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47 Commits

Author SHA1 Message Date
Tom Lane
bedb78d386 Implement sharable row-level locks, and use them for foreign key references 
to eliminate unnecessary deadlocks.  This commit adds SELECT ... FOR SHARE
paralleling SELECT ... FOR UPDATE.  The implementation uses a new SLRU
data structure (managed much like pg_subtrans) to represent multiple-
transaction-ID sets.  When more than one transaction is holding a shared
lock on a particular row, we create a MultiXactId representing that set
of transactions and store its ID in the row's XMAX.  This scheme allows
an effectively unlimited number of row locks, just as we did before,
while not costing any extra overhead except when a shared lock actually
has to be shared.   Still TODO: use the regular lock manager to control
the grant order when multiple backends are waiting for a row lock.

Alvaro Herrera and Tom Lane.
 2005-04-28 21:47:18 +00:00
Bruce Momjian
754b5e1c42 More < and > changes to ampersands. 
8.0.X and HEAD.
 2005-01-22 23:22:19 +00:00
Tom Lane
4e94ea9fc9 More minor updates and copy-editing. 2005-01-04 00:39:53 +00:00
Neil Conway
ec7a6bd9a2 Replace "--" and "---" with "&mdash;" as appropriate, for better-looking 
output.
 2004-11-15 06:32:15 +00:00
Tom Lane
4c5e810fcd Code review for NOWAIT patch: downgrade NOWAIT from fully reserved keyword 
to unreserved keyword, use ereport not elog, assign a separate error code
for 'could not obtain lock' so that applications will be able to detect
that case cleanly.
 2004-10-01 16:40:05 +00:00
Neil Conway
fe9c4420e4 Improve documentation for the newly-added NOWAIT clause of LOCK TABLE. 2004-03-12 00:52:23 +00:00
Tatsuo Ishii
0b86ade1c2 Add NOWAIT option to LOCK command 2004-03-11 01:47:41 +00:00
Neil Conway
e24018728c This patch makes some SGML markup more consistent and makes a small 
improvement to the SSL auth docs.
 2003-12-14 00:05:29 +00:00
PostgreSQL Daemon
969685ad44 $Header: -> $PostgreSQL Changes ... 2003-11-29 19:52:15 +00:00
Bruce Momjian
2a5b6a7c9b This patch fixes a few missed GUC variables that were still upper case, 
makes a few more small improvements to runtime.sgml, and makes some SGML
conventions more consistent.

Neil Conway
 2003-09-11 21:42:20 +00:00
Tom Lane
d4019b7cd3 Remove a bunch of content-free Diagnostics sections, as per previous 
discussion.  (Still have some work to do editing the remainder.)
 2003-09-09 18:28:53 +00:00
Peter Eisentraut
c326d8f4f2 Add/edit index entries. 2003-08-31 17:32:24 +00:00
Peter Eisentraut
20aae3047f Editing of more reference pages. 2003-04-26 23:56:51 +00:00
Peter Eisentraut
bc49968764 Add more appropriate markup. 2002-09-21 18:32:54 +00:00
Tom Lane
606db06f83 Improve manual's discussion of locking and MVCC. 2002-05-30 20:45:18 +00:00
Tom Lane
0c1fe3d2b9 Update SQL-command reference pages for schema features. 2002-04-23 02:07:16 +00:00
Thomas G. Lockhart
c05f29e895 Augment the date/time examples in the User's Guide to reflect the newer 
capabilities of specifying time zones as intervals per SQL9x.
Put refentrytitle contents on the same line as the tag.
 Otherwise, leading whitespace is propagated into the product, which
 (at least) messes up the ToC layout.
Remove (some) docinfo tags containing dates. Best to omit if the dates
 are not accurate; maybe use CVS dates instead or leave them out.
 2002-04-21 19:02:39 +00:00
Tom Lane
1d174c3086 Explain privileges required for LOCK. Minor wordsmithing too. 2002-01-18 01:05:43 +00:00
Thomas G. Lockhart
03a321d214 Use PostgreSQL consistantly throughout docs. Before, usage was split evenly 
between Postgres and PostgreSQL.
 2001-12-08 03:24:40 +00:00
Peter Eisentraut
89a1ea4207 Put some kind of grammatical uniformity in the <refpurpose> lines. 2001-09-03 12:57:50 +00:00
Bruce Momjian
77a69a2ed1 Patch to LOCK multiple tables in one LOCK command. 
Neil Padgett
 2001-08-10 14:30:15 +00:00
Bruce Momjian
d1c9633060 Back out LOCK A,B,C patch at Tom's suggestion. 2001-08-04 22:01:39 +00:00
Bruce Momjian
16365ac75b Add LOCK A,B,C functionality as LOCK A;LOCK B;LOCK C; as agreed. 
Neil Padgett
 2001-08-04 19:39:00 +00:00
Tom Lane
4fe42dfbc3 Add SHARE UPDATE EXCLUSIVE lock mode, coming soon to a VACUUM near you. 
Name chosen per pghackers discussion around 6/22/01.
 2001-07-09 22:18:34 +00:00
Peter Eisentraut
dccfd74935 Refine some things to create better looking man pages. 2000-12-25 23:15:27 +00:00
Bruce Momjian
b32685a999 Add proofreader's changes to docs. 
Fix misspelling of disbursion to dispersion.
 2000-10-05 19:48:34 +00:00
Bruce Momjian
4140085adb spell cleanups 2000-07-22 04:30:27 +00:00
Thomas G. Lockhart
f05ac972c6 Fix markup for terminology. 2000-03-28 14:35:27 +00:00
Bruce Momjian
be0204133c Move LOCK terms down. 2000-03-24 03:57:06 +00:00
Bruce Momjian
853cf66176 Update HISTORY 2000-03-24 01:20:09 +00:00
Bruce Momjian
6d79d6027c >> 5. empty define that results in an empty but terminated line ( ; ) 
easy (maybe dumb) fix for 5 in attachment define.patch

greetings, Andreas
 2000-03-23 23:16:49 +00:00
Bruce Momjian
f8645018bc Back out // compiler flag. 2000-03-23 22:25:36 +00:00
Bruce Momjian
4ddc50dffa Hmm, absolute pathnames for the copy makes sense. I'll whip up that 
patch in a second. Should be sufficent to just make sure the first
character is a '/', right?

Ross J. Reedstrom
 2000-03-23 21:38:58 +00:00
Thomas G. Lockhart
996c52beff Refer to "name", rather than "table" as the replaceable parameter. 
Seems to read better this way...
 1999-10-01 15:26:29 +00:00
Thomas G. Lockhart
a27512e634 Complete merge of all old man page information. 
ecpg reference page still needs formatting.
 1999-07-22 15:09:15 +00:00
Thomas G. Lockhart
a4ac2f458e Fix markup for docbook2man man page generation. 
No big deal; fixed lots of other markup at the same time.
Bigest change: make sure there is no whitespace
 in front of <term> contents.
This will probably help the other output types too.
 1999-07-06 17:16:42 +00:00
Thomas G. Lockhart
3f86238f13 Make minor changes in wording. 
Adjust tags to get a clean build.
 1999-06-09 13:43:42 +00:00
Vadim B. Mikheev
c0b4b42c92 MVCC updation. 1999-06-08 20:01:01 +00:00
Thomas G. Lockhart
ebfbb79f25 Add input parameters for LOCK TABLE. Still needs explanation from Vadim. 
Fix markup.
 1999-06-04 15:50:44 +00:00
Bruce Momjian
f0f416a2d3 Add mention of SHARE ROW EXCLUSIVE mode. 1999-06-04 04:28:54 +00:00
Bruce Momjian
8760d33abb man page cleanup for vadim. 1999-06-04 04:16:11 +00:00
Bruce Momjian
e1ea7cc2e5 Update lock sgml/man/psql help pages. 1999-06-03 19:18:00 +00:00
Thomas G. Lockhart
165b830ea5 Add reference pages on user interface applications. 1999-05-20 05:40:27 +00:00
Thomas G. Lockhart
a75f2d21a8 Clean up to ensure tag completion as required by the newest versions 
of Norm's Modular Style Sheets and jade/docbook.
From Vince Vielhaber <vev@michvhf.com>.
 1998-12-29 02:24:47 +00:00
Thomas G. Lockhart
3d83e28b2b Minor cleanup in markup, especially in the Output section. 1998-10-30 19:34:40 +00:00
Thomas G. Lockhart
f8b6b5f14f Cleanup markup and minor editing to prepare for first release. 1998-09-25 13:42:46 +00:00
Thomas G. Lockhart
e6c1fbab5c Add more new pages. 1998-09-02 03:01:02 +00:00