| Commit message (Collapse) | Author | Age |
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crosstabview.c was not added to nls.mk when it was added. Also remove
redundant gettext markers, since psql_error() is already registered as a
gettext keyword.
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The new option --progress-timestamp was just added at the end. Put it
in alphabetical order.
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dumpAccessMethod() didn't get the memo that we now have a bitfield for
the components which should be dumped instead of a simple boolean.
Correct that by checking if the relevant bit is set for each component
being dumped out (and not dumping it out if it isn't set).
This corrects an issue where CREATE ACCESS METHOD commands were being
included in non-binary-upgrades when an extension included an access
method (as the bloom extensions does).
Also add a regression test to make sure that we only dump out the
ACCESS METHOD commands, when they are part of an extension, when doing
a binary upgrade.
Pointed out by Thom Brown.
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For historical reasons, copyFile and rewriteVisibilityMap took a force
argument which was always passed as true, meaning that any existing
file should be overwritten. However, it seems much safer to instead
fail if a file we need to write already exists.
While we're at it, remove the "force" argument altogether, since it was
never passed as anything other than true (and now we would never pass
it as anything other than false, if we kept it).
Noted by Andres Freund during post-commit review of the patch that added
rewriteVisibilityMap, commit 7087166a88fe0c04fc6636d0d6d6bea1737fc1fb,
but this also changes the behavior when copying files without rewriting
them.
Patch by Masahiko Sawada.
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In the old logic, if read() were to return an error, we'd silently stop
rewriting the visibility map at that point in the file. That's safe,
but reporting the error is better, so do that instead.
Report by Andres Freund. Patch by Masahiko Sawada, with one correction
by me.
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Adopt the same solution as in commit aa90e148ca70a235, but this time
let's put the ugliness inside the write_stderr() macro, instead of
expecting each call site to deal with it. Back-port that decision
into psql/common.c where I got the macro from in the first place.
Per gripe from Peter Eisentraut.
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Mostly these are just comments but there are a few in documentation
and a handful in code and tests. Hopefully this doesn't cause too much
unnecessary pain for backpatching. I relented from some of the most
common like "thru" for that reason. The rest don't seem numerous
enough to cause problems.
Thanks to Kevin Lyda's tool https://pypi.python.org/pypi/misspellings
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Formerly, Unix builds of pg_dump/pg_restore would trap SIGINT and similar
signals and set a flag that was tested in various data-transfer loops.
This was prone to errors of omission (cf commit 3c8aa6654); and even if
the client-side response was prompt, we did nothing that would cause
long-running SQL commands (e.g. CREATE INDEX) to terminate early.
Also, the master process would effectively do nothing at all upon receipt
of SIGINT; the only reason it seemed to work was that in typical scenarios
the signal would also be delivered to the child processes. We should
support termination when a signal is delivered only to the master process,
though.
Windows builds had no console interrupt handler, so they would just fall
over immediately at control-C, again leaving long-running SQL commands to
finish unmolested.
To fix, remove the flag-checking approach altogether. Instead, allow the
Unix signal handler to send a cancel request directly and then exit(1).
In the master process, also have it forward the signal to the children.
On Windows, add a console interrupt handler that behaves approximately
the same. The main difference is that a single execution of the Windows
handler can send all the cancel requests since all the info is available
in one process, whereas on Unix each process sends a cancel only for its
own database connection.
In passing, fix an old problem that DisconnectDatabase tends to send a
cancel request before exiting a parallel worker, even if nothing went
wrong. This is at least a waste of cycles, and could lead to unexpected
log messages, or maybe even data loss if it happened in pg_restore (though
in the current code the problem seems to affect only pg_dump). The cause
was that after a COPY step, pg_dump was leaving libpq in PGASYNC_BUSY
state, causing PQtransactionStatus() to report PQTRANS_ACTIVE. That's
normally harmless because the next PQexec() will silently clear the
PGASYNC_BUSY state; but in a parallel worker we might exit without any
additional SQL commands after a COPY step. So add an extra PQgetResult()
call after a COPY to allow libpq to return to PGASYNC_IDLE state.
This is a bug fix, IMO, so back-patch to 9.3 where parallel dump/restore
were introduced.
Thanks to Kyotaro Horiguchi for Windows testing and code suggestions.
Original-Patch: <7005.1464657274@sss.pgh.pa.us>
Discussion: <20160602.174941.256342236.horiguchi.kyotaro@lab.ntt.co.jp>
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Parallel dump did a totally pointless query to find out the name of each
table to be dumped, which it already knows. Parallel restore runs issued
lots of redundant SET commands because _doSetFixedOutputState() was invoked
once per TOC item rather than just once at connection start. While the
extra queries are insignificant if you're dumping or restoring large
tables, it still seems worth getting rid of them.
Also, give the responsibility for selecting the right client_encoding for
a parallel dump worker to setup_connection() where it naturally belongs,
instead of having ad-hoc code for that in CloneArchive(). And fix some
minor bugs like use of strdup() where pg_strdup() would be safer.
Back-patch to 9.3, mostly to keep the branches in sync in an area that
we're still finding bugs in.
Discussion: <5086.1464793073@sss.pgh.pa.us>
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Parallel restore from directory format failed to respond to control-C
in a timely manner, because there were no checkAborting() calls in the
code path that reads data from a file and sends it to the backend.
If any worker was in the midst of restoring data for a large table,
you'd just have to wait.
This fix doesn't do anything for the problem of aborting a long-running
server-side command, but at least it fixes things for data transfers.
Back-patch to 9.3 where parallel restore was introduced.
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This was effectively dead code, since the places that tested it could not
be reached after we entered the on-exit-cleanup routine that would set it.
It seems to have been a leftover from a design in which error abort would
try to send fresh commands to the workers --- a design which could never
have worked reliably, of course. Since the flag is not cross-platform, it
complicates reasoning about the code's behavior, which we could do without.
Although this is effectively just cosmetic, back-patch anyway, because
there are some actual bugs in the vicinity of this behavior.
Discussion: <15583.1464462418@sss.pgh.pa.us>
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The commentary in this file was in extremely sad shape. The author(s)
had clearly never heard of the project convention that a function header
comment should provide an API spec of some sort for that function. Much
of it was flat out wrong, too --- maybe it was accurate when written, but
if so it had not been updated to track subsequent code revisions. Rewrite
and rearrange to try to bring it up to speed, and annotate some of the
places where more work is needed. (I've refrained from actually fixing
anything of substance ... yet.)
Also, rename a couple of functions for more clarity as to what they do,
do some very minor code rearrangement, remove some pointless Asserts,
fix an incorrect Assert in readMessageFromPipe, and add a missing socket
close in one error exit from pgpipe(). The last would be a bug if we
tried to continue after pgpipe() failure, but since we don't, it's just
cosmetic at present.
Although this is only cosmetic, back-patch to 9.3 where parallel.c was
added. It's sufficiently invasive that it'll pose a hazard for future
back-patching if we don't.
Discussion: <25239.1464386067@sss.pgh.pa.us>
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Since we start the worker threads with _beginthreadex(), we should use
_endthreadex() to terminate them. We got this right in the normal-exit
code path, but not so much during an error exit from a worker.
In addition, be sure to apply CloseHandle to the thread handle after
each thread exits.
It's not clear that these oversights cause any user-visible problems,
since the pg_dump run is about to terminate anyway. Still, it's clearly
better to follow Microsoft's API specifications than ignore them.
Also a few cosmetic cleanups in WaitForTerminatingWorkers(), including
being a bit less random about where to cast between uintptr_t and HANDLE,
and being sure to clear the worker identity field for each dead worker
(not that false matches should be possible later, but let's be careful).
Original observation and patch by Armin Schöffmann, cosmetic improvements
by Michael Paquier and me. (Armin's patch also included closing sockets
in ShutdownWorkersHard(), but that's been dealt with already in commit
df8d2d8c4.) Back-patch to 9.3 where parallel pg_dump was introduced.
Discussion: <zarafa.570306bd.3418.074bf1420d8f2ba2@root.aegaeon.de>
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Getting a synchronized snapshot is not supported on a hot standby node,
and is by default taken when using -j with multiple sessions. Trying to
do so still failed, but with a server error that would also go in the
log. Instead, proprely detect this case and give a better error message.
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For some reason the code to emit a warning and switch to uncompressed
output was placed down in the guts of pg_backup_archiver.c. This is
definitely too late in the case of parallel operation (and I rather
wonder if it wasn't too late for other purposes as well). Put it in
pg_dump.c's option-processing logic, which seems a much saner place.
Also, the default behavior with custom or directory output format was
to emit the warning telling you the output would be uncompressed. This
seems unhelpful, so silence that case.
Back-patch to 9.3 where parallel dump was introduced.
Kyotaro Horiguchi, adjusted a bit by me
Report: <20160526.185551.242041780.horiguchi.kyotaro@lab.ntt.co.jp>
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The Windows coding of ShutdownWorkersHard() thought that setting termEvent
was sufficient to make workers exit after an error. But that only helps
if a worker is busy and passes through checkAborting(). An idle worker
will just sit, resulting in pg_dump failing to exit until the user gives up
and hits control-C. We should close the write end of the command pipe
so that idle workers will see socket EOF and exit, as the Unix coding was
already doing.
Back-patch to 9.3 where parallel pg_dump was introduced.
Kyotaro Horiguchi
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In the original design for parallel dump, worker processes reported errors
by sending them up to the master process, which would print the messages.
This is unworkably fragile for a couple of reasons: it risks deadlock if a
worker sends an error at an unexpected time, and if the master has already
died for some reason, the user will never get to see the error at all.
Revert that idea and go back to just always printing messages to stderr.
This approach means that if all the workers fail for similar reasons (eg,
bad password or server shutdown), the user will see N copies of that
message, not only one as before. While that's slightly annoying, it's
certainly better than not seeing any message; not to mention that we
shouldn't assume that only the first failure is interesting.
An additional problem in the same area was that the master failed to
disable SIGPIPE (at least until much too late), which meant that sending a
command to an already-dead worker would cause the master to crash silently.
That was bad enough in itself but was made worse by the total reliance on
the master to print errors: even if the worker had reported an error, you
would probably not see it, depending on timing. Instead disable SIGPIPE
right after we've forked the workers, before attempting to send them
anything.
Additionally, the master relies on seeing socket EOF to realize that a
worker has exited prematurely --- but on Windows, there would be no EOF
since the socket is attached to the process that includes both the master
and worker threads, so it remains open. Make archive_close_connection()
close the worker end of the sockets so that this acts more like the Unix
case. It's not perfect, because if a worker thread exits without going
through exit_nicely() the closures won't happen; but that's not really
supposed to happen.
This has been wrong all along, so back-patch to 9.3 where parallel dump
was introduced.
Report: <2458.1450894615@sss.pgh.pa.us>
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When pulling the list of roles to drop, exclude roles whose names
begin with "pg_" (as we do when we are dumping the roles out to
recreate them).
Also add regression tests to cover pg_dumpall -c and this specific
issue.
Noticed by Rushabh Lathia. Patch by me.
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All of the other tables used in the query in dumpTable(), which is
collecting column-level ACLs, are qualified, so we should be qualifying
the pg_init_privs, the related sub-select against pg_class and the
other queries added by the pg_dump catalog ACLs work.
Also, use ::regclass (or ::pg_catalog.regclass, where appropriate)
instead of using a poorly constructed query to get the OID for various
catalog tables.
Issues identified by Noah and Alvaro, patch by me.
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Michael Paquier
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This was overlooked in commit 473b93287, which introduced DROP ACCESS
METHOD. Although that command is restricted to superusers, we don't want
even superusers dropping the built-in methods; "DROP ACCESS METHOD btree"
in particular is unrecoverable from. Pin these objects in the same way
that other initdb-created objects are pinned.
I chose to bump catversion for this fix. That's not absolutely necessary
perhaps, but it will ensure that no 9.6 production systems are missing
the pin entries.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 17bf3e8564abf600274789fcc90e72532d5e7c05
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Use disallowed instead of reserved, cannot instead of can not, and
double quotes instead of single quotes.
Also add a test to cover the bug which started this discussion.
Per discussion with Tom.
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As with CREATE ROLE, disallow users from specifying initial
superuser names which begin with 'pg_' in initdb.
Per discussion with Tom.
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It emerges that some Perl versions before 5.8.9 have a bug with regexps
that use the /m flag and contain "$". This is the reason why jacana
is still failing on HEAD, and I was able to duplicate the failure on
prairiedog's host. There's no real need for "$" in these patterns,
since they are already matching through the statement-terminating
semicolons (or matching an explicit \n in some cases). So just
remove it.
Note: the reason jacana hasn't actually reported any failures in the
last little while is that the way the pg_dump TAP tests are set up, any
failure of this sort results in echoing the entire pg_dump dump output
to stderr. Since there were about a hundred such failures, that resulted
in a 30MB log file which choked the buildfarm upload script. There is
room for improvement here :-(.
Per off-list discussion with Andrew and Stephen.
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The tmp_check directory needs to be removed by "make clean",
and also ignored by .gitignore.
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This patch essentially reverts commit 4c6780fd17aa43ed, in favor of a much
simpler solution for the case where the new cluster would choose to create
a TOAST table but the old cluster doesn't have one: just don't create a
TOAST table.
The existing code failed in at least two different ways if the situation
arose: (1) ALTER TABLE RESET didn't grab an exclusive lock, so that the
lock sanity check in create_toast_table failed; (2) pg_upgrade did not
provide a pg_type OID for the new toast table, so that the crosscheck in
TypeCreate failed. While both these problems were introduced by later
patches, they show that the hack being used to cause TOAST table creation
is overwhelmingly fragile (and untested). I also note that before the
TypeCreate crosscheck was added, the code would have resulted in assigning
an indeterminate pg_type OID to the toast table, possibly causing a later
OID conflict in that catalog; so that it didn't really work even when
committed.
If we simply don't create a TOAST table, there will only be a problem if
the code tries to store a tuple that's wider than a page, and field
compression isn't sufficient to get it under a page. Given that the TOAST
creation threshold is intended to be about a quarter of a page, it's very
hard to believe that cross-version differences in the do-we-need-a-toast-
table heuristic could result in an observable problem. So let's just
follow the old version's conclusion about whether a TOAST table is needed.
(If we ever do change needs_toast_table() so much that this conclusion
doesn't apply, we can devise a solution at that time, and hopefully do
it in a less klugy way than 4c6780fd17aa43ed did.)
Back-patch to 9.3, like the previous patch.
Discussion: <8110.1462291671@sss.pgh.pa.us>
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Buildfarm member jacana appears to have an issue with running this
test. It's not entirely clear to me why, but rather than try to
fight with it, just disable it for now.
None of the other tests try to write out from psql directly as
this test does, so it seems likely that the rest of the tests will
be fine (as they have been on numerous other systems).
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We need to use a new branch due to the 9.5 addition of bypassrls
when adding in the clause to exclude pg_* roles from being dumped
by pg_dumpall.
Pointed out by Noah, patch by me.
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The Makefile for test_pg_dump shouldn't have a MODULES_big line
because there's no actual compiled bit for that extension. Hopefully
this will fix the Windows buildfarm members which were complaining.
In passing, also add the 'prove_installcheck' bit to the pg_dump and
test_pg_dump Makefiles, to get the buildfarm members to actually run
those tests.
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Ordinarily, pg_upgrade shouldn't have any difficulty in matching up all
the relations it sees in the old and new databases. If it does, however,
it just goes belly-up with a pretty unhelpful error message. That seemed
fine as long as we expected the case never to occur in the wild, but
Alvaro reported that it had been seen in a database whose pg_largeobject
table had somehow acquired a TOAST table. That doesn't quite seem like
a case that pg_upgrade actually needs to handle, but it would be good if
the report were more diagnosable. Hence, extend the logic to print out
as much information as we can about the mismatch(es) before we quit.
In passing, improve the readability of get_rel_infos()'s data collection
query, which had suffered seriously from lets-not-bother-to-update-comments
syndrome, and generally was unnecessarily disrespectful to readers.
It could be argued that this is a bug fix, but given that we have so few
reports, I don't feel a need to back-patch; at least not before this has
baked awhile in HEAD.
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This TAP test suite will create a new cluster, populate it based on
the 'create_sql' values in the '%tests' hash, run all of the runs
defined in the '%pgdump_runs' hash, and then for each test in the
'%tests' hash, compare each run's output the the regular expression
defined for the test under the 'like' and 'unlike' functions, as
appropriate.
While this test suite covers a fair bit of ground (67% of pg_dump.c
and quite a bit of the other files in src/bin/pg_dump), there is
still quite a bit which remains to be added to provide better code
coverage. Still, this is quite a bit better than we had, and has
found a few bugs already (note that the CREATE TRANSFORM test is
commented out, as it is currently failing).
Idea for using the TAP system from Tom, though all of the code is mine.
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Reviewing the cases where we need to LOCK a given table during a dump,
it was pointed out by Tom that we really don't need to LOCK a table if
we are only looking to dump the ACL for it, or certain other
components. After reviewing the queries run for all of the component
pieces, a list of components were determined to not require LOCK'ing
of the table.
This implements a check to avoid LOCK'ing those tables.
Initial complaint from Rushabh Lathia, discussed with Robert and Tom,
the patch is mine.
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Do not try to dump objects which do not have ACLs when only ACLs are
being requested. This results in a significant performance improvement
as we can avoid querying for further information on these objects when
we don't need to.
When limiting the components to dump for an extension, consider what
components have been requested. Initially, we incorrectly hard-coded
the components of the extension objects to dump, which would mean that
we wouldn't dump some components even with they were asked for and in
other cases we would dump components which weren't requested.
Correct defaultACLs to use 'dump_contains' instead of 'dump'. The
defaultACL is considered a member of the namespace and should be
dumped based on the same set of components that the other objects in
the schema are, not based on what we're dumping for the namespace
itself (which might not include ACLs, if the namespace has just the
default or initial ACL).
Use DUMP_COMPONENT_ACL for from-initdb objects, to allow users to
change their ACLs, should they wish to. This just extends what we
are doing for the pg_catalog namespace to objects which are not
members of namespaces.
Due to column ACLs being treated a bit differently from other ACLs
(they are actually reset to NULL when all privileges are revoked),
adjust the query which gathers column-level ACLs to consider all of
the ACL-relevant columns.
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The query to grab the function/aggregate information is now joining
to pg_init_privs, so we can simplify (and correct) the WHERE clause
used to determine if a given function's ACL has changed from the
initial ACL on the function.
Bug found by Noah, patch by me.
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Noted by Fabien Coelho, though this isn't exactly his proposed patch.
(The technique used here is borrowed from the zic sources.)
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The previous coding always stored variable values as strings, doing
conversion on-the-fly when a numeric value was needed or a number was to be
assigned. This was a bit inefficient and risked loss of precision for
floating-point values. The precision aspect had been hacked around by
printing doubles in "%.18e" format, which is ugly and has machine-dependent
results. Instead, arrange to preserve an assigned numeric value in the
original binary numeric format, converting to string only when and if
needed. When we do need to convert a double to string, convert in "%g"
format with DBL_DIG precision, which is the standard way to do it and
produces the least surprising results in most cases.
The implementation supports storing both a string value and a numeric
value for any one variable, with lazy conversion between them. I also
arranged for lazy re-sorting of the variable array when new variables are
added. That was mainly to allow a clean refactoring of putVariable()
into two levels of subroutine, but it may allow us to save a few sorts.
Discussion: <9188.1462475559@sss.pgh.pa.us>
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Commit 8eb6407aaeb6cbd972839e356b436bb698f51cff added support for
editing and showing view definitions, but neglected to account for
view options such as security_barrier and WITH CHECK OPTION which are
not returned by pg_get_viewdef() and so need special handling.
Author: Dean Rasheed
Reviewed-by: Peter Eisentraut
Discussion: http://www.postgresql.org/message-id/CAEZATCWZjCgKRyM-agE0p8ax15j9uyQoF=qew7D2xB6cF76T8A@mail.gmail.com
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Move fmtReloptionsArray() from pg_dump.c to string_utils.c so that it
is available to other frontend code. In particular psql's \ev and \sv
commands need it to handle view reloptions. Also rename the function
to appendReloptionsArray(), which is a more accurate description of
what it does.
Author: Dean Rasheed
Reviewed-by: Peter Eisentraut
Discussion: http://www.postgresql.org/message-id/CAEZATCWZjCgKRyM-agE0p8ax15j9uyQoF=qew7D2xB6cF76T8A@mail.gmail.com
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These functions behave like the backend's least/greatest functions,
not like min/max, so the originally-chosen names invite confusion.
Per discussion, rename to least/greatest.
I also took it upon myself to make them return double if any input is
double. The previous behavior of silently coercing all inputs to int
surely does not meet the principle of least astonishment.
Copy-edit some of the other new functions' documentation, too.
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Adjust the way we detect the locale. As a result the minumum Windows
version supported by VS2015 and later is Windows Vista. Add some tweaks
to remove new compiler warnings. Remove documentation references to the
now obsolete msysGit.
Michael Paquier, somewhat edited by me, reviewed by Christian Ullrich.
Backpatch to 9.5
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forgotten in b6dacc173b6830c515d970698cead9a85663c553
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This was an oversight in commit 41ea0c23761ca108e2f08f6e3151e3cb1f9652a1.
Fabrízio de Royes Mello, per a report from Tushar Ahuja
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In commit 6f0d6a507 I added a duplicate copy of psqlscanslash's identifier
downcasing code, but actually it's not hard to split that out as a callable
subroutine and avoid the duplication.
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\crosstabview interpreted its arguments in an unusual way, including
doing case-insensitive matching of unquoted column names, which is
surely not the right thing. Rip that out in favor of doing something
equivalent to the dequoting/case-folding rules used by other psql
commands. To keep it simple, change the syntax so that the optional
sort column is specified as a separate argument, instead of the
also-quite-unusual syntax that attached it to the colH argument with
a colon.
Also, rework the error messages to be closer to project style.
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As reported by Michael Feld, pg_upgrade'ing an installation having
extensions with operator families that contain just a single operator class
failed to reproduce the extension membership of those operator families.
This caused no immediate ill effects, but would create problems when later
trying to do a plain dump and restore, because the seemingly-not-part-of-
the-extension operator families would appear separately in the pg_dump
output, and then would conflict with the families created by loading the
extension. This has been broken ever since extensions were introduced,
and many of the standard contrib extensions are affected, so it's a bit
astonishing nobody complained before.
The cause of the problem is a perhaps-ill-considered decision to omit
such operator families from pg_dump's output on the grounds that the
CREATE OPERATOR CLASS commands could recreate them, and having explicit
CREATE OPERATOR FAMILY commands would impede loading the dump script into
pre-8.3 servers. Whatever the merits of that decision when 8.3 was being
written, it looks like a poor tradeoff now. We can fix the pg_upgrade
problem simply by removing that code, so that the operator families are
dumped explicitly (and then will be properly made to be part of their
extensions).
Although this fixes the behavior of future pg_upgrade runs, it does nothing
to clean up existing installations that may have improperly-linked operator
families. Given the small number of complaints to date, maybe we don't
need to worry about providing an automated solution for that; anyone who
needs to clean it up can do so with manual "ALTER EXTENSION ADD OPERATOR
FAMILY" commands, or even just ignore the duplicate-opfamily errors they
get during a pg_restore. In any case we need this fix.
Back-patch to all supported branches.
Discussion: <20228.1460575691@sss.pgh.pa.us>
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