not
guaranteed.
Backpatch to 9.6. The patch applies cleanly on 9.5, but the new tests don't
work there (because isolationtester is not smart enough), so I'm not going
to risk it.
Author: Oleksii Kliukin
Discussion: https://postgr.es/m/
B9C9D7CD-EB94-4635-91B6-
E558ACEC0EC3@hintbits.com
Discussion: https://postgr.es/m/2815.
1560521451@sss.pgh.pa.us
Thomas Munro [Tue, 18 Jun 2019 10:38:30 +0000 (22:38 +1200)]
Prevent Parallel Hash Join for JOIN_UNIQUE_INNER.
WHERE EXISTS (...) queries cannot be executed by Parallel Hash Join
with jointype JOIN_UNIQUE_INNER, because there is no way to make a
partial plan totally unique. The consequence of allowing such plans
was duplicate results from some EXISTS queries.
Back-patch to 11. Bug #15857.
Author: Thomas Munro
Reviewed-by: Tom Lane
Reported-by: Vladimir Kriukov
Discussion: https://postgr.es/m/15857-
d1ba2a64bce0795e%40postgresql.org
Tom Lane [Mon, 17 Jun 2019 21:12:29 +0000 (17:12 -0400)]
Stamp 12beta2.
Peter Eisentraut [Mon, 17 Jun 2019 13:07:14 +0000 (15:07 +0200)]
Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash:
1a710c413ce4c4cd081843e563cde256bb95f490
Michael Paquier [Mon, 17 Jun 2019 13:13:57 +0000 (22:13 +0900)]
Fix buffer overflow when processing SCRAM final message in libpq
When a client connects to a rogue server sending specifically-crafted
messages, this can suffice to execute arbitrary code as the operating
system account used by the client.
While on it, fix one error handling when decoding an incorrect salt
included in the first message received from server.
Author: Michael Paquier
Reviewed-by: Jonathan Katz, Heikki Linnakangas
Security: CVE-2019-10164
Backpatch-through: 10
Michael Paquier [Mon, 17 Jun 2019 12:48:17 +0000 (21:48 +0900)]
Fix buffer overflow when parsing SCRAM verifiers in backend
Any authenticated user can overflow a stack-based buffer by changing the
user's own password to a purpose-crafted value. This often suffices to
execute arbitrary code as the PostgreSQL operating system account.
This fix is contributed by multiple folks, based on an initial analysis
from Tom Lane. This issue has been introduced by
68e61ee, so it was
possible to make use of it at authentication time. It became more
easily to trigger after
ccae190 which has made the SCRAM parsing more
strict when changing a password, in the case where the client passes
down a verifier already hashed using SCRAM. Back-patch to v10 where
SCRAM has been introduced.
Reported-by: Alexander Lakhin
Author: Jonathan Katz, Heikki Linnakangas, Michael Paquier
Security: CVE-2019-10164
Backpatch-through: 10
Michael Paquier [Mon, 17 Jun 2019 07:13:16 +0000 (16:13 +0900)]
Fix more typos and inconsistencies in the tree
Author: Alexander Lakhin
Discussion: https://postgr.es/m/
0a5419ea-1452-a4e6-72ff-
545b1a5a8076@gmail.com
Alvaro Herrera [Mon, 17 Jun 2019 02:24:21 +0000 (22:24 -0400)]
Revert "Avoid spurious deadlocks when upgrading a tuple lock"
This reverts commits
3da73d6839dc and
de87a084c0a5.
This code has some tricky corner cases that I'm not sure are correct and
not properly tested anyway, so I'm reverting the whole thing for next
week's releases (reintroducing the deadlock bug that we set to fix).
I'll try again afterwards.
Discussion: https://postgr.es/m/E1hbXKQ-0003g1-0C@gemulon.postgresql.org
Tom Lane [Sun, 16 Jun 2019 18:02:22 +0000 (14:02 -0400)]
Doc: remove description of commit
23bd3cec6 from v12 release notes.
Now that we've back-patched that, it shouldn't be mentioned in v12
anymore.
Tom Lane [Sun, 16 Jun 2019 15:00:23 +0000 (11:00 -0400)]
Further fix privileges on pg_statistic_ext[_data].
We don't need to restrict column privileges on pg_statistic_ext;
all of that data is OK to read publicly. What we *do* need to do,
which was overlooked by
6cbfb784c, is revoke public read access on
pg_statistic_ext_data; otherwise we still have the same security
hole we started with.
Catversion bump to ensure that installations calling themselves
beta2 will have this fix.
Diagnosis/correction by Dean Rasheed and Tomas Vondra, but I'm
going to go ahead and push this fix ASAP so we get more buildfarm
cycles on it.
Discussion: https://postgr.es/m/8833.
1560647898@sss.pgh.pa.us
Tomas Vondra [Sun, 16 Jun 2019 10:04:40 +0000 (12:04 +0200)]
Fix privileges on pg_statistic_ext.tableoid
The GRANT in system_views allowed SELECT privileges on various columns in
the pg_statistic_ext catalog, but tableoid was not included in the list.
That made pg_dump fail because it's accessing this column when building
the list of extended statistics to dump.
Discussion: https://postgr.es/m/8833.
1560647898%40sss.pgh.pa.us
Tomas Vondra [Sat, 15 Jun 2019 19:38:53 +0000 (21:38 +0200)]
Fix incorrect CREATE STATISTICS example in docs
The example was incorrectly using parantheses around the list of columns, so
just drop them.
Reported-By: Robert Haas
Discussion: https://postgr.es/m/CA%2BTgmoZZEMAqWMAfvLHZnK57SoxOutgvE-ALO94WsRA7zZ7wyQ%40mail.gmail.com
Tomas Vondra [Thu, 13 Jun 2019 15:25:04 +0000 (17:25 +0200)]
Add pg_stats_ext view for extended statistics
Regular per-column statistics are stored in pg_statistics catalog, which
is however rather difficult to read, so we also have pg_stats view with
a human-reablable version of the data.
For extended statistic the catalog was fairly easy to read, so we did
not have such human-readable view so far. Commit
9b6babfa2d however did
split the catalog into two, which makes querying harder. Furthermore,
we want to show the multi-column MCV list in a way similar to per-column
stats (and not as a bytea value).
This commit introduces pg_stats_ext view, joining the two catalogs and
massaging the data to produce human-readable output similar to pg_stats.
It also considers RLS and access privileges - the data is shown only when
the user has access to all columns the extended statistic is defined on.
Bumped CATVERSION due to adding new system view.
Author: Dean Rasheed, with improvements by me
Reviewed-by: Dean Rasheed, John Naylor
Discussion: https://postgr.es/m/CAEZATCUhT9rt7Ui%3DVdx4N%3D%3DVV5XOK5dsXfnGgVOz_JhAicB%3DZA%40mail.gmail.com
Tomas Vondra [Thu, 13 Jun 2019 15:19:21 +0000 (17:19 +0200)]
Rework the pg_statistic_ext catalog
Since extended statistic got introduced in PostgreSQL 10, there was a
single catalog pg_statistic_ext storing both the definitions and built
statistic. That's however problematic when a user is supposed to have
access only to the definitions, but not to user data.
Consider for example pg_dump on a database with RLS enabled - if the
pg_statistic_ext catalog respects RLS (which it should, if it contains
user data), pg_dump would not see any records and the result would not
define any extended statistics. That would be a surprising behavior.
Until now this was not a pressing issue, because the existing types of
extended statistic (functional dependencies and ndistinct coefficients)
do not include any user data directly. This changed with introduction
of MCV lists, which do include most common combinations of values.
The easiest way to fix this is to split the pg_statistic_ext catalog
into two - one for definitions, one for the built statistic values.
The new catalog is called pg_statistic_ext_data, and we're maintaining
a 1:1 relationship with the old catalog - either there are matching
records in both catalogs, or neither of them.
Bumped CATVERSION due to changing system catalog definitions.
Author: Dean Rasheed, with improvements by me
Reviewed-by: Dean Rasheed, John Naylor
Discussion: https://postgr.es/m/CAEZATCUhT9rt7Ui%3DVdx4N%3D%3DVV5XOK5dsXfnGgVOz_JhAicB%3DZA%40mail.gmail.com
Andrew Gierth [Sat, 15 Jun 2019 17:15:23 +0000 (18:15 +0100)]
Prefer timezone name "UTC" over alternative spellings.
tzdb 2019a made "UCT" a link to the "UTC" zone rather than a separate
zone with its own abbreviation. Unfortunately, our code for choosing a
timezone in initdb has an arbitrary preference for names earlier in
the alphabet, and so it would choose the spelling "UCT" over "UTC"
when the system is running on a UTC zone.
Commit
23bd3cec6 was backpatched in order to address this issue, but
that code helps only when /etc/localtime exists as a symlink, and does
nothing to help on systems where /etc/localtime is a copy of a zone
file (as is the standard setup on FreeBSD and probably some other
platforms too) or when /etc/localtime is simply absent (giving UTC as
the default).
Accordingly, add a preference for the spelling "UTC", such that if
multiple zone names have equally good content matches, we prefer that
name before applying the existing arbitrary rules. Also add a slightly
lower preference for "Etc/UTC"; lower because that preserves the
previous behaviour of choosing the shorter name, but letting us still
choose "Etc/UTC" over "Etc/UCT" when both exist but "UTC" does
not (not common, but I've seen it happen).
Backpatch all the way, because the tzdb change that sparked this issue
is in those branches too.