Tom Lane [Thu, 5 Feb 2009 01:24:55 +0000 (01:24 +0000)]
Fix an old corner-case error in match_unsorted_outer(): don't consider
the cheapest-total inner path as a new candidate while truncating the
sort key list, if it already matched the full sort key list. This is
too much of a corner case to be worth back-patching, since it's unusual
for the cheapest total path to be sorted, and anyway no real harm is
done (except in JOIN_SEMI/ANTI cases where cost_mergejoin is a bit
broken at the moment). But it wasn't behaving as intended, so fix it.
Noted while examining a test case from Kevin Grittner. This error doesn't
explain his issue, but it does explain why "set enable_seqscan = off"
seemed to reproduce it for me.
Bruce Momjian [Wed, 4 Feb 2009 16:05:50 +0000 (16:05 +0000)]
Update read committed documentation to better explain undesirable
behavior of concurrent commands in cases where rows are being added and
removed from matching query criteria.
Tom Lane [Tue, 3 Feb 2009 00:59:26 +0000 (00:59 +0000)]
Add a failure check for syslogger's use of _beginthreadex(), and remove
unnecessary thread address output parameter, to make this code look more
like that in pg_restore.
Tom Lane [Mon, 2 Feb 2009 20:42:57 +0000 (20:42 +0000)]
Document the longstanding behavior of LIMIT NULL and OFFSET NULL,
per gripe from David Wheeler that this was mentioned nowhere.
In passing, editorialize a bit on the description of the SQL:2008
equivalent syntax.
Tom Lane [Mon, 2 Feb 2009 20:25:38 +0000 (20:25 +0000)]
Fix plpgsql to not treat INSERT INTO as an INTO-variables clause anywhere
in the string, not just at the start. Per bug #4629 from Martin Blazek.
Back-patch to 8.2; prior versions don't have the problem, at least not in
the reported case, because they don't try to recognize INTO in non-SELECT
statements. (IOW, this is really fallout from the RETURNING patch.)
Andrew Dunstan [Mon, 2 Feb 2009 20:07:37 +0000 (20:07 +0000)]
Provide for parallel restoration from a custom format archive. Each data and
post-data step is run in a separate worker child (a thread on Windows, a child
process elsewhere) up to the concurrent number specified by the new pg_restore
command-line --multi-thread | -m switch.
Alvaro Herrera [Mon, 2 Feb 2009 19:31:40 +0000 (19:31 +0000)]
Allow reloption names to have qualifiers, initially supporting a TOAST
qualifier, and add support for this in pg_dump.
This allows TOAST tables to have user-defined fillfactor, and will also
enable us to move the autovacuum parameters to reloptions without taking
away the possibility of setting values for TOAST tables.
Check that connection limit is within valid range. IOW, not < -1.
It's missing in older versions too, but it doesn't seem worth
back-porting. All negative are just harmlessly treated as "no limit", and
tightening the check might even brake an application that relies on it.
Tom Lane [Thu, 29 Jan 2009 19:59:59 +0000 (19:59 +0000)]
Update time zone data files to tzdata release 2009a: introduces Asia/Kathmandu
as the preferred spelling of that zone name, corrects historical DST
information for Switzerland and Cuba.
Tom Lane [Thu, 29 Jan 2009 19:23:42 +0000 (19:23 +0000)]
Replace argument-checking Asserts with regular test-and-elog checks in all
encoding conversion functions. These are not can't-happen cases because
it's possible to create a conversion with the wrong conversion function
for the specified encoding pair. That would lead to an Assert crash in
an Assert-enabled build, or incorrect conversion otherwise, neither of
which is desirable. This would be a DOS issue if production databases
were customarily built with asserts enabled, but fortunately that's not so.
Per an observation by Heikki.
Teodor Sigaev [Wed, 28 Jan 2009 18:31:32 +0000 (18:31 +0000)]
Fix bug with multiple evaluation of tsearch2 compatibility trigger, trigger
data should be restored.
Backpatch only for 8.3 because previous versions haven't such layer.
Magnus Hagander [Wed, 28 Jan 2009 15:06:47 +0000 (15:06 +0000)]
Go over all OpenSSL return values and make sure we compare them
to the documented API value. The previous code got it right as
it's implemented, but accepted too much/too little compared to
the API documentation.
Alvaro Herrera [Mon, 26 Jan 2009 19:41:06 +0000 (19:41 +0000)]
Allow extracting and parsing of reloptions from a bare pg_class tuple, and
refactor the relcache code that used to do that. This allows other callers
(particularly autovacuum) to do the same without necessarily having to open
and lock a table.
Tom Lane [Fri, 23 Jan 2009 19:58:06 +0000 (19:58 +0000)]
Tweak the existing special case for AIX in pg_getaddrinfo_all() to handle
yet another failure case in AIX's getaddrinfo(). Per report and patch
by Andrew Chernow.
Put back fast-path for the case that there's no backup blocks in
RestoreBkpBlocks. Went missing in my recent refactoring patch, as pointed
out by Simon's hot standby patch.
Peter Eisentraut [Thu, 22 Jan 2009 22:27:13 +0000 (22:27 +0000)]
Recreate ecpg_config.h with a stamp file created by config.status, same
way pg_config.h is handled. This avoids reruns of config.status on every
build, if configure has been rerun.
Only skip pages marked as clean in the visibility map, if the last 32
pages were marked as clean as well. The idea is to avoid defeating OS
readahead by skipping a page here and there, and also makes it less likely
that we miss an opportunity to advance relfrozenxid, for the sake of only
a few skipped pages.
Add new SPI_OK_REWRITTEN return code to SPI_execute and friends, for the
case that the command is rewritten into another type of command. The old
behavior to return the command tag of the last executed command was
pretty surprising. In PL/pgSQL, for example, it meant that if a command
was rewritten to a utility statement, FOUND wasn't set at all.
Magnus Hagander [Wed, 21 Jan 2009 10:30:02 +0000 (10:30 +0000)]
Make win32 builds always do SetEnvironmentVariable() when doing putenv().
Also, if linked against other versions than the default MSVCRT library
(for example the MSVC build which links against MSVCRT80), also update
the cache in the default MSVCRT at the same time.
This should fix the issues with setting LC_MESSAGES on the MSVC build.
Original patch from Hiroshi Inoue and Hiroshi Saito, much rewritten
by me.
Add a new option to RestoreBkpBlocks() to indicate if a cleanup lock should
be used instead of the normal exclusive lock, and make WAL redo functions
responsible for calling RestoreBkpBlocks(). They know better what kind of a
lock they need.
At the moment, this just moves things around with no functional change, but
makes the hot standby patch that's under review cleaner.
Peter Eisentraut [Tue, 20 Jan 2009 09:10:20 +0000 (09:10 +0000)]
Revise the permission checking on user mapping DDL commands.
CREATE/ALTER/DROP USER MAPPING are now allowed either by the server owner or
by a user with USAGE privileges for his own user name. This is more or less
what the SQL standard wants anyway (plus "implementation-defined")
Hide information_schema.user_mapping_options.option_value, unless the current
user is the one associated with the user mapping, or is the server owner and
the mapping is for PUBLIC, or is a superuser. This is to protect passwords.
Also, fix a bug in information_schema._pg_foreign_servers, which hid servers
using wrappers where the current user did not have privileges on the wrapper.
The correct behavior is to hide servers where the current user has no
privileges on the server.
Bruce Momjian [Tue, 20 Jan 2009 02:13:42 +0000 (02:13 +0000)]
Make psql \d and \dt consistent for system tables, i.e prevent \d from
showing system tables, make \dS pattern show system table details, and
have \dtS show system and _user_ tables, to be consistent with other \d*
commands.
Peter Eisentraut [Mon, 19 Jan 2009 14:24:13 +0000 (14:24 +0000)]
Avoid regression test cases that fail in locales that sort "v" and "w"
equally (in glibc: et_EE, sv_SE, tk_TM). It turns out that this was
already taken care of previously by select_1.out, which I had forgotten to
update for an unrelated change. But might as well avoid the issue
altogether.
Peter Eisentraut [Mon, 19 Jan 2009 12:02:29 +0000 (12:02 +0000)]
Alter the regression test cases that rely on the sort order of "ch" between
"cg" and "ci". This eliminates a test failure on the following glibc
locales: br_FR, cs_CZ, cy_GB, es_EC, es_US, hsb_DE, ig_NG, ik_CA, sk_SK.
Tom Lane [Sun, 18 Jan 2009 20:44:45 +0000 (20:44 +0000)]
Fix a pg_dump output ordering problem introduced in 8.3 by the addition of
array types for composite types. Although pg_dump understood it wasn't
supposed to dump these array types as separate objects, it must include
them in the dependency ordering analysis, and it was improperly assigning them
the same relatively-high sort priority as regular types. This resulted in
effectively moving composite types and tables up to that same high priority,
which broke any ordering requirements that weren't explicitly enforced by
dependencies. In particular user-defined operator classes, which should come
out before tables, failed to do so. Per report from Brendan Jurd.
In passing, also fix an ill-considered decision to give text search objects
the same sort priority as functions and operators --- the sort result looks
a lot nicer if different object types are kept separate. The recent
foreign-data patch had copied that decision, making the sort ordering even
messier :-(
Peter Eisentraut [Thu, 15 Jan 2009 11:52:55 +0000 (11:52 +0000)]
NLS cleanup in ecpglib
Replace leftover instances of _() by ecpg_gettext(), the latter being the
correct way to refer to the library's message catalog, instead of the one of
the program using the library.
Drop NLS support for ecpg_log(), which is a debugging instrument similar to
elog() in the backend.
We cannot support NLS in the ecpg compatlib, because that requires
ecpg_gettext, which is in ecpglib, which is not a dependency of compatlib. It
doesn't seem worthwhile to worry about this, since the only translatable
string is "out of memory", and gettext probably won't be able to do much
without memory either.
Peter Eisentraut [Wed, 14 Jan 2009 21:28:32 +0000 (21:28 +0000)]
Avoid version-control system directories when creating TAGS. Besides
being wasteful, this can collide with repostory metadata on case-insensitive
file sytems.
Peter Eisentraut [Wed, 14 Jan 2009 21:12:09 +0000 (21:12 +0000)]
Make the columns is_insertable_into and is_updatable behave uniformly
correctly. They are supposed to examine which kinds of rules are present,
which they did in some of the info schema views but not in others.
Remove broken Assertions that failed if a statement executed in PL/pgSQL is
rewritten into another kind of statement, for example if an INSERT is
rewritten into an UPDATE.
Back-patch to 8.3 and 8.2. For HEAD, Tom suggested inventing a new
SPI_OK_REWRITTEN return code, but that's not a backportable solution. I'll
do that as a separate patch, this patch will do as a stopgap measure for HEAD
too in the meanwhile.
Magnus Hagander [Tue, 13 Jan 2009 10:43:21 +0000 (10:43 +0000)]
Remove special-handling of usernames with Kerberos authentication. We will
now always use the system username as the default, and not try to pick it up
from the kerberos ticket.
This fixes the spurious error messages that show up on kerberos-enabled builds
when not actually using kerberos, and puts it in line with how other authentication
methods work.
Alvaro Herrera [Mon, 12 Jan 2009 21:02:15 +0000 (21:02 +0000)]
Simplify the writing of amoptions routines by introducing a convenience
fillRelOptions routine that stores the parsed values in the struct using a
table-based approach. Per Tom suggestion. Also remove the "continue"
in HANDLE_*_RELOPTION macros, which were useless and in spirit they were
assuming too much of how the macros were going to be used. (Note that these
macros are now unused, but the intention is to introduce some usage in a
future autovacuum patch, which is why they weren't completely removed.)
Also, do not call the string validation routine when not validating. It seems
less error-prone this way, per commentary on the amoptions SGML docs.
Tom Lane [Mon, 12 Jan 2009 16:00:41 +0000 (16:00 +0000)]
Tweak order of operations in BitmapHeapNext() to avoid the case of prefetching
the same page we are nanoseconds away from reading for real. There should be
something left to do on the current page before we consider issuing a prefetch.