Commit Graph

39 Commits

Author SHA1 Message Date
Joe Conway dc7d70ea05 Expose control file data via SQL accessible functions.
Add four new SQL accessible functions: pg_control_system(),
pg_control_checkpoint(), pg_control_recovery(), and pg_control_init()
which expose a subset of the control file data.

Along the way move the code to read and validate the control file to
src/common, where it can be shared by the new backend functions
and the original pg_controldata frontend program.

Patch by me, significant input, testing, and review by Michael Paquier.
2016-03-05 11:10:19 -08:00
Joe Conway a5c43b8869 Add new system view, pg_config
Move and refactor the underlying code for the pg_config client
application to src/common in support of sharing it with a new
system information SRF called pg_config() which makes the same
information available via SQL. Additionally wrap the SRF with a
new system view, as called pg_config.

Patch by me with extensive input and review by Michael Paquier
and additional review by Alvaro Herrera.
2016-02-17 09:12:06 -08:00
Simon Riggs 83e176ec18 Separate block sampling functions
Refactoring ahead of tablesample patch

Requested and reviewed by Michael Paquier

Petr Jelinek
2015-05-15 04:02:54 +02:00
Stephen Frost 804b6b6db4 Fix column-privilege leak in error-message paths
While building error messages to return to the user,
BuildIndexValueDescription, ExecBuildSlotValueDescription and
ri_ReportViolation would happily include the entire key or entire row in
the result returned to the user, even if the user didn't have access to
view all of the columns being included.

Instead, include only those columns which the user is providing or which
the user has select rights on.  If the user does not have any rights
to view the table or any of the columns involved then no detail is
provided and a NULL value is returned from BuildIndexValueDescription
and ExecBuildSlotValueDescription.  Note that, for key cases, the user
must have access to all of the columns for the key to be shown; a
partial key will not be returned.

Further, in master only, do not return any data for cases where row
security is enabled on the relation and row security should be applied
for the user.  This required a bit of refactoring and moving of things
around related to RLS- note the addition of utils/misc/rls.c.

Back-patch all the way, as column-level privileges are now in all
supported versions.

This has been assigned CVE-2014-8161, but since the issue and the patch
have already been publicized on pgsql-hackers, there's no point in trying
to hide this commit.
2015-01-28 12:31:30 -05:00
Heikki Linnakangas 955557ddcc Move rbtree.c from src/backend/utils/misc to src/backend/lib.
We have other general-purpose data structures in src/backend/lib, so it
seems like a better home for the red-black tree as well.
2014-12-22 17:52:08 +02:00
Peter Eisentraut 8521d13194 Refactor flex and bison make rules
Numerous flex and bison make rules have appeared in the source tree
over time, and they are all virtually identical, so we can replace
them by pattern rules with some variables for customization.

Users of pgxs will also be able to benefit from this.
2012-10-11 06:57:04 -04:00
Alvaro Herrera f34c68f096 Introduce timeout handling framework
Management of timeouts was getting a little cumbersome; what we
originally had was more than enough back when we were only concerned
about deadlocks and query cancel; however, when we added timeouts for
standby processes, the code got considerably messier.  Since there are
plans to add more complex timeouts, this seems a good time to introduce
a central timeout handling module.

External modules register their timeout handlers during process
initialization, and later enable and disable them as they see fit using
a simple API; timeout.c is in charge of keeping track of which timeouts
are in effect at any time, installing a common SIGALRM signal handler,
and calling setitimer() as appropriate to ensure timely firing of
external handlers.

timeout.c additionally supports pluggable modules to add their own
timeouts, though this capability isn't exercised anywhere yet.

Additionally, as of this commit, walsender processes are aware of
timeouts; we had a preexisting bug there that made those ignore SIGALRM,
thus being subject to unhandled deadlocks, particularly during the
authentication phase.  This has already been fixed in back branches in
commit 0bf8eb2a, which see for more details.

Main author: Zoltán Böszörményi
Some review and cleanup by Álvaro Herrera
Extensive reworking by Tom Lane
2012-07-16 22:55:33 -04:00
Peter Eisentraut fc946c39ae Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
Magnus Hagander 9f2e211386 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
Teodor Sigaev 5209c084a6 Generic implementation of red-black binary tree. It's planned to use in
several places, but for now only GIN uses it during index creation.
Using self-balanced tree greatly speeds up index creation in corner cases
with preordered data.
2010-02-11 14:29:50 +00:00
Peter Eisentraut 234c7ce9f2 Derived files that are shipped in the distribution used to be built in the
source directory even for out-of-tree builds.  They are now alsl built in
the build tree.  This should be more convenient for certain developers'
workflows, and shouldn't really break anything else.
2009-08-28 20:26:19 +00:00
Peter Eisentraut 0474dcb608 Refactor backend makefiles to remove lots of duplicate code 2008-02-19 10:30:09 +00:00
Peter Eisentraut 2cc01004c6 Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
Tom Lane d8b5c95ca8 Remove hard-wired lists of timezone abbreviations in favor of providing
configuration files that can be altered by a DBA.  The australian_timezones
GUC setting disappears, replaced by a timezone_abbreviations setting (set this
to 'Australia' to get the effect of australian_timezones).  The list of zone
names defined by default has undergone a bit of cleanup, too.  Documentation
still needs some work --- in particular, should we fix Table B-4, or just get
rid of it?  Joachim Wieland, with some editorializing by moi.
2006-07-25 03:51:23 +00:00
Tom Lane fb51ad3419 Make all our flex and bison files use %option prefix or %name-prefix
(respectively) to rename yylex and related symbols.  Some were doing
it this way already, while others used not-too-reliable sed hacks in
the Makefiles.  It's all nice and consistent now.
2006-03-07 01:03:12 +00:00
Tom Lane 12992ab37a Separate out the VacRUsage stuff as an independent module, in preparation
for using it for other things besides VACUUM.
2005-10-03 22:52:26 +00:00
Tom Lane 0fc4ecf935 Finish up the flat-files project: get rid of GetRawDatabaseInfo() hack
in favor of looking at the flat file copy of pg_database during backend
startup.  This should finally eliminate the various corner cases in which
backend startup fails unexpectedly because it isn't able to distinguish
live and dead tuples in pg_database.  Simplify locking on pg_database
to be similar to the rules used with pg_shadow and pg_group, and eliminate
FlushRelationBuffers operations that were used only to reduce the odds
of failure of GetRawDatabaseInfo.
initdb forced due to addition of a trigger to pg_database.
2005-02-26 18:43:34 +00:00
PostgreSQL Daemon 969685ad44 $Header: -> $PostgreSQL Changes ... 2003-11-29 19:52:15 +00:00
Tom Lane b700a672fe Add --help-config facility to dump information about GUC parameters
without needing a running backend.  Reorder postgresql.conf.sample
to match new layout of runtime.sgml.  This commit re-adds work lost
in Wednesday's crash.
2003-07-04 16:41:22 +00:00
Tom Lane cab9437a43 Arrange to compile flex output files as inclusions into other files
(usually bison output files), not as standalone files.  This hack
works around flex's insistence on including <stdio.h> before we are
able to include postgres.h; postgres.h will already be read before
the compiler starts to read the flex output file.  Needed for largefile
support on some platforms.
2002-11-01 22:52:34 +00:00
Peter Eisentraut 805e431a38 Add support for VPATH builds, that is, building somewhere else than in the
source directory.  This involves mostly makefiles using $(srcdir) when they
might have used ".".  (Regression tests don't work with this, yet.)

Sort out usage of CPPFLAGS, CFLAGS (and CXXFLAGS).  Add "override" keyword
in most places, to preserve necessary flags even when the user overrode the
flags.
2000-10-20 21:04:27 +00:00
Peter Eisentraut f03fc94e7d New configure test for flex, which recognizes only flex but does so in all
incarnations (I hope). When an acceptable flex version is not found, print
instructive error messages from both configure and the makefiles, so that
users can continue building anyway.
2000-08-28 11:53:23 +00:00
Peter Eisentraut 996832caee Make the location of the Kerberos server key file run time configurable
(rather than compile time). For libpq, even when Kerberos support is
compiled in, the default user name should still fall back to geteuid()
if it can't be determined via the Kerberos system.

A couple of fixes for string type configuration parameters, now that there
is one.
2000-08-25 10:00:35 +00:00
Peter Eisentraut 209aa77d98 New ps display code, works on more platforms.
Install a default configuration file.

Clean up some funny business in the config file code.
2000-06-04 01:44:38 +00:00
Tom Lane 64b4a48ddc Simplify overly-clever Make rule, which evidently confuses at least
some versions of gmake (mine didn't do the right thing, anyway).
2000-06-01 14:52:25 +00:00
Peter Eisentraut 6a68f42648 The heralded `Grand Unified Configuration scheme' (GUC)
That means you can now set your options in either or all of $PGDATA/configuration,
some postmaster option (--enable-fsync=off), or set a SET command. The list of
options is in backend/utils/misc/guc.c, documentation will be written post haste.

pg_options is gone, so is that pq_geqo config file. Also removed were backend -K,
-Q, and -T options (no longer applicable, although -d0 does the same as -Q).

Added to configure an --enable-syslog option.

changed all callers from TPRINTF to elog(DEBUG)
2000-05-31 00:28:42 +00:00
Tom Lane 091126fa28 Generated header files parse.h and fmgroids.h are now copied into
the src/include tree, so that -I backend is no longer necessary anywhere.
Also, clean up some bit rot in contrib tree.
2000-05-29 05:45:56 +00:00
Peter Eisentraut 533d516629 Removed MBFLAGS from makefiles since it's now done in include/config.h. 2000-01-19 02:59:03 +00:00
Bruce Momjian a82f9ffde6 New LDOUT makefile variable for QNX os. 1999-12-13 22:35:27 +00:00
Bruce Momjian 3ffd3d82db Make LD -r as macros that can be changed for QNX. 1999-12-09 19:15:45 +00:00
Marc G. Fournier 7414d61950 From: Massimo Dal Zotto <dz@cs.unitn.it>
> tprintf.patch
>
>       tprintf.patch
>
>       adds functions and macros which implement a conditional trace package
>       with the ability to change flags and numeric options of running
>       backends at runtime.
>       Options/flags can be specified in the command line and/or read from
>       the file pg_options in the data directory.
1998-08-25 21:34:10 +00:00
Marc G. Fournier 5979d73841 From: t-ishii@sra.co.jp
As Bruce mentioned, this is due to the conflict among changes we made.
Included patches should fix the problem(I changed all MB to
MULTIBYTE). Please let me know if you have further problem.

P.S. I did not include pathces to configure and gram.c to save the
file size(configure.in and gram.y modified).
1998-07-26 04:31:41 +00:00
Marc G. Fournier bf00bbb0c4 I really hope that I haven't missed anything in this one...
From: t-ishii@sra.co.jp

Attached are patches to enhance the multi-byte support.  (patches are
against 7/18 snapshot)

* determine encoding at initdb/createdb rather than compile time

Now initdb/createdb has an option to specify the encoding. Also, I
modified the syntax of CREATE DATABASE to accept encoding option. See
README.mb for more details.

For this purpose I have added new column "encoding" to pg_database.
Also pg_attribute and pg_class are changed to catch up the
modification to pg_database.  Actually I haved added pg_database_mb.h,
pg_attribute_mb.h and pg_class_mb.h. These are used only when MB is
enabled. The reason having separate files is I couldn't find a way to
use ifdef or whatever in those files. I have to admit it looks
ugly. No way.

* support for PGCLIENTENCODING when issuing COPY command

commands/copy.c modified.

* support for SQL92 syntax "SET NAMES"

See gram.y.

* support for LATIN2-5
* add UNICODE regression test case
* new test suite for MB

New directory test/mb added.

* clean up source files

Basic idea is to have MB's own subdirectory for easier maintenance.
These are include/mb and backend/utils/mb.
1998-07-24 03:32:46 +00:00
Bruce Momjian 1e801a8f16 Hi,
Attached you'll find a (big) patch that fixes make dep and make
depend in all Makefiles where I found it to be appropriate.

It also removes the dependency in Makefile.global for NAMEDATALEN
and OIDNAMELEN by making backend/catalog/genbki.sh and bin/initdb/initdb.sh
a little smarter.

This no longer requires initdb.sh that is turned into initdb with
a sed script when installing Postgres, hence initdb.sh should be
renamed to initdb (after the patch has been applied :-) )

This patch is against the 6.3 sources, as it took a while to
complete.

Please review and apply,

Cheers,

Jeroen van Vianen
1998-04-06 00:32:26 +00:00
Marc G. Fournier 6e337eef45 Major cleanout of PORTNAME variables from Makefiles...bound to screw up
some of the ports...
1997-12-20 00:29:35 +00:00
Marc G. Fournier 5379b84eff More cleanups. I can now compile without PORTNAME being defined n
Makefile.global.

End result, if all goes well, should allow for much easier porting, since
there will no longer be a concept of a "port".  Most, if not everything,
*should* be determined by configure, or by the compiler itself.  Still
work to be done though :)
1997-12-19 02:09:10 +00:00
Thomas G. Lockhart 8a7f79c83c Add database.c for database initial access info and support. 1997-11-07 07:03:37 +00:00
Marc G. Fournier ce4c0ce1de Some compile failure fixes from Keith Parks <emkxp01@mtcc.demon.co.uk> 1996-11-06 06:52:23 +00:00
Bryan Henderson 763adb5235 Convenience routine for checking superuser status. 1996-11-02 02:06:47 +00:00