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The function was renamed in 908e23473, but the comment never learned
about it.
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Add a new optional Makefile variable PROVE_TESTS that, if passed as a
space-separated list of paths relative to the Makefile invoking
$(prove_check) or $(prove_installcheck), runs just those tests instead
of t/*.pl .
From: Craig Ringer <craig@2ndquadrant.com>
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Previously, pg_upgrade migrated sequence data like tables by copying the
on-disk file. This does not allow any changes in the on-disk format for
sequences. It's simpler to just have pg_dump set the new sequence
values as it normally does. To do that, create a hidden submode in
pg_dump that dumps sequence data even when a schema-only dump is
requested, and trigger that submode in binary upgrade mode. (This new
submode could easily be exposed as a command-line option, but it has
limited use outside of pg_dump and would probably cause some confusion,
so we don't do that at this time.)
Reviewed-by: Anastasia Lubennikova <a.lubennikova@postgrespro.ru>
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Instead of handling both sequence data and table data internally as
"table data", handle sequences separately under a "sequence set" type.
We already handled materialized view data differently, so it makes the
code somewhat cleaner to handle each relation kind separately at the top
level.
This does not change the output format, since there already was a
separate "SEQUENCE SET" archive entry type. A noticeable difference is
that SEQUENCE SET entries now always appear after TABLE DATA entries.
And in parallel mode there is less sorting to do, because the sequence
data entries are no longer considered table data.
Reviewed-by: Anastasia Lubennikova <a.lubennikova@postgrespro.ru>
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Be sure to pull up the subquery's hasRowSecurity flag when flattening a
subquery in pull_up_simple_subquery(). This isn't a bug today because
we don't look at the hasRowSecurity flag during planning, but it could
easily be a bug tomorrow.
Likewise, make rewriteRuleAction() pull up the hasRowSecurity flag when
absorbing RTEs from a rule action. This isn't a bug either, for the
opposite reason: the flag should never be set yet. But again, it seems
like good future proofing.
Add a comment explaining why rewriteTargetView() should *not* set
hasRowSecurity when adding stuff to securityQuals.
Improve some nearby comments about securityQuals processing, and document
that field more completely in parsenodes.h.
Patch by me, analysis by Dean Rasheed.
Discussion: <CAEZATCXZ8tb2DV6f=bkhsMV6u_gRcZ0CZBw2J-qU84RxSukZog@mail.gmail.com>
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The reloptions stuff allows this option to be set on a matview.
While it's questionable whether that is useful or was really intended,
it does work, and we shouldn't change that in minor releases. Commit
e3e66d8a9 disabled the option since I didn't realize that it was
possible for it to be set on a matview. Tweak the test to re-allow it.
Discussion: <19749.1478711862@sss.pgh.pa.us>
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We just pass the data to the INSTEAD trigger.
Haribabu Kommi, reviewed by Dilip Kumar
Patch: <CAJrrPGcSQkrNkO+4PhLm4B8UQQQmU9YVUuqmtgM=pmzMfxWaWQ@mail.gmail.com>
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The plan generated for sorted partial aggregation with "GROUP BY constant"
included a Sort node with no sort keys, which the executor does not like.
Per report from Steve Randall. I'd add a regression test case if I could
think of a compact one, but it doesn't seem worth expending lots of cycles
on.
Report: <CABVd52UAdGXpg_rCk46egpNKYdXOzCjuJ1zG26E2xBe_8bj+Fg@mail.gmail.com>
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Masahiko Sawada, reviewed by Fabien Coelho and Beena Emerson, with
some a bit of wordsmithing and cosmetic adjustment by me.
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The idea behind SPI_push was to allow transitioning back into an
"unconnected" state when a SPI-using procedure calls unrelated code that
might or might not invoke SPI. That sounds good, but in practice the only
thing it does for us is to catch cases where a called SPI-using function
forgets to call SPI_connect --- which is a highly improbable failure mode,
since it would be exposed immediately by direct testing of said function.
As against that, we've had multiple bugs induced by forgetting to call
SPI_push/SPI_pop around code that might invoke SPI-using functions; these
are much harder to catch and indeed have gone undetected for years in some
cases. And we've had to band-aid around some problems of this ilk by
introducing conditional push/pop pairs in some places, which really kind
of defeats the purpose altogether; if we can't draw bright lines between
connected and unconnected code, what's the point?
Hence, get rid of SPI_push[_conditional], SPI_pop[_conditional], and the
underlying state variable _SPI_curid. It turns out SPI_restore_connection
can go away too, which is a nice side benefit since it was never more than
a kluge. Provide no-op macros for the deleted functions so as to avoid an
API break for external modules.
A side effect of this removal is that SPI_palloc and allied functions no
longer permit being called when unconnected; they'll throw an error
instead. The apparent usefulness of the previous behavior was a mirage
as well, because it was depended on by only a few places (which I fixed in
preceding commits), and it posed a risk of allocations being unexpectedly
long-lived if someone forgot a SPI_push call.
Discussion: <20808.1478481403@sss.pgh.pa.us>
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For ALTER TYPE .. RENAME, add "VALUE" to the list of possible
completions. Complete ALTER TYPE .. RENAME VALUE with possible
enum values. After that, complete with "TO".
Dagfinn Ilmari Mannsåker, reviewed by Artur Zakirov.
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Invent a new function heap_modify_tuple_by_cols() that is functionally
equivalent to SPI_modifytuple except that it always allocates its result
by simple palloc. I chose however to make the API details a bit more
like heap_modify_tuple: pass a tupdesc rather than a Relation, and use
bool convention for the isnull array.
Use this function in place of SPI_modifytuple at all call sites where the
intended behavior is to allocate in current context. (There actually are
only two call sites left that depend on the old behavior, which makes me
wonder if we should just drop this function rather than keep it.)
This new function is easier to use than heap_modify_tuple() for purposes
of replacing a single column (or, really, any fixed number of columns).
There are a number of places where it would simplify the code to change
over, but I resisted that temptation for the moment ... everywhere except
in plpgsql's exec_assign_value(); changing that might offer some small
performance benefit, so I did it.
This is on the way to removing SPI_push/SPI_pop, but it seems like
good code cleanup in its own right.
Discussion: <9633.1478552022@sss.pgh.pa.us>
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Michael Paquier
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There's basically no scenario where it's sensible for this to match
dropped columns, so put a test for dropped-ness into SPI_fnumber()
itself, and excise the test from the small number of callers that
were paying attention to the case. (Most weren't :-(.)
In passing, normalize tests at call sites: always reject attnum <= 0
if we're disallowing system columns. Previously there was a mixture
of "< 0" and "<= 0" tests. This makes no practical difference since
SPI_fnumber() never returns 0, but I'm feeling pedantic today.
Also, in the places that are actually live user-facing code and not
legacy cruft, distinguish "column not found" from "can't handle
system column".
Per discussion with Jim Nasby; thi supersedes his original patch
that just changed the behavior at one call site.
Discussion: <b2de8258-c4c0-1cb8-7b97-e8538e5c975c@BlueTreble.com>
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The intent of the test is to check whether XLOG_SEG_SIZE is in a
particular range, but actually in one case it compares XLOG_BLCKSZ
by mistake. Repair.
Commit 88e982302684246e8af785e78a467ac37c76dee9 introduced this
faulty test.
Kuntal Ghosh, reviewed by Michael Paquier.
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The code here would need some change anyway given planned change in
SPI_modifytuple semantics, since this executes after we've exited the
SPI environment. But really it's better to just use heap_modify_tuple.
While at it, normalize use of SPI_fnumber: make error messages distinguish
no-such-column from can't-set-system-column, and remove test for deleted
column which is going to migrate into SPI_fnumber. The lack of a check
for system column names is actually a pre-existing bug here, and might
even qualify as a security bug except that we don't have any trusted
version of plpython.
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The code here would need some change anyway given planned change in
SPI_modifytuple semantics, since this executes after we've exited the
SPI environment. But really it's better to just use heap_modify_tuple.
The code's actually shorter this way, and this avoids depending on some
rather indirect reasoning about why the temporary arrays can't be overrun.
(I think the old code is safe, as long as Perl hashes can't contain
duplicate keys; but with this way we don't need that assumption, only
the assumption that SPI_fnumber doesn't return an out-of-range attnum.)
While at it, normalize use of SPI_fnumber: make error messages distinguish
no-such-column from can't-set-system-column, and remove test for deleted
column which is going to migrate into SPI_fnumber.
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When squeezing a bucket during vacuum, it's not necessary to retain
any tuples already marked as dead, so ignore them when deciding which
tuples must be moved in order to empty a bucket page. Similarly, when
splitting a bucket, relocating dead tuples to the new bucket is a
waste of effort; instead, just ignore them.
Amit Kapila, reviewed by me. Testing help provided by Ashutosh
Sharma.
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In each case, absence of a trailing newline would itself constitute a
PostgreSQL bug. Therefore, this slightly enhances the changed tests.
This works around a bug that last appeared in Perl 5.8.8, fixing
src/test/modules/test_pg_dump when run against that version. Commit
e7293e3271bf618eeb2d4779a15fc516a69fe463 worked around the bug, but the
subsequent addition of test_pg_dump introduced affected code. As that
commit had shown, slight increases in pattern complexity can suppress
the bug. This commit edits qr/foo$/m patterns too complex to encounter
the bug today, for style consistency and robustness against unrelated
pattern changes. Back-patch to 9.6, where test_pg_dump was introduced.
As of this writing, a fresh MSYS installation includes an affected Perl
5.8.8. The Perl 5.8.8 in Red Hat Enterprise Linux 5.11 carries a patch
that renders it unaffected, but the Perl 5.8.5 of Red Hat Enterprise
Linux 4.4 is affected.
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We really ought to make StdRdOptions and the other decoded forms of
reloptions self-identifying, but for the moment, assume that only plain
relations could possibly be user_catalog_tables. Fixes problem with bogus
"ON CONFLICT is not supported on table ... used as a catalog table" error
when target is a view with cascade option.
Discussion: <26681.1477940227@sss.pgh.pa.us>
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macro."
This reverts commit c8ead2a3974d3eada145a0e18940150039493cc9.
Seems there is no way to do this that doesn't cause MSVC to give
warnings, so let's just go back to the way we've been doing it.
Discussion: <11843.1478358206@sss.pgh.pa.us>
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Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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In pg_log_v(), we need to translate the fmt before processing, not the
formatted message afterwards.
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Use a macro to generate the in and out functions for pseudotypes that
reject all input and output, saving many lines of redundant code.
Parameterize the error messages to reduce translatable strings.
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Meant to do this in 26abb50c4, but forgot.
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Jim Nasby, rather heavily editorialized by me
Patch: <f2134651-14b3-efeb-f274-c69f3c084031@BlueTreble.com>
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Use Tcl_ListObjGetElements instead of Tcl_SplitList. Aside from being
possibly more efficient in its own right, this means we are no longer
responsible for freeing a malloc'd result array, so we can get rid of
a PG_TRY/PG_CATCH block.
Use heap_form_tuple instead of SPI_modifytuple. We don't need the
extra generality of the latter, since we're always replacing all
columns. Nor do we need its memory-context-munging, since at this
point we're already out of the SPI environment.
Per comparison of this code to tuple-building code submitted by Jim Nasby.
I've abandoned the thought of merging the two cases into a single routine,
but we may as well make the older code simpler and faster where we can.
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For a very long time, pltcl's spi_exec and spi_execp commands have had
a behavior of storing the current row number as an element of output
arrays, but this was never documented. Fix that.
For an equally long time, pltcl_trigger_handler had a behavior of silently
ignoring ".tupno" as an output column name, evidently so that the result
of spi_exec could be used directly as a trigger result tuple. Not sure
how useful that really is, but in any case it's bad that it would break
attempts to use ".tupno" as an actual column name. We can fix it by not
checking for ".tupno" until after we check for a column name match. This
comports with the effective behavior of spi_exec[p] that ".tupno" is only
magic when you don't have an actual column named that.
In passing, wordsmith the description of returning modified tuples from
a pltcl trigger.
Noted while working on Jim Nasby's patch to support composite results
from pltcl. The inability to return trigger tuples using ".tupno" as
a column name is a bug, so back-patch to all supported branches.
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We must do this in case the expression evaluation results in calling
another plpgsql function (or, really, anything using SPI). I missed
the need for this when I converted exec_cast_value() from doing a
simple InputFunctionCall() to doing ExecEvalExpr() in commit 1345cc67b.
There is a SPI_push_conditional in InputFunctionCall(), so that there
was no bug before that.
Per bug #14414 from Marcos Castedo. Add a regression test based on his
example, which was that a plpgsql function in a domain check constraint
didn't work when assigning to a domain-type variable within plpgsql.
Report: <20161106010947.1387.66380@wrigleys.postgresql.org>
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Don't fetch record->xl_info before we've verified that record isn't
NULL. Per Coverity.
Michael Paquier
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The workaround the IANA guys chose to get rid of the clang warning
we'd silenced in commit 23ed2ba81 turns out not to satisfy Coverity.
Go back to the previous solution, ie, remove the useless comparison
to SIZE_MAX. (In principle, there could be machines out there where
it's not useless because ptrdiff_t is wider than size_t. But the whole
thing is pretty academic anyway, as we could never approach this limit
for any sane estimate of the amount of data that zic will ever be asked
to work with.)
Also, s/lineno/lineno_t/g, because if we accept their decision to start
using "lineno" as a typedef, it is going to have very unpleasant
consequences in our next pgindent run. Noted that while fooling with
pltcl yesterday.
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Don't ask Tcl_GetIndexFromObj to store an error message in the interpreter
in cases where the next argument isn't necessarily one of the options
we're asking it to check for. At best that is a waste of time, and at
worst it might cause an inappropriate error result to get left behind.
Be sure to check for valid syntax (ie, no command arguments) in
pltcl_SPI_lastoid.
Extracted from a larger and otherwise-unrelated patch.
Jim Nasby
Patch: <f2134651-14b3-efeb-f274-c69f3c084031@BlueTreble.com>
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Commit 7a2fe9bd0 improved merge append so that replacement of a tuple
takes log(N) operations, not twice log(N). Since cost_merge_append knew
about that explicitly, we should adjust it. This probably makes little
difference in practice, but the obsolete comment is confusing.
Ideally this would have been put in in 9.3 with the underlying behavior
change; but I'm not going to back-patch it, since there's some small chance
of changing a plan choice that somebody's optimized for.
Thomas Munro
Discussion: <CAEepm=0WQBSvuYcMOUj4Ga4NXpu2J=ejZcE=e=eiTjTX-6_gDw@mail.gmail.com>
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Seems to be a copy-and-pasteo. Odd that we heard no reports of
compiler warnings about it.
Thomas Munro
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We're passing const strings to it in places, and that's not an
unreasonable thing to do. Per buildfarm (noted on frogmouth
in particular).
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Second try at the change originally made in commit 8518583cd;
this time with contrib updates so that manual extern declarations
are also marked with PGDLLEXPORT. The release notes should point
this out as a significant source-code change for extension authors,
since they'll have to make similar additions to avoid trouble on Windows.
Laurenz Albe, doc change by me
Patch: <A737B7A37273E048B164557ADEF4A58B53962ED8@ntex2010a.host.magwien.gv.at>
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Generally, WAL resource managers are only supposed to examine the
top 4 bits of a WAL record's xl_info; the rest are reserved for
the WAL mechanism itself. A few places were not consistent about
doing this with respect to XLOG_CHECKPOINT and XLOG_SWITCH records.
There's no bug currently, since no additional bits ever get set in
these specific record types, but that might not be true forever.
Let's follow the generic coding rule here too.
Michael Paquier
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This includes support for the new REFERENCING clause.
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This is infrastructure for the complete SQL standard feature. No
support is included at this point for execution nodes or PLs. The
intent is to add that soon.
As this patch leaves things, standard syntax can create tuplestores
to contain old and/or new versions of rows affected by a statement.
References to these tuplestores are in the TriggerData structure.
C triggers can access the tuplestores directly, so they are usable,
but they cannot yet be referenced within a SQL statement.
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Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Also straighten out use of time unit abbreviations a bit.
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
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LockBufferForCleanup() acquires a cleanup lock unconditionally, and
ConditionalLockBufferForCleanup() acquires a cleanup lock if it is
possible to do so without waiting; this patch adds a new API,
IsBufferCleanupOK(), which tests whether an exclusive lock already
held happens to be a cleanup lock. This is possible because a cleanup
lock simply means an exclusive lock plus the assurance any other pins
on the buffer are newer than our own pin. Therefore, just as the
existing functions decide that the exclusive lock that they've just
taken is a cleanup lock if they observe the pin count to be 1, this
new function allows us to observe that the pin count is 1 on a buffer
we've already locked.
This is useful in situations where a backend definitely wishes to
modify the buffer and also wishes to perform cleanup operations if
possible. The patch to eliminate heavyweight locking by hash indexes
uses this, and it may have other applications as well.
Amit Kapila, per a suggestion from me. Some comment adjustments by me
as well.
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This patch absorbs some unreleased fixes for symlink manipulation bugs
introduced in tzcode 2016g. Ordinarily I'd wait around for a released
version, but in this case it seems like we could do with extra testing,
in particular checking whether it works in EDB's VMware build environment.
This corresponds to commit aec59156abbf8472ba201b6c7ca2592f9c10e077 in
https://github.com/eggert/tz.
Per a report from Sandeep Thakkar, building in an environment where hard
links are not supported in the timezone data installation directory failed,
because upstream code refactoring had broken the case of symlinking from an
existing symlink. Further experimentation also showed that the symlinks
were sometimes made incorrectly, with too many or too few "../"'s in the
symlink contents.
This should get back-patched, but first let's see what the buildfarm
makes of it. I'm not too sure about the new dependency on linkat(2).
Report: <CANFyU94_p6mqRQc2i26PFp5QAOQGB++AjGX=FO8LDpXw0GSTjw@mail.gmail.com>
Discussion: http://mm.icann.org/pipermail/tz/2016-November/024431.html
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Make separate columns "Collation", "Nullable", "Default".
Reviewed-by: Kuntal Ghosh <kuntalghosh.2007@gmail.com>
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Suggest the lock modes that begin with the word in question.
Thomas Munro, reviewed by Marllius Ribeiro. Comments tweaked by me.
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It's also possible to specify a separate port for each host.
Previously, we'd loop over every address returned by looking up the
host name; now, we'll try every address for every host name.
Patch by me. Victor Wagner wrote an earlier patch for this feature,
which I read, but I didn't use any of his code. Review by Mithun Cy.
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The foreign-key-aware logic for estimation of join sizes (added in commit
100340e2d) blindly tried to apply the concept to rels that are actually
parents of inheritance trees. This is just plain wrong so far as the
referenced relation is concerned, since the inheritance scan may well
produce lots of rows that are not participating in the constraint. It's
wrong for the referencing relation too, for the same reason; although on
that end we could conceivably detect whether all members of the inheritance
tree have equivalent FK constraints pointing to the same referenced rel,
and then proceed more or less as we do now. But pending somebody writing
code to do that, we must disable this, because it's producing completely
silly estimates when there's an FK linking the heads of inheritance trees.
Per bug #14404 from Clinton Adams. Back-patch to 9.6 where the new
estimation logic came in.
Report: <20161028200412.15987.96482@wrigleys.postgresql.org>
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While converting expressions in an upper-level plan node so that they
reference Vars and expressions provided by the input plan node(s),
don't convert plain Const items, even if there happens to be a matching
Const in the input. It's silly to do so because a Var is more expensive to
execute than a Const. Moreover, converting can fool ExecCheckPlanOutput's
check that an insert or update query inserts nulls into dropped columns,
leading to "query provides a value for a dropped column" errors during
INSERT or UPDATE on a table with a dropped column. We could solve this
by making that check more complicated, but I don't see the point; this fix
should save a marginal number of cycles, and it also makes for less messy
EXPLAIN output, as shown by the ensuing regression test result changes.
Per report from Pavel Hanák. I have not incorporated a test case based
on that example, as there doesn't seem to be a simple way of checking
this in isolation without making a bunch of assumptions about other
planner and SQL-function behavior.
Back-patch to 9.6. This setrefs.c behavior exists much further back,
but there is not currently reason to think that it causes problems
before 9.6.
Discussion: <83shraampf.fsf@is-it.eu>
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