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when handed an invalidly-encoded pattern. The previous coding could get
into an infinite loop if pg_mb2wchar_with_len() returned a zero-length
string after we'd tested for nonempty pattern; which is exactly what it
will do if the string consists only of an incomplete multibyte character.
This led to either an out-of-memory error or a backend crash depending
on platform. Per report from Wiktor Wodecki.
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be catching stderr output, and we are not ourselves the
syslogger. Otherwise, go directly to stderr.
Bug noticed by Tom Lane.
Backpatch as far as 8.0.
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a MIN or MAX aggregate call into an indexscan: the initplan is being made at
the current query nesting level and so we shouldn't increment query_level.
Though usually harmless, this mistake could lead to bogus "plan should not
reference subplan's variable" failures on complex queries. Per bug report
from David Sanchez i Gregori.
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some platforms and possibly a bug. Per report from Stefan and subsequent
discussion.
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Patch from Tom.
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referencing table does not change the tuple's FK column(s), we don't bother
to check the PK table since the constraint was presumably already valid.
However, the check is still necessary if the tuple was inserted by our own
transaction, since in that case the INSERT trigger will conclude it need not
make the check (since its version of the tuple has been deleted). We got this
right for simple cases, but not when the insert and update are in different
subtransactions of the current top-level transaction; in such cases the FK
check would never be made at all. (Hence, problem dates back to 8.0 when
subtransactions were added --- it's actually the subtransaction version of a
bug fixed in 7.3.5.) Fix, and add regression test cases. Report and fix by
Affan Salman.
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based in part on an earlier patch from Trevor Hardcastle, and reviewed
by myself.
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been broken since forever, but was not noticed because people seldom look
at raw parse trees. AFAIK, no impact on users except that debug_print_parse
might fail; but patch it all the way back anyway. Per report from Jeff Ross.
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partition locks in reverse order.
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--enable-debug is used, to avoid complaints about debugging and
optimization being mutually exclusive. Patch from Stefan Kaltenbrunner.
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name. With this patch, it is always possible for the user to qualify a
plpgsql variable name if needed to avoid ambiguity. While there is much more
work to be done in this area, this simple change removes one unnecessary
incompatibility with Oracle. Per discussion.
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int not unsigned int. Third try to get grebe building without warnings...
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nattering about casting away volatile. Losers.
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TAS support are properly declared.
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theoretically vary depending on what the compile-time locale setting is.
Hence, force it to see LC_CTYPE=C to ensure consistent build results.
(It's likely that this makes no difference in practice, since our
specification for "identifier" surely includes both ends of any possible
uppercase/lowercase pair anyway. But it should silence warnings about
ambiguous character classes that are reported by some buildfarm members.)
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sanely if the loop value overflows int32 on the way to the end value.
Avoid useless computation of "SELECT 1" when BY is omitted. Avoid some
type-punning between Datum and int4 that dates from the original coding.
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from old versions of gcc. It's not clear to me that this is really
necessary for correctness, but less warnings are always good.
Per buildfarm results and local testing.
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columns, per my gripe earlier today. Make it look a bit less like
someone's first effort at backend coding.
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unsigned char). Fortunately we still have buildfarm machines that
will flag this. Seems to be new in CVS HEAD, so no backpatch.
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on Cygwin (answer: we don't). Also try to unwind the #ifdef spaghetti
a little bit. Untested but hopefully I didn't break anything.
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add dashes to the start/end of the comment block to try to prevent
this happening in the future.
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define pg_dlsym() as returning a PGFunction pointer, not just any
pointer-to-function. But many are not. Suppress compiler warnings
on platforms that aren't careful by inserting explicit casts at the
two call sites that didn't have a cast already. Per Stefan.
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suppressing Sun Studio compiler warnings. Per Stefan.
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when built on a 64-bit machine. Per buildfarm results extracted by Stefan.
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enabled, because the only Kerberos library supported always contains it.
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such as OpenBSD (possibly all Heimdal).
Stefan Kaltenbrunner
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free function provided in the Kerberos library.
This fixes a very hard to track down heap corruption on windows
when using debug runtimes.
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Per suggestion from Alvaro.
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* use elog not ereport for debug
* fix debug levels for some output
* properly check for memory allocation errors in a couple of missed places
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Documentation still being written, will be committed later.
Henry B. Hotz and Magnus Hagander
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literally, whether quoted or not. Since we allow $ as a character within
identifiers, this behavior is useful, whereas the previous behavior of
treating it as the regexp ending anchor was nearly useless given that the
pattern is automatically anchored anyway. This affects the arguments of
psql's \d commands as well as pg_dump's -n and -t switches. Per discussion.
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the same outputs as stddev_samp() and var_samp() respectively.
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SIGQUIT) will be recognized and processed while waiting for input,
rather than only after something has been typed. Also make SIGQUIT
do the same thing as SIGTERM in single-user mode, ie, do a normal
shutdown and exit. Since it's relatively easy to provoke SIGQUIT
from the keyboard, people may try that instead of control-D, and we'd
rather this leads to orderly shutdown. Per report from Leon Mergen
and subsequent discussion.
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we don't know at that point which relation OID to tell pgstat to forget.
The code was passing the relfilenode, which is incorrect, and could possibly
cause some other relation's stats to be zeroed out. While we could try to
clean this up, it seems much simpler and more reliable to let the next
invocation of pgstat_vacuum_tabstat() fix things; which indeed is how it
worked before I introduced the buggy code into 8.1.3 and later :-(.
Problem noticed by Itagaki Takahiro, fix is per subsequent discussion.
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error message, by using PQconnectionUsedPassword() instead. Someday
we might be able to localize that error message, but not until this
coding technique has disappeared everywhere.
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not OK to include postgres_fe.h into libpq-fe.h, hence declare it as
returning int not bool.
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PGconn. Invent a new libpq connection-status function,
PQconnectionUsedPassword() that returns true if the server
demanded a password during authentication, false otherwise.
This may be useful to clients in general, but is immediately
useful to help plug a privilege escalation path in dblink.
Per list discussion and design proposed by Tom Lane.
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ORDER BY <constant> as redundant. One is that this means query_planner()
has to canonicalize pathkeys even when the query jointree is empty;
the canonicalization was always a no-op in such cases before, but no more.
Also, we have to guard against thinking that a set-returning function is
"constant" for this purpose. Add a couple of regression tests for these
evidently under-tested cases. Per report from Greg Stark and subsequent
experimentation.
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Fixes builds from tarballs where the file is pre-generated.
Yoshiyuki Asaba
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unwarranted liberties with int8 vs float8 values for these types.
Specifically, be sure to apply either hashint8 or hashfloat8 depending
on HAVE_INT64_TIMESTAMP. Per my gripe of even date.
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checkpoint. The comment claimed that we could do this anytime after
setting the checkpoint REDO point, but actually BufferSync is relying
on the assumption that buffers dumped by other backends will be fsync'd
too. So we really could not do it any sooner than we are doing it.
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Sequences and views could previously be renamed using ALTER TABLE, but
this was a repeated source of confusion for users. Update the docs,
and psql tab completion. Patch from David Fetter; various minor fixes
by myself.
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- Prevent the -w option being passed to the postmaster.
- Read the postmaster options file when starting as a Windows service.
Dave Page
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This is a Linux kernel bug that apparently exists in every extant kernel
version: sometimes shmctl() will fail with EIDRM when EINVAL is correct.
We were assuming that EIDRM indicates a possible conflict with pre-existing
backends, and refusing to start the postmaster when this happens. Fortunately,
there does not seem to be any case where Linux can legitimately return EIDRM
(it doesn't track shmem segments in a way that would allow that), so we can
get away with just assuming that EIDRM means EINVAL on this platform.
Per reports from Michael Fuhr and Jon Lapham --- it's a bit surprising
we have not seen more reports, actually.
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