| Age | Commit message (Collapse) | Author |
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discarded by cache flush while still in use. This is a minimal patch that
just copies the tupdesc anywhere it could be needed across a flush. Applied
to back branches only; Neil Conway is working on a better long-term solution
for HEAD.
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a va_list. Christof Petig's previous patch made this change, but neglected
to update ecpglib/descriptor.c, resulting in a compiler warning (and a
likely runtime crash) on AMD64 and PPC.
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by Magnus Hagander
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prepared statements, per report from David Wheeler.
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our own command (or more generally, xmin = our xact and cmin >= current
command ID) should not be seen as good. Else we may try to update rows
we already updated. This error was inserted last August while fixing the
even bigger problem that the old coding wouldn't see *any* tuples inserted
by our own transaction as good. Per report from Euler Taveira de Oliveira.
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the localtime timezone data) is not overwritten until we know the data
is good. tzload() is capable of failing after having begun modifying
the struct it's pointed at, and in such cases the static data was left
in a corrupt state. Bug does not exist pre-8.0 (since we didn't have
this code then) nor post-8.0 (since we already changed the code to
tzload into local variables initially). Per report from Nick Martens.
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one argument at a time and then inserting the argument into a Python
list via PyList_SetItem(). This "steals" the reference to the argument:
that is, the reference to the new list member is now held by the Python
list itself. This works fine, except if an elog occurs. This causes the
function's PG_CATCH() block to be invoked, which decrements the
reference counts on both the current argument and the list of arguments.
If the elog happens to occur during the second or subsequent iteration
of the loop, the reference count on the current argument will be
decremented twice.
The fix is simple: set the local pointer to the current argument to NULL
immediately after adding it to the argument list. This ensures that the
Py_XDECREF() in the PG_CATCH() block doesn't double-decrement.
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operator names. This is needed when dumping operator definitions that have
COMMUTATOR (or similar) links to operators in other schemas.
Apparently Daniel Whitter is the first person ever to try this :-(
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use it. While it normally has been opened earlier during btree index
build, testing shows that it's possible for the link to be closed again
if an sinval reset occurs while the index is being built.
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an INSERT target list during rule rewriting. Per report from John Supplee.
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rather than elog(FATAL), when there is no more room in ShmemBackendArray.
This is a security issue since too many connection requests arriving close
together could cause the postmaster to shut down, resulting in denial of
service. Reported by Yoshiyuki Asaba, fixed by Magnus Hagander.
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The consequences of overwriting a non-empty page are bad enough that
we should not omit this test in production builds.
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the relation but it finds a pre-existing valid buffer. The buffer does not
correspond to any page known to the kernel, so we *must* do smgrextend to
ensure that the space becomes allocated. The 7.x branches all do this
correctly, but the corner case got lost somewhere during 8.0 bufmgr rewrites.
(My fault no doubt :-( ... I think I assumed that such a buffer must be
not-BM_VALID, which is not so.)
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Back-patch of previous fix in HEAD for plperl-vs-locale issue.
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per http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=343616 via Martin Pitt.
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returning the rowtype it's supposed to return. Per reports from David Niblett
and Michael Fuhr.
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are inconsistent with the rest of the .po files, and apparently cause
problems for Sun's cc. Per report on IRC from "bitvector2".
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===================================================================
RCS file: /Users/neilc/postgres/cvs_root/pgsql/src/pl/plpython/plpython.c,v
retrieving revision 1.67
diff -c -r1.67 plpython.c
*** src/pl/plpython/plpython.c 26 Dec 2005 04:28:48 -0000 1.67
--- src/pl/plpython/plpython.c 29 Dec 2005 16:54:57 -0000
***************
*** 2,8 ****
* plpython.c - python as a procedural language for PostgreSQL
*
* This software is copyright by Andrew Bosma
! * but is really shameless cribbed from pltcl.c by Jan Weick, and
* plperl.c by Mark Hollomon.
*
* The author hereby grants permission to use, copy, modify,
--- 2,8 ----
* plpython.c - python as a procedural language for PostgreSQL
*
* This software is copyright by Andrew Bosma
! * but is really shamelessly cribbed from pltcl.c by Jan Wieck, and
* plperl.c by Mark Hollomon.
*
* The author hereby grants permission to use, copy, modify,
***************
*** 1996,2002 ****
int i,
rv;
PLyPlanObject *plan;
- char *nulls;
MemoryContext oldcontext;
if (list != NULL)
--- 1996,2001 ----
***************
*** 2018,2024 ****
if (nargs != plan->nargs)
{
char *sv;
-
PyObject *so = PyObject_Str(list);
if (!so)
--- 2017,2022 ----
***************
*** 2036,2048 ****
oldcontext = CurrentMemoryContext;
PG_TRY();
{
! nulls = palloc(nargs * sizeof(char));
for (i = 0; i < nargs; i++)
{
PyObject *elem,
*so;
- char *sv;
elem = PySequence_GetItem(list, i);
if (elem != Py_None)
--- 2034,2045 ----
oldcontext = CurrentMemoryContext;
PG_TRY();
{
! char *nulls = palloc(nargs * sizeof(char));
for (i = 0; i < nargs; i++)
{
PyObject *elem,
*so;
elem = PySequence_GetItem(list, i);
if (elem != Py_None)
***************
*** 2051,2070 ****
if (!so)
PLy_elog(ERROR, "function \"%s\" could not execute plan",
PLy_procedure_name(PLy_curr_procedure));
! sv = PyString_AsString(so);
! /*
! * FIXME -- if this elogs, we have Python reference leak
! */
! plan->values[i] =
! FunctionCall3(&(plan->args[i].out.d.typfunc),
! CStringGetDatum(sv),
! ObjectIdGetDatum(plan->args[i].out.d.typioparam),
! Int32GetDatum(-1));
! Py_DECREF(so);
! Py_DECREF(elem);
nulls[i] = ' ';
}
else
--- 2048,2073 ----
if (!so)
PLy_elog(ERROR, "function \"%s\" could not execute plan",
PLy_procedure_name(PLy_curr_procedure));
! Py_DECREF(elem);
! PG_TRY();
! {
! char *sv = PyString_AsString(so);
! plan->values[i] =
! FunctionCall3(&(plan->args[i].out.d.typfunc),
! CStringGetDatum(sv),
! ObjectIdGetDatum(plan->args[i].out.d.typioparam),
! Int32GetDatum(-1));
! }
! PG_CATCH();
! {
! Py_DECREF(so);
! PG_RE_THROW();
! }
! PG_END_TRY();
+ Py_DECREF(so);
nulls[i] = ' ';
}
else
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See:
Subject: [HACKERS] bugs with certain Asian multibyte charsets
From: Tatsuo Ishii <ishii@sraoss.co.jp>
To: pgsql-hackers@postgresql.org
Date: Sat, 24 Dec 2005 18:25:33 +0900 (JST)
for more details.
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differ by more than the last directory component. Instead of insisting
that they match up to the last component, accept whatever common prefix
they have, and try to replace the non-matching part of bin_path with
the non-matching part of target_path in the actual executable's path.
In one way this is tighter than the old code, because it insists on
a match to the part of bin_path we want to substitute for, rather than
blindly stripping one directory component from the executable's path.
Per gripe from Martin Pitt and subsequent discussion.
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equal: if strcoll claims two strings are equal, check it with strcmp, and
sort according to strcmp if not identical. This fixes inconsistent
behavior under glibc's hu_HU locale, and probably under some other locales
as well. Also, take advantage of the now-well-defined behavior to speed up
texteq, textne, bpchareq, bpcharne: they may as well just do a bitwise
comparison and not bother with strcoll at all.
NOTE: affected databases may need to REINDEX indexes on text columns to be
sure they are self-consistent.
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messages, when client attempts to execute these outside a transaction (start
one) or in a failed transaction (reject message, except for COMMIT/ROLLBACK
statements which we can handle). Per report from Francisco Figueiredo Jr.
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This is a back-port of a fix made to markTargetListOrigin() on 2005-04-25.
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error. This probably explains bug #2099 and could also account for
mysterious VACUUM hangups.
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clauses even if it's an outer join. This is a corner case since such
clauses could only arise from weird OUTER JOIN ON conditions, but worth
fixing. Per example from Ron at cheapcomplexdevices.com.
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Per example from Dirk Pirschel.
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Also add a retry for Unixen returning EINTR, which hasn't been reported
as an issue but at least theoretically could be. Patch by Qingqing Zhou,
some minor adjustments by me.
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Michael Fuhr.
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change errno. No reported bugs here, but why take a chance?
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Qingqing Zhou <zhouqq@cs.toronto.edu>.
- Replaced all strdup() calls by ECPGstrdup().
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recursed twice on its first argument, leading to exponential time spent
on a deep nest of COALESCEs ... such as a deeply nested FULL JOIN would
produce. Per report from Matt Carter.
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Backpatch to 8.0.X.
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surprising results when it's some other numeric type. This doesn't solve
the generic problem of surprising implicit casts to text, but it's a
low-impact way of making sure this particular case behaves sanely.
Per gripe from Harald Fuchs and subsequent discussion.
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anything but transaction-exiting commands (ROLLBACK etc). We already rejected
Parse and Execute in such cases, so there seems little point in allowing Bind.
This prevents at least an Assert failure, and probably worse things, since
there's a lot of infrastructure that doesn't work when not in a live
transaction. We can also simplify the Bind logic a bit by rejecting messages
with a nonzero number of parameters, instead of the former kluge to silently
substitute NULL for each parameter. Per bug #2033 from Joel Stevenson.
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to assume that the string pointer passed to set_ps_display is good forever.
There's no need to anyway since ps_status.c itself saves the string, and
we already had an API (get_ps_display) to return it.
I believe this explains Jim Nasby's report of intermittent crashes in
elog.c when %i format code is in use in log_line_prefix.
While at it, repair a previously unnoticed problem: on some platforms such as
Darwin, the string returned by get_ps_display was blank-padded to the maximum
length, meaning that lock.c's attempt to append " waiting" to it never worked.
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so as to avoid performance issues and possible ultimate crash on long
psql scripts. Per Merlin Moncure.
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very narrow window in which SimpleLruReadPage or SimpleLruWritePage could
think that I/O was needed when it wasn't (and indeed the buffer had already
been assigned to another page). This would result in an Assert failure if
Asserts were enabled, and probably in silent data corruption if not.
Reported independently by Jim Nasby and Robert Creager.
I intend a more extensive fix when 8.2 development starts, but this is a
reasonably low-impact patch for the existing branches.
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setting for the regression makefile, allowing Windows users to force locale
settings since Windows does not get its locale from the environment.
Per Petr Jelinek.
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they were added to a group. Also fix visibility of our own changes when
creating the group file. This fixes:
test=> CREATE GROUP g1;
CREATE GROUP
test=> CREATE USER u1 IN GROUP g1;
CREATE USER
test=> \! cat /u/pg/data/global/pg_group
"g1" "u1"
test=> CREATE USER u2 IN GROUP g1;
CREATE USER
test=> \! cat /u/pg/data/global/pg_group
"g1" "u1" "u2"
test=> ALTER USER u2 RENAME TO u3;
ALTER USER
test=> \! cat /u/pg/data/global/pg_group
"g1" "u1" "u3"
[ this code does not exist in CVS head.]
Per report from Dennis Vshivkov
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for an outer join; symptom is bogus error "RIGHT JOIN is only supported with
merge-joinable join conditions". Problem was that select_mergejoin_clauses
did its tests in the wrong order. We need to force left join not right join
for a merge join when there are non-mergeable join clauses; but the test for
this only accounted for mergejoinability of the clause operator, and not
whether the left and right Vars were of the proper relations. Per report
from Jean-Pierre Pelletier.
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since it can take a fair amount of time and this can confuse boot scripts
that expect postmaster.pid to appear quickly. Move initialization of SSL
library and preloaded libraries to after that point, too, just for luck.
Per reports from Tony Caduto and others.
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subquery results.
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of GUC memory doesn't cause us to start emitting a bogus ident string.
Per report from Han Holl. Also some trivial code cleanup in write_syslog.
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