Commit Graph

9694 Commits

Author SHA1 Message Date
Peter Eisentraut
8b2ae44dc8 Update shared memory configuration information for Linux
In particular, the assertion that shmall is sufficiently sized by default
is slowly becoming untrue.
2010-03-13 11:00:19 +00:00
Bruce Momjian
5473df9eb7 Document what user name email symbols are supported by tsearch. 2010-03-13 03:09:04 +00:00
Bruce Momjian
c24b2ef217 Re-add comma, oops. 2010-03-12 23:21:48 +00:00
Bruce Momjian
cb08f6b688 Remove unnecessary comma in documentation. 2010-03-12 17:46:07 +00:00
Tom Lane
8c9a120f6b Preliminary release notes for releases 8.4.3, 8.3.10, 8.2.16, 8.1.20, 8.0.24,
7.4.28.
2010-03-10 01:58:11 +00:00
Magnus Hagander
aa8eed3172 Add missing space in example.
Tim Landscheidt
2010-03-08 12:38:37 +00:00
Magnus Hagander
43d07d63b1 Revert patch for --psqlrc=FILENAME in psql. 2010-03-07 17:02:34 +00:00
Magnus Hagander
66c2cc2ba9 Add --psqlrc=FILENAME parameter to psql, to process an explicitly named
file instead of ~/.psqlrc on startup.
2010-03-06 15:28:09 +00:00
Bruce Momjian
ea066f87c3 Document that "Q" is ignored by to_date and to_timestamp. Add C comment
about the behavior.

Document that quotes in to_date, to_timestamp, to_number skip input
characters.
2010-03-03 22:28:42 +00:00
Bruce Momjian
8b420770b3 Fix SGML markup. 2010-03-03 03:23:12 +00:00
Bruce Momjian
d859b17f0f Restructure CREATE FUNCTION "NOTES" section to be shorter; move items
into proper sections, per suggestion from Tom.
2010-03-03 03:14:08 +00:00
Bruce Momjian
7c55be792b Adjust max_standby_delay documentation to be clearer, and mention that
two adjacent long-running queries have much less than max_standby_delay
before query cancel is possible.
2010-03-02 23:38:17 +00:00
Bruce Momjian
b098dbec0d Document the effect of max_standby_delay on increasing the delay of data
from master to slave, and discourage its use during slave/master
keep-xid-alive connections.
2010-03-02 21:18:59 +00:00
Peter Eisentraut
9393bc62c5 Update keywords list for 9.0 2010-03-02 20:40:48 +00:00
Bruce Momjian
bd7246f65e Update complex locale example in the documentation. 2010-02-28 02:20:40 +00:00
Bruce Momjian
0ff1c3e547 *** empty log message *** 2010-02-28 02:19:47 +00:00
Bruce Momjian
9295eea839 Document ATAPI FLUSH CACHE EXT. 2010-02-27 20:16:17 +00:00
Bruce Momjian
c685b942e5 Document trace_recovery_messages() parameter as an enum, not string.
Fujii Masao
2010-02-27 14:46:05 +00:00
Heikki Linnakangas
7ab9305cc9 Document max_standby_delay=-1 option, now that it's allowed again. 2010-02-27 09:29:20 +00:00
Tom Lane
4ec700a8ec Entity-ify a few new uses of literal <, >, and &. 2010-02-27 04:29:44 +00:00
Bruce Momjian
f7c93458a9 Use <> for libpq #include in example programs, per suggestion from Josh Berkus. 2010-02-27 03:41:34 +00:00
Bruce Momjian
adfb444581 Document ATAPI drive flush command, and mention SSD drives. 2010-02-27 01:39:46 +00:00
Bruce Momjian
ca8e3a51a0 Document pg_restore --jobs as a performance enhancement. 2010-02-26 02:31:52 +00:00
Bruce Momjian
87f609c4fe Remove 'emphasis' markup inside literal; not allowed. 2010-02-26 01:11:46 +00:00
Bruce Momjian
d98039d896 Document that after triggers that need to see changed rows should not be
marked stable.
2010-02-25 22:24:00 +00:00
Bruce Momjian
1951c97805 Document clearly the meaning of none/all for log_statements. 2010-02-25 19:20:38 +00:00
Bruce Momjian
bfd0cd5568 Clearly document that timestamp alone means timestamp without timezone,
per SQL standard, and mention 7.3 behavior at the end.
2010-02-25 18:16:53 +00:00
Magnus Hagander
413d34be4e Add configuration parameter ssl_renegotiation_limit to control
how often we do SSL session key renegotiation. Can be set to
0 to disable renegotiation completely, which is required if
a broken SSL library is used (broken patches to CVE-2009-3555
a known cause) or when using a client library that can't do
renegotiation.
2010-02-25 13:26:16 +00:00
Magnus Hagander
0ccc5153f8 Fix typos, per Richard Huxton 2010-02-25 10:02:30 +00:00
Heikki Linnakangas
0a4807dd93 Clarify that the connection string for primary_conninfo is in the same
format as in PQconnectdb(). As pointed out by Thom Brown.
2010-02-25 09:32:19 +00:00
Heikki Linnakangas
6e11a10c4c Fix typo. 2010-02-25 09:16:42 +00:00
Heikki Linnakangas
7c6c09c039 Small streaming replication document improvements. Be more explicit that
it's asynchronous.
2010-02-25 08:57:47 +00:00
Tom Lane
aed0829c63 Improve warning about creating nested named subroutines in plperl.
Per discussion.
2010-02-25 03:08:07 +00:00
Bruce Momjian
673fb4da02 Document that pg_restore -t can use -n for its schema qualification. 2010-02-24 16:27:40 +00:00
Bruce Momjian
99ef515280 Revert removal of pre-7.4 documenation behavior mentions. 2010-02-24 15:54:31 +00:00
Alvaro Herrera
b5a6a52fba Remove stray semicolon, per report from strk 2010-02-24 14:10:24 +00:00
Bruce Momjian
7bfd95a4a2 Remove pre-7.4 documentaiton mentions, now that 8.0 is the oldest
supported release.
2010-02-24 03:33:49 +00:00
Tom Lane
11b5847058 Add an OR REPLACE option to CREATE LANGUAGE.
This operates in the same way as other CREATE OR REPLACE commands, ie,
it replaces everything but the ownership and ACL lists of an existing
entry, and requires the caller to have owner privileges for that entry.

While modifying an existing language has some use in development scenarios,
in typical usage all the "replaced" values come from pg_pltemplate so there
will be no actual change in the language definition.  The reason for adding
this is mainly to allow programs to ensure that a language exists without
triggering an error if it already does exist.

This commit just adds and documents the new option.  A followon patch
will use it to clean up some unpleasant cases in pg_dump and pg_regress.
2010-02-23 22:51:43 +00:00
Bruce Momjian
edf344a5e3 Revert recent COPY manual change about encoding; add mention of "server". 2010-02-23 21:38:35 +00:00
Tom Lane
1bc8acca25 Clarify statements about tar archive format. 2010-02-23 17:28:09 +00:00
Bruce Momjian
a54803149a Revert recent change of to_char('HH12') handling for intervals; instead
improve documentation, and add C comment.
2010-02-23 16:14:26 +00:00
Bruce Momjian
1180b64075 Make documentation more direct about the handling of COPY files based on
the client encoding.
2010-02-23 05:17:33 +00:00
Bruce Momjian
1379fb052f Document that expression indexes that call functions allow function-level
statistics.
2010-02-23 02:47:27 +00:00
Bruce Momjian
485b19ec3c Update pg_restore documentation to show new pg_restore custom listing
format.

Pavel Golub
2010-02-23 00:21:19 +00:00
Bruce Momjian
752672ced7 Remove long-commented-out paragraph in documentation about function
inheritance in create table, per Andrew Dunstan.
2010-02-22 23:51:40 +00:00
Bruce Momjian
c750cb4bd3 Document that pg_ctl cares about the PGHOST environment variable. 2010-02-22 22:30:10 +00:00
Bruce Momjian
f235c9208d Remove protocol documentation paragraph about environment variable
passing being "covered elsewhere", per Dave Page.
2010-02-22 18:12:04 +00:00
Bruce Momjian
dd1486ccd4 Briefly document in two places that pg_dump and pg_dumpall cannot be
used for continuous archiving.
2010-02-22 17:15:10 +00:00
Heikki Linnakangas
3229db2d42 Move documentation of all recovery.conf option to a new chapter.
They used to be scattered between the "backup and restore" and "streaming
replication" chapters.
2010-02-22 11:47:30 +00:00
Andrew Dunstan
f90a4c5df5 Adjust sample auto-explain output to reflect query text inclusion. 2010-02-20 22:24:29 +00:00
Bruce Momjian
fada4204b9 Make 'include_realm' ordering consistent in the docs, to match recent
doc change.
2010-02-20 21:04:28 +00:00
Bruce Momjian
786e2f6871 Clarify documentation about username mapping when authenticating with
GSSAPI or Kerberos.

Ian Turner
2010-02-20 19:21:14 +00:00
Bruce Momjian
de9ec65431 Document that many solid-state drives have volatile write-back caches. 2010-02-20 18:28:37 +00:00
Simon Riggs
7363021df3 Copy editing of Hot Standby docs. Some clarifications, addition
of missing items and minor edits.
2010-02-20 10:07:27 +00:00
Peter Eisentraut
2f6cf9192c Revert version stamping in wrong branch 2010-02-19 18:42:30 +00:00
Peter Eisentraut
a779afb40c Version stamp 9.0alpha4 2010-02-19 16:03:22 +00:00
Bruce Momjian
f8f0140d73 Document --version and --help options for all client applications (they
all support it).

Per report from Josh Kupershmidt
2010-02-19 14:36:45 +00:00
Bruce Momjian
2f6b4560af First pass over client applications documentation proofreading.
gabrielle
2010-02-19 03:50:03 +00:00
Bruce Momjian
4e3a616355 Remove mention that binary distributions pre-compile the tutorial files. 2010-02-19 01:15:54 +00:00
Peter Eisentraut
1222296768 Preliminary release notes for 9.0alpha4 2010-02-19 00:35:18 +00:00
Bruce Momjian
a70d039104 Hot Standby documentation updates
Greg Smith
2010-02-19 00:15:25 +00:00
Bruce Momjian
9529f4d532 Add missing close tag. 2010-02-18 04:14:38 +00:00
Bruce Momjian
1bee1a3725 Wordsmithing of HS and SR documentation, with some wording improvements
from Erik Rijkers too.
2010-02-18 03:16:09 +00:00
Tom Lane
50a90fac40 Stamp HEAD as 9.0devel, and update various places that were referring to 8.5
(hope I got 'em all).  Per discussion, this release will be 9.0 not 8.5.
2010-02-17 04:19:41 +00:00
Tom Lane
750ff8bdf7 Tweak description of payload parameter. 2010-02-17 00:57:06 +00:00
Tom Lane
d1e027221d Replace the pg_listener-based LISTEN/NOTIFY mechanism with an in-memory queue.
In addition, add support for a "payload" string to be passed along with
each notify event.

This implementation should be significantly more efficient than the old one,
and is also more compatible with Hot Standby usage.  There is not yet any
facility for HS slaves to receive notifications generated on the master,
although such a thing is possible in future.

Joachim Wieland, reviewed by Jeff Davis; also hacked on by me.
2010-02-16 22:34:57 +00:00
Bruce Momjian
813135d8c9 Move log_error_verbosity GUC setting to "What to log" section, and
document the behavior of terse and verbose output options.
2010-02-16 21:35:51 +00:00
Bruce Momjian
70d8a2c29e Honor to_char() "FM" specification in YYY, YY, and Y; it was already
honored by YYYY.  Also document Oracle "toggle" FM behavior.

Per report from Guy Rouillier
2010-02-16 21:18:02 +00:00
Bruce Momjian
aa7e7ae9a6 Have SELECT and CREATE TABLE AS queries return a row count. While this
is invisible in psql, other interfaces, like libpq, make this value
visible.

Boszormenyi Zoltan
2010-02-16 20:58:14 +00:00
Bruce Momjian
93a57c3b57 Clarify documentation on the behavior of unnamed bind queries. 2010-02-16 20:15:14 +00:00
Itagaki Takahiro
3d4a2cea57 Fix synopsis of DO statement. 2010-02-16 00:49:42 +00:00
Itagaki Takahiro
714f279457 Add psql tab completion for DO blocks.
Also adjust documentation of DO.

Patch from David Fetter and subsequent discussion.
2010-02-15 02:55:01 +00:00
Tom Lane
c5d644a867 Ooops, let's get the non-null vs null bit right ... 2010-02-14 01:01:35 +00:00
Tom Lane
a9aad1b868 Document the behavior of STRICT VARIADIC functions. 2010-02-14 00:48:12 +00:00
Bruce Momjian
a5acb7dfb9 Remove tabs from sgml. 2010-02-13 03:38:26 +00:00
Andrew Dunstan
1b04b8f1bc Add plperl.on_plperl_init and plperl.on_plperlu_init settings for language-specific startup. Rename recently added plperl.on_perl_init to plperl.on_init. Also, code cleanup for utf8 hack. Patch from Tim Bunce, reviewed by Alex Hunsaker. 2010-02-12 19:35:25 +00:00
Tom Lane
ec4be2ee68 Extend the set of frame options supported for window functions.
This patch allows the frame to start from CURRENT ROW (in either RANGE or
ROWS mode), and it also adds support for ROWS n PRECEDING and ROWS n FOLLOWING
start and end points.  (RANGE value PRECEDING/FOLLOWING isn't there yet ---
the grammar works, but that's all.)

Hitoshi Harada, reviewed by Pavel Stehule
2010-02-12 17:33:21 +00:00
Heikki Linnakangas
a5348fafd1 Update Hot Standby documentation to reflect the change in the LOG
messages printed at startup. As pointed out by Simon Riggs.
2010-02-12 14:53:22 +00:00
Heikki Linnakangas
1026be15b6 Clean up Streaming Replication documentation a little bit. A lot more
needs to be done, but it's a step forward..
2010-02-12 08:28:44 +00:00
Heikki Linnakangas
8740fe7136 Move "Warm Standby Servers for High Availability" and "Hot Standby"
sections under "High Availability, Load Balancing, and Replication"
chapter. Streaming replication chapter needs a lot more work, but this
commit just moves things around.
2010-02-09 16:50:25 +00:00
Tom Lane
d5768dce10 Create an official API function for C functions to use to check if they are
being called as aggregates, and to get the aggregate transition state memory
context if needed.  Use it instead of poking directly into AggState and
WindowAggState in places that shouldn't know so much.

We should have done this in 8.4, probably, but better late than never.

Revised version of a patch by Hitoshi Harada.
2010-02-08 20:39:52 +00:00
Bruce Momjian
3ab41f02ed Update high availability/replication documentation chart for new hot
standby featureset.
2010-02-08 13:41:06 +00:00
Tom Lane
0a469c8769 Remove old-style VACUUM FULL (which was known for a little while as
VACUUM FULL INPLACE), along with a boatload of subsidiary code and complexity.
Per discussion, the use case for this method of vacuuming is no longer large
enough to justify maintaining it; not to mention that we don't wish to invest
the work that would be needed to make it play nicely with Hot Standby.

Aside from the code directly related to old-style VACUUM FULL, this commit
removes support for certain WAL record types that could only be generated
within VACUUM FULL, redirect-pointer removal in heap_page_prune, and
nontransactional generation of cache invalidation sinval messages (the last
being the sticking point for Hot Standby).

We still have to retain all code that copes with finding HEAP_MOVED_OFF and
HEAP_MOVED_IN flag bits on existing tuples.  This can't be removed as long
as we want to support in-place update from pre-9.0 databases.
2010-02-08 04:33:55 +00:00
Tom Lane
b9b8831ad6 Create a "relation mapping" infrastructure to support changing the relfilenodes
of shared or nailed system catalogs.  This has two key benefits:

* The new CLUSTER-based VACUUM FULL can be applied safely to all catalogs.

* We no longer have to use an unsafe reindex-in-place approach for reindexing
  shared catalogs.

CLUSTER on nailed catalogs now works too, although I left it disabled on
shared catalogs because the resulting pg_index.indisclustered update would
only be visible in one database.

Since reindexing shared system catalogs is now fully transactional and
crash-safe, the former special cases in REINDEX behavior have been removed;
shared catalogs are treated the same as non-shared.

This commit does not do anything about the recently-discussed problem of
deadlocks between VACUUM FULL/CLUSTER on a system catalog and other
concurrent queries; will address that in a separate patch.  As a stopgap,
parallel_schedule has been tweaked to run vacuum.sql by itself, to avoid
such failures during the regression tests.
2010-02-07 20:48:13 +00:00
Bruce Momjian
6ba9b9102a Mention warm and now "hot" standby servers in the high availability docs. 2010-02-05 23:53:22 +00:00
Bruce Momjian
4b113d9cdc Document that archive_timeout will force new WAL files even if a single
checkpoint has happened, and recommend adjusting checkpoint_timeout to
reduce the impact of this.
2010-02-05 23:37:43 +00:00
Bruce Momjian
c1ae9bae7d Previous commit was: Properly document that OVER and WINDOW are Postgres reserved words. 2010-02-05 19:38:21 +00:00
Bruce Momjian
d5c861af6c Previous commit was to have tab checking as part of gmake check. 2010-02-05 19:31:18 +00:00
Bruce Momjian
2a93226f0d *** empty log message *** 2010-02-05 19:28:39 +00:00
Bruce Momjian
ac9f254684 Improve PL/Perl documentation of database access functions.
Alexey Klyukin
2010-02-05 18:11:46 +00:00
Bruce Momjian
cb4bd52ad9 Add SGML 'check-tabs' Makefile rule to check for tabs. 2010-02-05 14:51:50 +00:00
Joe Conway
f419a82c70 Modify recently added PQconnectdbParams() with new argument, expand_dbname.
If expand_dbname is non-zero and dbname contains an = sign, it is taken as
a conninfo string in exactly the same way as if it had been passed to
PQconnectdb. This is equivalent to the way PQsetdbLogin() works, allowing
PQconnectdbParams() to be a complete alternative.

Also improve the way the new function is called from psql and replace a
previously missed call to PQsetdbLogin() in psql. Additionally use
PQconnectdbParams() for pg_dump and friends, and the bin/scripts
command line utilities such as vacuumdb, createdb, etc.

Finally, update the documentation for the new parameter, as well as the
nuances of precedence in cases where key words are repeated or duplicated
in the conninfo string.
2010-02-05 03:09:05 +00:00
Tom Lane
c00353aa6c Three out of four of us like this phrasing better. 2010-02-04 00:19:28 +00:00
Bruce Momjian
73a835eea0 Mention "unquoted" identifiers are case-insensitive. 2010-02-03 22:48:55 +00:00
Bruce Momjian
bf62b1a078 Proofreading improvements for the Administration documentation book. 2010-02-03 17:25:06 +00:00
Heikki Linnakangas
808969d0e7 Add a message type header to the CopyData messages sent from primary
to standby in streaming replication. While we only have one message type
at the moment, adding a message type header makes this easier to extend.
2010-02-03 09:47:19 +00:00
Magnus Hagander
0a27347141 Make RADIUS authentication use pg_getaddrinfo_all() to get address of
the server.

Gets rid of a fairly ugly hack for Solaris, and also provides hostname
and IPV6 support.
2010-02-02 19:09:37 +00:00
Bruce Momjian
1526d4e38f Remove tabs in sgml. 2010-02-01 15:48:35 +00:00
Robert Haas
cccfc4efc4 Minor documentation improvements for new string_agg aggregate. 2010-02-01 15:38:21 +00:00
Simon Riggs
296578feb4 Revoke augmentation of WAL records for btree delete, per discussion. 2010-02-01 13:40:28 +00:00
Itagaki Takahiro
9ea9918e37 Add string_agg aggregate functions. The one argument version concatenates
the input values into a string. The two argument version also does the same
thing, but inserts delimiters between elements.

Original patch by Pavel Stehule, reviewed by David E. Wheeler and me.
2010-02-01 03:14:45 +00:00
Andrew Dunstan
85d67ccd75 Add plperl.on_perl_init setting to provide for initializing the perl library on load. Also, handle END blocks in plperl.
Database access is disallowed during both these operations, although it might be allowed in END blocks in future.

Patch from Tim Bunce.
2010-01-30 01:46:57 +00:00
Simon Riggs
6d2bc0a6cf Augment WAL records for btree delete with GetOldestXmin() to reduce
false positives during Hot Standby conflict processing. Simple
patch to enhance conflict processing, following previous discussions.
Controlled by parameter minimize_standby_conflicts = on | off, with
default off allows measurement of performance impact to see whether
it should be set on all the time.
2010-01-29 18:39:05 +00:00
Robert Haas
d0cfc01823 Allow psql variables to be interpolated with literal or identifier escaping.
Loosely based on a patch by Pavel Stehule.
2010-01-29 17:44:12 +00:00
Andrew Dunstan
7523960d63 Add new make targets "world", "install-world" and "installcheck-world" to build, install and check just about everything.
In addition to everything built installed and tested by all, install and installcheck targets, these build HTML Docs,
build and test contrib, and test PLs and ECPG.
2010-01-28 23:59:52 +00:00
Peter Eisentraut
e7b3349a8a Type table feature
This adds the CREATE TABLE name OF type command, per SQL standard.
2010-01-28 23:21:13 +00:00
Magnus Hagander
083e1b0f27 Add functions to reset the statistics counter for a single table/index or
a single function.
2010-01-28 14:25:41 +00:00
Joe Conway
e3f36838e5 Introduce two new libpq connection functions, PQconnectdbParams and
PQconnectStartParams. These are analogous to PQconnectdb and PQconnectStart
respectively. They differ from the legacy functions in that they accept
two NULL-terminated arrays, keywords and values, rather than conninfo
strings. This avoids the need to build the conninfo string in cases
where it might be inconvenient to do so. Includes documentation.

Also modify psql to utilize PQconnectdbParams rather than PQsetdbLogin.
This allows the new config parameter application_name to be set, which
in turn is displayed in the pg_stat_activity view and included in CSV
log entries. This will also ensure both new functions get regularly
exercised.

Patch by Guillaume Lelarge with review and minor adjustments by
Joe Conway.
2010-01-28 06:28:26 +00:00
Magnus Hagander
ab13d1e925 Fix typo.
Noted by Thom Brown.
2010-01-27 13:03:17 +00:00
Magnus Hagander
b3daac5a9c Add support for RADIUS authentication. 2010-01-27 12:12:00 +00:00
Andrew Dunstan
000416ac32 Fix plperl.sgml errors from recent commit. 2010-01-27 02:55:04 +00:00
Andrew Dunstan
1a7c2f9dea Various small improvements and cleanups for PL/Perl.
- Allow (ineffective) use of 'require' in plperl
    If the required module is not already loaded then it dies.
    So "use strict;" now works in plperl.

- Pre-load the feature module if perl >= 5.10.
    So "use feature :5.10;" now works in plperl.

- Stored procedure subs are now given names.
    The names are not visible in ordinary use, but they make
    tools like Devel::NYTProf and Devel::Cover much more useful.

- Simplified and generalized the subroutine creation code.
    Now one code path for generating sub source code, not four.
    Can generate multiple 'use' statements with specific imports
    (which handles plperl.use_strict currently and can easily
    be extended to handle a plperl.use_feature=':5.12' in future).

- Disallows use of Safe version 2.20 which is broken for PL/Perl.
    http://rt.perl.org/rt3/Ticket/Display.html?id=72068

- Assorted minor optimizations by pre-growing data structures.

Patch from Tim Bunce, reviewed by Alex Hunsaker.
2010-01-26 23:11:56 +00:00
Tom Lane
d879697cd2 Remove the default_do_language parameter, instead making DO use a hardwired
default of "plpgsql".  This is more reasonable than it was when the DO patch
was written, because we have since decided that plpgsql should be installed
by default.  Per discussion, having a parameter for this doesn't seem useful
enough to justify the risk of application breakage if the value is changed
unexpectedly.
2010-01-26 16:33:40 +00:00
Bruce Momjian
d36aa67152 Remove tabs in SGML. 2010-01-26 14:21:29 +00:00
Michael Meskes
96b8d5842c Finally applied patch by Boszormenyi Zoltan <zb@cybertec.at> to add the new features his patches added to the docs. 2010-01-26 09:10:11 +00:00
Peter Eisentraut
fd7673bc4e Make the default pg_hba.conf and pg_ident.conf align at 8-character boundaries
to make it easier to use with tabs.
2010-01-26 06:45:31 +00:00
Tom Lane
9507c8a1db Add get_bit/set_bit functions for bit strings, paralleling those for bytea,
and implement OVERLAY() for bit strings and bytea.

In passing also convert text OVERLAY() to a true built-in, instead of
relying on a SQL function.

Leonardo F, reviewed by Kevin Grittner
2010-01-25 20:55:32 +00:00
Heikki Linnakangas
1d1f425f8d Add note that PREPARE TRANSACTION is for transaction managers, not
regular applications. Also add a comment pointing out that tab-complition
for PREPARE TRANSACTION is missing on purpose.
2010-01-25 18:23:10 +00:00
Magnus Hagander
74f4be6c04 Add missing closing tag. 2010-01-24 14:46:01 +00:00
Simon Riggs
959ac58c04 In HS, Startup process sets SIGALRM when waiting for buffer pin. If
woken by alarm we send SIGUSR1 to all backends requesting that they
check to see if they are blocking Startup process. If so, they throw
ERROR/FATAL as for other conflict resolutions. Deadlock stop gap
removed. max_standby_delay = -1 option removed to prevent deadlock.
2010-01-23 16:37:12 +00:00
Bruce Momjian
4fa69e566c Revert mention that HTML documentation has to be built first.
Now require gmake 3.79.1 or later to build source/sgml.
2010-01-22 22:50:03 +00:00
Robert Haas
a3d8fbf3ae Fix mismatched tags introduced by attribute options patch.
Thanks to Devrim Gunduz for the report.
2010-01-22 17:30:24 +00:00
Robert Haas
76a47c0e74 Replace ALTER TABLE ... SET STATISTICS DISTINCT with a more general mechanism.
Attributes can now have options, just as relations and tablespaces do, and
the reloptions code is used to parse, validate, and store them.  For
simplicity and because these options are not performance critical, we store
them in a separate cache rather than the main relcache.

Thanks to Alex Hunsaker for the review.
2010-01-22 16:40:19 +00:00
Bruce Momjian
9ca0989037 Document that the HTML documentation must be built before the PDF
documentation.
2010-01-22 15:49:29 +00:00
Peter Eisentraut
adb7764030 PL/Python DO handler
Also cleaned up some redundancies between the primary error messages and the
error context in PL/Python.

Hannu Valtonen
2010-01-22 15:45:15 +00:00
Robert Haas
d66679672f Add new escaping functions PQescapeLiteral and PQescapeIdentifier.
PQescapeLiteral is similar to PQescapeStringConn, but it relieves the
caller of the need to know how large the output buffer should be, and
it provides the appropriate quoting (in addition to escaping special
characers within the string).  PQescapeIdentifier provides similar
functionality for escaping identifiers.

Per recent discussion with Tom Lane.
2010-01-21 14:58:53 +00:00
Peter Eisentraut
41a4e45957 Add user-specific .pg_service.conf file
This extends the existing pg_service.conf facility to first look for a
service definition file in the user's home directory.
2010-01-20 21:15:21 +00:00
Robert Haas
62b5c031f6 Fix doc build, which was broken by PL/perl utility functions patch. 2010-01-20 03:37:10 +00:00
Andrew Dunstan
05672e5045 Add utility functions to PLPerl:
quote_literal, quote_nullable, quote_ident,
    encode_bytea, decode_bytea, looks_like_number,
    encode_array_literal, encode_array_constructor.
Split SPI.xs into two - SPI.xs now contains only SPI functions. Remainder
are in new Util.xs.
Some more code and documentation cleanup along the way, as well as
adding some CVS markers to files missing them.

Original patch from Tim Bunce, with a little editing from me.
2010-01-20 01:08:21 +00:00
Robert Haas
5b13d1ff53 Reformat documentation of libpq escaping functions.
Modify the "Escaping Strings for Inclusion in SQL Commands" section
to use a <variablelist> as the preceding and following sections do,
and merge the "Escaping Binary Strings for Inclusion in SQL Commands"
section into it.

This changes only the formatting of these sections, not the content.
It is intended to lay the groundwork for a follow-on patch to add
some new escaping functions, but it makes sense to commit this first,
for clarity.
2010-01-20 00:42:28 +00:00
Magnus Hagander
7e40cdc075 Add pg_stat_reset_shared('bgwriter') to reset the cluster-wide shared
statistics of the bgwriter.

Greg Smith
2010-01-19 14:11:32 +00:00
Tom Lane
4f15699d70 Add pg_table_size() and pg_indexes_size() to provide more user-friendly
wrappers around the pg_relation_size() function.

Bernd Helmle, reviewed by Greg Smith
2010-01-19 05:50:18 +00:00
Tom Lane
309cd7cf18 Add "USING expressions" option to plpgsql's OPEN cursor FOR EXECUTE.
This is the last EXECUTE-like plpgsql statement that was missing
the capability of inserting parameter values via USING.

Pavel Stehule, reviewed by Itagaki Takahiro
2010-01-19 01:35:31 +00:00
Tom Lane
04ef404018 Update SET CONSTRAINTS reference page --- it failed to mention EXCLUDE
constraints and was lacking a couple of other interesting details.
2010-01-18 00:32:21 +00:00
Tom Lane
9a915e596f Improve the handling of SET CONSTRAINTS commands by having them search
pg_constraint before searching pg_trigger.  This allows saner handling of
corner cases; in particular we now say "constraint is not deferrable"
rather than "constraint does not exist" when the command is applied to
a constraint that's inherently non-deferrable.  Per a gripe several months
ago from hubert depesz lubaczewski.

To make this work without breaking user-defined constraint triggers,
we have to add entries for them to pg_constraint.  However, in return
we can remove the pgconstrname column from pg_constraint, which represents
a fairly sizable space savings.  I also replaced the tgisconstraint column
with tgisinternal; the old meaning of tgisconstraint can now be had by
testing for nonzero tgconstraint, while there is no other way to get
the old meaning of nonzero tgconstraint, namely that the trigger was
internally generated rather than being user-created.

In passing, fix an old misstatement in the docs and comments, namely that
pg_trigger.tgdeferrable is exactly redundant with pg_constraint.condeferrable.
Actually, we mark RI action triggers as nondeferrable even when they belong to
a nominally deferrable FK constraint.  The SET CONSTRAINTS code now relies on
that instead of hard-coding a list of exception OIDs.
2010-01-17 22:56:23 +00:00
Magnus Hagander
1db098974c Fix spelling error, noticed by Thomas Shinnick 2010-01-16 20:38:54 +00:00
Heikki Linnakangas
40f908bdcd Introduce Streaming Replication.
This includes two new kinds of postmaster processes, walsenders and
walreceiver. Walreceiver is responsible for connecting to the primary server
and streaming WAL to disk, while walsender runs in the primary server and
streams WAL from disk to the client.

Documentation still needs work, but the basics are there. We will probably
pull the replication section to a new chapter later on, as well as the
sections describing file-based replication. But let's do that as a separate
patch, so that it's easier to see what has been added/changed. This patch
also adds a new section to the chapter about FE/BE protocol, documenting the
protocol used by walsender/walreceivxer.

Bump catalog version because of two new functions,
pg_last_xlog_receive_location() and pg_last_xlog_replay_location(), for
monitoring the progress of replication.

Fujii Masao, with additional hacking by me
2010-01-15 09:19:10 +00:00
Magnus Hagander
b2aab42467 Update MSVC build instructions.
Updated to reflect building with Visual Studio 2008, with just the
Platform SDK, and for 64-bit Windows.
2010-01-12 20:13:32 +00:00
Bruce Momjian
6ce4e4f39b Remove tabs in SGML file. 2010-01-12 02:33:45 +00:00
Tom Lane
d5e0029862 Add some simple support and documentation for using process-specific oom_adj
settings to prevent the postmaster from being OOM-killed on Linux systems.

Alex Hunsaker and Tom Lane
2010-01-11 18:39:32 +00:00
Simon Riggs
f537e7dfa4 Docs for behaviour change of drop database during Hot Standby
Adding missing docs for previous Hot Standby patch.
2010-01-10 16:27:27 +00:00
Magnus Hagander
48eaa34d44 Update Windows installation notes.
pginstaller isn't used anymore, in favor of the one-click installers.
Make it clear that we support Windows 2000 and newer with the native
port, instead of first saying we support NT4 and then saying we don't.
2010-01-10 15:54:11 +00:00
Robert Haas
8b9fa7a93a Document pg_tablespace.spcoptions.
This should have been part of the original tablespace-options patch, but I
overlooked the need to update this portion of the documentation.
2010-01-10 01:23:08 +00:00
Andrew Dunstan
a2b34b16be Tidy up and refactor plperl.c.
- Changed MULTIPLICITY check from runtime to compiletime.
    No loads the large Config module.
- Changed plperl_init_interp() to return new interp
    and not alter the global interp_state
- Moved plperl_safe_init() call into check_interp().
- Removed plperl_safe_init_done state variable
    as interp_state now covers that role.
- Changed plperl_create_sub() to take a plperl_proc_desc argument.
- Simplified return value handling in plperl_create_sub.
- Changed perl.com link in the docs to perl.org and tweaked
    wording to clarify that require, not use, is what's blocked.
- Moved perl code in large multi-line C string literal macros
    out to plc_*.pl files.
- Added a test2macro.pl utility to convert the plc_*.pl files to
    macros in a perlchunks.h file which is #included
- Simplifed plperl_safe_init() slightly
- Optimized pg_verifymbstr calls to avoid unneeded strlen()s.

Patch from Tim Bunce, with minor editing from me.
2010-01-09 02:40:50 +00:00
Itagaki Takahiro
8964dbd51e Add buffer access counters to pg_stat_statements.
This uses the same infrastructure with EXPLAIN BUFFERS to support
{shared|local}_blks_{hit|read|written} andtemp_blks_{read|written}
columns in the pg_stat_statements view. The dumped file format
also updated.

Thanks to Robert Haas for the review.
2010-01-08 00:38:20 +00:00
Bruce Momjian
6fb791199d Use -Z for vacuumdb --analyze-only, rather than -o. 2010-01-07 14:35:44 +00:00
Bruce Momjian
1a8d4c9277 Rename new vacuumdb option to --analyze-only from --only-analyze. 2010-01-07 12:38:55 +00:00
Tom Lane
f883e2007a Fix missing <manvolnum> markers in dblink reference entries.
Silences complaints from "make man", and allows these man pages
to be included in man3/.
2010-01-06 19:07:05 +00:00
Itagaki Takahiro
946cf229e8 Support rewritten-based full vacuum as VACUUM FULL. Traditional
VACUUM FULL was renamed to VACUUM FULL INPLACE. Also added a new
option -i, --inplace for vacuumdb to perform FULL INPLACE vacuuming.

Since the new VACUUM FULL uses CLUSTER infrastructure, we cannot
use it for system tables. VACUUM FULL for system tables always
fall back into VACUUM FULL INPLACE silently.

Itagaki Takahiro, reviewed by Jeff Davis and Simon Riggs.
2010-01-06 05:31:14 +00:00
Bruce Momjian
3ccb97b2e4 pg_dump --only-analyze
Implement pg_dump --only-analyze for use by pg_migrator to only analyze
all databases.
2010-01-06 02:59:46 +00:00
Bruce Momjian
8cdb85b512 Remove tabs in SGML.
Move OIDCHARS to proper include file.
2010-01-06 02:41:37 +00:00
Robert Haas
d86d51a958 Support ALTER TABLESPACE name SET/RESET ( tablespace_options ).
This patch only supports seq_page_cost and random_page_cost as parameters,
but it provides the infrastructure to scalably support many more.
In particular, we may want to add support for effective_io_concurrency,
but I'm leaving that as future work for now.

Thanks to Tom Lane for design help and Alvaro Herrera for the review.
2010-01-05 21:54:00 +00:00
Tom Lane
64737e9313 Get rid of the need for manual maintenance of the initial contents of
pg_attribute, by having genbki.pl derive the information from the various
catalog header files.  This greatly simplifies modification of the
"bootstrapped" catalogs.

This patch finally kills genbki.sh and Gen_fmgrtab.sh; we now rely entirely on
Perl scripts for those build steps.  To avoid creating a Perl build dependency
where there was not one before, the output files generated by these scripts
are now treated as distprep targets, ie, they will be built and shipped in
tarballs.  But you will need a reasonably modern Perl (probably at least
5.6) if you want to build from a CVS pull.

The changes to the MSVC build process are untested, and may well break ---
we'll soon find out from the buildfarm.

John Naylor, based on ideas from Robert Haas and others
2010-01-05 01:06:57 +00:00
Tom Lane
4c5b4c8bd0 Improve PGXS makefile system to allow the module's makefile to specify
where to install DATA and DOCS files.  This is mainly intended to allow
versioned installation, eg, install into contrib/fooM.N/ rather than
directly into contrib/.

Mark Cave-Ayland
2010-01-04 16:34:11 +00:00
Bruce Momjian
0239800893 Update copyright for the year 2010. 2010-01-02 16:58:17 +00:00
Tom Lane
29c4ad9829 Support "x IS NOT NULL" clauses as indexscan conditions. This turns out
to be just a minor extension of the previous patch that made "x IS NULL"
indexable, because we can treat the IS NOT NULL condition as if it were
"x < NULL" or "x > NULL" (depending on the index's NULLS FIRST/LAST option),
just like IS NULL is treated like "x = NULL".  Aside from any possible
usefulness in its own right, this is an important improvement for
index-optimized MAX/MIN aggregates: it is now reliably possible to get
a column's min or max value cheaply, even when there are a lot of nulls
cluttering the interesting end of the index.
2010-01-01 21:53:49 +00:00
Peter Eisentraut
c584d11bb3 Add information_schema.triggered_update_columns
This reflects the recently added support for triggers on columns.
2009-12-31 14:41:23 +00:00
Peter Eisentraut
3c505ef577 Fill in information schema column for trigger WHEN condition 2009-12-30 22:48:10 +00:00
Peter Eisentraut
ab1725d50b Revert makefile refactoring (version 1.123) because it doesn't work
when building several files at once (e.g.,
gmake postgres-A4.pdf postgres-US.pdf).
2009-12-30 13:48:52 +00:00
Tom Lane
649b5ec7c8 Add the ability to store inheritance-tree statistics in pg_statistic,
and teach ANALYZE to compute such stats for tables that have subclasses.
Per my proposal of yesterday.

autovacuum still needs to be taught about running ANALYZE on parent tables
when their subclasses change, but the feature is useful even without that.
2009-12-29 20:11:45 +00:00
Peter Eisentraut
50ef9f7b06 Small wording improvement and clarification in PL/pgSQL trigger documentation 2009-12-28 19:11:51 +00:00
Bruce Momjian
1fd9883ff4 Zero-label enums:
Allow enums to be created with zero labels, for use during binary upgrade.
2009-12-26 16:55:21 +00:00
Robert Haas
666c845c75 Add missing <indexterm><primary>...</primary>...</indexterm> tags for a couple
of HS-related parameters.

Fujii Masao
2009-12-25 01:09:31 +00:00
Tom Lane
5b7d2a9465 Try to improve the clarity of the psql documentation for the \d family of
commands, as per recent discussion.  Includes suggestions from Adrian Klaver
and Filip Rembialkowski.
2009-12-24 23:36:39 +00:00
Tom Lane
d68e08d1fe Allow the index name to be omitted in CREATE INDEX, causing the system to
choose an index name the same as it would do for an unnamed index constraint.
(My recent changes to the index naming logic have helped to ensure that this
will be a reasonable choice.)  Per a suggestion from Peter.

A necessary side-effect is to promote CONCURRENTLY to type_func_name_keyword
status, ie, it can't be a table/column/index name anymore unless quoted.
This is not all bad, since we have heard more than once of people typing
CREATE INDEX CONCURRENTLY ON foo (...) and getting a normal index build of
an index named "concurrently", which was not what they wanted.  Now this
syntax will result in a concurrent build of an index with system-chosen
name; which they can rename afterwards if they want something else.
2009-12-23 17:41:45 +00:00
Heikki Linnakangas
4e766f2d17 Always pass catalog id to the options validator function specified in
CREATE FOREIGN DATA WRAPPER. Arguably it wasn't a bug because the
documentation said that it's passed the catalog ID or zero, but surely
we should provide it when it's known. And there isn't currently any
scenario where it's not known, and I can't imagine having one in the
future either, so better remove the "or zero" escape hatch and always
pass a valid catalog ID. Backpatch to 8.4.

Martin Pihlak
2009-12-23 12:23:59 +00:00
Robert Haas
7d672e1e1d Fix two small typos in Hot Standby docs.
John Naylor
2009-12-20 03:49:58 +00:00
Peter Eisentraut
8f649c9ac4 Add documentation why reassigning PL/Python function parameters in the
function body can have undesirable outcomes. (bug #5232)
2009-12-19 22:23:21 +00:00
Peter Eisentraut
16dc6f0cf2 Add hot standby to release notes 2009-12-19 20:33:12 +00:00
Bruce Momjian
7ba1f8fcb5 Convert tabs to spaces in SGML. 2009-12-19 17:49:50 +00:00
Tom Lane
0e9c1b1c99 Sigh, I managed to break the no-links-in-plain-text-docs rule too... 2009-12-19 05:37:01 +00:00
Itagaki Takahiro
50b5bec485 Add missing Id keyword to alter_large_object.sgml. 2009-12-19 03:29:28 +00:00
Tom Lane
d2903637b8 Join in the fun of editorializing on the alpha release notes. 2009-12-19 02:38:54 +00:00
Alvaro Herrera
40ee42b447 Update tutorial on the fact that backslash commands are no longer listed in
psql's startup banner.
2009-12-19 02:34:17 +00:00
Tom Lane
c43d26c1af Adjust some more places in the documentation to match the fact that
plpgsql is now installed by default.
2009-12-19 01:49:02 +00:00
Simon Riggs
efc16ea520 Allow read only connections during recovery, known as Hot Standby.
Enabled by recovery_connections = on (default) and forcing archive recovery using a recovery.conf. Recovery processing now emulates the original transactions as they are replayed, providing full locking and MVCC behaviour for read only queries. Recovery must enter consistent state before connections are allowed, so there is a delay, typically short, before connections succeed. Replay of recovering transactions can conflict and in some cases deadlock with queries during recovery; these result in query cancellation after max_standby_delay seconds have expired. Infrastructure changes have minor effects on normal running, though introduce four new types of WAL record.

New test mode "make standbycheck" allows regression tests of static command behaviour on a standby server while in recovery. Typical and extreme dynamic behaviours have been checked via code inspection and manual testing. Few port specific behaviours have been utilised, though primary testing has been on Linux only so far.

This commit is the basic patch. Additional changes will follow in this release to enhance some aspects of behaviour, notably improved handling of conflicts, deadlock detection and query cancellation. Changes to VACUUM FULL are also required.

Simon Riggs, with significant and lengthy review by Heikki Linnakangas, including streamlined redesign of snapshot creation and two-phase commit.

Important contributions from Florian Pflug, Mark Kirkwood, Merlin Moncure, Greg Stark, Gianni Ciolli, Gabriele Bartolini, Hannu Krosing, Robert Haas, Tatsuo Ishii, Hiroyuki Yamada plus support and feedback from many other community members.
2009-12-19 01:32:45 +00:00
Robert Haas
2e9468f2c8 Fix a few typos in the latest 8.5alpha3 release notes. 2009-12-19 00:05:27 +00:00
Peter Eisentraut
2692274dd9 8.5alpha3 release notes up to Fri Dec 18 21:37:38 2009 +0000 2009-12-18 22:11:09 +00:00
Tom Lane
b35b16e696 Fix link that doesn't work in standalone INSTALL document. 2009-12-18 21:37:38 +00:00
Bruce Momjian
96c102fe27 Install server-side language PL/pgSQL by default. 2009-12-18 21:28:42 +00:00
Robert Haas
f5fd651e1b Improve documentation for pg_largeobject changes.
Rewrite the documentation in more idiomatic English, and in the process make
it somewhat more succinct.  Move the discussion of specific large object
privileges out of the "server-side functions" section, where it certainly
doesn't belong, and into "implementation features".  That might not be
exactly right either, but it doesn't seem worth creating a new section for
this amount of information. Fix a few spelling and layout problems, too.
2009-12-17 14:36:16 +00:00
Magnus Hagander
3dfe7e8e0f Remove spurious '22' that clearly shouldn't be there.
David E. Wheeler
2009-12-16 19:38:54 +00:00
Peter Eisentraut
dd4cd55c15 Python 3 support in PL/Python
Behaves more or less unchanged compared to Python 2, but the new language
variant is called plpython3u.  Documentation describing the naming scheme
is included.
2009-12-15 22:59:55 +00:00
Tom Lane
a5495cd841 Add a hook to let loadable modules get control at ProcessUtility execution,
and use it to extend contrib/pg_stat_statements to track utility commands.

Itagaki Takahiro, reviewed by Euler Taveira de Oliveira.
2009-12-15 20:04:49 +00:00
Tom Lane
34d26872ed Support ORDER BY within aggregate function calls, at long last providing a
non-kluge method for controlling the order in which values are fed to an
aggregate function.  At the same time eliminate the old implementation
restriction that DISTINCT was only supported for single-argument aggregates.

Possibly release-notable behavioral change: formerly, agg(DISTINCT x)
dropped null values of x unconditionally.  Now, it does so only if the
agg transition function is strict; otherwise nulls are treated as DISTINCT
normally would, ie, you get one copy.

Andrew Gierth, reviewed by Hitoshi Harada
2009-12-15 17:57:48 +00:00
Tom Lane
6a6efb9640 Fix broken markup. 2009-12-15 15:59:57 +00:00
Itagaki Takahiro
7d67e06297 Add \shell and \setshell meta commands to pgbench.
\shell command runs an external shell command.
\setshell also does the same and sets the result to a variable.

original patch by Michael Paquier with some editorialization by Itagaki,
and reviewed by Greg Smith.
2009-12-15 07:17:57 +00:00
Robert Haas
cddca5ec13 Add an EXPLAIN (BUFFERS) option to show buffer-usage statistics.
This patch also removes buffer-usage statistics from the track_counts
output, since this (or the global server statistics) is deemed to be a better
interface to this information.

Itagaki Takahiro, reviewed by Euler Taveira de Oliveira.
2009-12-15 04:57:48 +00:00
Magnus Hagander
0182d6f646 Allow LDAP authentication to operate in search+bind mode, meaning it
does a search for the user in the directory first, and then binds with
the DN found for this user.

This allows for LDAP logins in scenarios where the DN of the user cannot
be determined simply by prefix and suffix, such as the case where different
users are located in different containers.

The old way of authentication can be significantly faster, so it's kept
as an option.

Robert Fleming and Magnus Hagander
2009-12-12 21:35:21 +00:00
Itagaki Takahiro
f1325ce213 Add large object access control.
A new system catalog pg_largeobject_metadata manages
ownership and access privileges of large objects.

KaiGai Kohei, reviewed by Jaime Casanova.
2009-12-11 03:34:57 +00:00
Andrew Dunstan
324385d67f Add YAML to list of EXPLAIN formats. Greg Sabino Mullane, reviewed by Takahiro Itagaki. 2009-12-11 01:33:35 +00:00
Peter Eisentraut
db7386187f PL/Python array support
Support arrays as parameters and return values of PL/Python functions.
2009-12-10 20:43:40 +00:00
Peter Eisentraut
a37b001b80 Add init[db] option to pg_ctl
pg_ctl gets a new mode that runs initdb.  Adjust the documentation a bit to
not assume that initdb is the only way to run database cluster initialization.
But don't replace initdb as the canonical way.

Author: Zdenek Kotala <Zdenek.Kotala@Sun.COM>
2009-12-10 06:32:28 +00:00
Tom Lane
03d7b0647f Update release notes for releases 8.4.2, 8.3.9, 8.2.15, 8.1.19, 8.0.23,
7.4.27.
2009-12-10 00:31:14 +00:00
Magnus Hagander
2367d6893f Update size references in installation instructions to be a bit
more up-to-date with current versions.
2009-12-09 16:16:34 +00:00
Magnus Hagander
28519de02d Fix a couple of broken links to third-party sites. 2009-12-08 20:08:30 +00:00
Magnus Hagander
ac1b614cc0 Replace broken link to custom local gettext package with one to the main
GNU site for gettext.
2009-12-08 19:22:43 +00:00
Magnus Hagander
8df283d25a Update CVS documentation to be more current and add documentation about
git mirror.

Remove information about cvsup and documentation that's more about cvs
than our use of cvs.

Backpatch to 8.4 so we get the git information up on the website as
soon as possible.
2009-12-07 19:19:56 +00:00
Tom Lane
0cb65564e5 Add exclusion constraints, which generalize the concept of uniqueness to
support any indexable commutative operator, not just equality.  Two rows
violate the exclusion constraint if "row1.col OP row2.col" is TRUE for
each of the columns in the constraint.

Jeff Davis, reviewed by Robert Haas
2009-12-07 05:22:23 +00:00
Peter Eisentraut
636bac6e46 Information schema documentation
Add a sentence of documentation about the differences between the
*_privileges and the role_*_grants views.
2009-12-05 21:31:05 +00:00
Tom Lane
dc588058a0 Clarify what's supposed to happen when a cursor FETCH is rolled back
by aborting a subtransaction.  Per discussion with Heikki.
2009-12-02 21:11:12 +00:00
Bruce Momjian
8c1c2e38f6 thread-safety
Apply full patch to enable thread-safety by default, e.g. doc changes.
2009-12-02 14:07:26 +00:00
Tom Lane
59ed94ad0c Mark application_name as GUC_REPORT so that the value will be reported back
to the client by the server.  This might seem pretty pointless but apparently
it will help pgbouncer, and perhaps other connection poolers.  Anyway it's
practically free to do so for the normal use-case where appname is only set
in the startup packet --- we're just adding a few more bytes to the initial
ParameterStatus response packet.  Per comments from Marko Kreen.
2009-12-02 04:54:10 +00:00
Bruce Momjian
ef51395e24 Revert due to Tom's concerns:
Add ProcessUtility_hook() to handle all DDL to
contrib/pg_stat_statements.
2009-12-01 02:31:13 +00:00
Bruce Momjian
d85cb27293 ProcessUtility_hook:
Add ProcessUtility_hook() to handle all DDL to contrib/pg_stat_statements.

Itagaki Takahiro
2009-12-01 01:08:46 +00:00
Bruce Momjian
29fd97d982 hstore docs
Update hstore docs, mostly word-smithing.

David E. Wheeler
2009-11-30 17:56:09 +00:00
Peter Eisentraut
bb1e8bea02 In SRF example, move oldcontext variable definition into the FIRSTCALL
branch, which is how most actual code is actually structured.  Also fix
slight whitespace misalignment.
2009-11-30 15:49:35 +00:00
Bruce Momjian
be64b3edd1 Properly indent SGML. 2009-11-30 14:47:37 +00:00
Tom Lane
0c61cff57a Make pg_stat_activity.application_name visible to all users, rather than
being hidden when current_query is.  Relocate it to a column position
more consistent with that behavior.  Per discussion.
2009-11-29 18:14:32 +00:00
Tom Lane
42b2907d12 Add support for anonymous code blocks (DO blocks) to PL/Perl.
Joshua Tolley, reviewed by Brendan Jurd and Tim Bunce
2009-11-29 03:02:27 +00:00
Tom Lane
8217cfbd99 Add support for an application_name parameter, which is displayed in
pg_stat_activity and recorded in log entries.

Dave Page, reviewed by Andres Freund
2009-11-28 23:38:08 +00:00
Bruce Momjian
cb98f61538 fsync test tools
Add link to exteran fsync testing script and our fsync test tool.
2009-11-28 16:21:31 +00:00
Bruce Momjian
fe83b975b2 Document ath vacuumdb --analyze does analyze _also_, not in place of
vacuum.
2009-11-27 17:41:26 +00:00
Tom Lane
f0edaecd48 Fix missing end tag, per Jeff Davis. 2009-11-26 21:20:12 +00:00
Tom Lane
da29cc8022 Simplify psql's new linestyle behavior to default to linestyle=ascii all
the time, rather than hoping we can tell whether the terminal supports
UTF8 characters.  Per discussion.
2009-11-25 20:26:31 +00:00
Peter Eisentraut
f6a79c5901 Fix syntax in extract() examples
Author: Erik Rijkers <er@xs4all.nl>
2009-11-24 19:21:15 +00:00
Peter Eisentraut
6e3117c3c9 Add PG_MODULE_MAGIC and some missing include files to examples
Author: Euler Taveira de Oliveira <euler@timbira.com>
2009-11-23 21:41:20 +00:00
Tom Lane
c194ff20d2 Assorted wordsmithing on the documentation of \pset --- try to make it
a bit more consistent and less obviously written by different people at
different times.
2009-11-22 22:06:30 +00:00
Tom Lane
1753337cf5 Improve psql's tabular display of wrapped-around data by inserting markers
in the formerly-always-blank columns just to left and right of the data.
Different marking is used for a line break caused by a newline in the data
than for a straight wraparound.  A newline break is signaled by a "+" in the
right margin column in ASCII mode, or a carriage return arrow in UNICODE mode.
Wraparound is signaled by a dot in the right margin as well as the following
left margin in ASCII mode, or an ellipsis symbol in the same places in UNICODE
mode.  "\pset linestyle old-ascii" is added to make the previous behavior
available if anyone really wants it.

In passing, this commit also cleans up a few regression test files that
had unintended spacing differences from the current actual output.

Roger Leigh, reviewed by Gabrielle Roth and other members of PDXPUG.
2009-11-22 05:20:41 +00:00
Tom Lane
7fc0f06221 Add a WHEN clause to CREATE TRIGGER, allowing a boolean expression to be
checked to determine whether the trigger should be fired.

For BEFORE triggers this is mostly a matter of spec compliance; but for AFTER
triggers it can provide a noticeable performance improvement, since queuing of
a deferred trigger event and re-fetching of the row(s) at end of statement can
be short-circuited if the trigger does not need to be fired.

Takahiro Itagaki, reviewed by KaiGai Kohei.
2009-11-20 20:38:12 +00:00
Tom Lane
c742b795dd Add a hook to CREATE/ALTER ROLE to allow an external module to check the
strength of database passwords, and create a sample implementation of
such a hook as a new contrib module "passwordcheck".

Laurenz Albe, reviewed by Takahiro Itagaki
2009-11-18 21:57:56 +00:00
Tom Lane
5e66a51c2e Provide a parenthesized-options syntax for VACUUM, analogous to that recently
adopted for EXPLAIN.  This will allow additional options to be implemented
in future without having to make them fully-reserved keywords.  The old syntax
remains available for existing options, however.

Itagaki Takahiro
2009-11-16 21:32:07 +00:00
Tom Lane
6317609986 Add control knobs for plpgsql's variable resolution behavior, and make the
default be "throw error on conflict", as per discussions.  The GUC variable
is plpgsql.variable_conflict, with values "error", "use_variable",
"use_column".  The behavior can also be specified per-function by inserting
one of
	#variable_conflict error
	#variable_conflict use_variable
	#variable_conflict use_column
at the start of the function body.

The 8.5 release notes will need to mention using "use_variable" to retain
backward-compatible behavior, although we should encourage people to migrate
to the much less mistake-prone "error" setting.

Update the plpgsql documentation to match this and other recent changes.
2009-11-13 22:43:42 +00:00
Alvaro Herrera
af054db6ef Document the previous FETCH and MOVE changes. 2009-11-11 20:07:57 +00:00
Bruce Momjian
b538b72eeb DIAGNOSTICS/FOUND wording
Update wording of GET DIAGNOSTICS/FOUND, per David Fetter.
2009-11-10 14:22:45 +00:00
Bruce Momjian
6ac697f180 PL/pgSQL FOUND
Document that GET DIAGNOSTICS is affected by EXECUTE, while FOUND is
not.
2009-11-10 02:09:54 +00:00
Tom Lane
593f4b854a Don't treat NEW and OLD as reserved words anymore. For the purposes of rules
it works just as well to have them be ordinary identifiers, and this gets rid
of a number of ugly special cases.  Plus we aren't interfering with non-rule
usage of these names.

catversion bump because the names change internally in stored rules.
2009-11-05 23:24:27 +00:00
Tom Lane
c29ae527e9 Remove plpgsql's RENAME declaration, which has bizarre and mostly nonfunctional
behavior, and is so little used that no one has been interested in fixing it.
To ensure that possible uses are covered, remove the ALIAS declaration's
arbitrary restriction that only $n identifiers can be aliased.

(We could alternatively make RENAME act just like ALIAS, but per discussion
having two different ways to do the same thing is probably more confusing than
helpful.)
2009-11-05 16:58:36 +00:00
Tom Lane
9bedd128d6 Add support for invoking parser callback hooks via SPI and in cached plans.
As proof of concept, modify plpgsql to use the hooks.  plpgsql is still
inserting $n symbols textually, but the "back end" of the parsing process now
goes through the ParamRef hook instead of using a fixed parameter-type array,
and then execution only fetches actually-referenced parameters, using a hook
added to ParamListInfo.

Although there's a lot left to be done in plpgsql, this already cures the
"if (TG_OP = 'INSERT' and NEW.foo ...)"  problem, as illustrated by the
changed regression test.
2009-11-04 22:26:08 +00:00
Tom Lane
46e3a16b05 When FOR UPDATE/SHARE is used with LIMIT, put the LockRows plan node
underneath the Limit node, not atop it.  This fixes the old problem that such
a query might unexpectedly return fewer rows than the LIMIT says, due to
LockRows discarding updated rows.

There is a related problem that LockRows might destroy the sort ordering
produced by earlier steps; but fixing that by pushing LockRows below Sort
would create serious performance problems that are unjustified in many
real-world applications, as well as potential deadlock problems from locking
many more rows than expected.  Instead, keep the present semantics of applying
FOR UPDATE after ORDER BY within a single query level; but allow the user to
specify the other way by writing FOR UPDATE in a sub-select.  To make that
work, track whether FOR UPDATE appeared explicitly in sub-selects or got
pushed down from the parent, and don't flatten a sub-select that contained an
explicit FOR UPDATE.
2009-10-28 14:55:47 +00:00
Tom Lane
61e5328208 Make FOR UPDATE/SHARE in the primary query not propagate into WITH queries;
for example in
  WITH w AS (SELECT * FROM foo) SELECT * FROM w, bar ... FOR UPDATE
the FOR UPDATE will now affect bar but not foo.  This is more useful and
consistent than the original 8.4 behavior, which tried to propagate FOR UPDATE
into the WITH query but always failed due to assorted implementation
restrictions.  Even though we are in process of removing those restrictions,
it seems correct on philosophical grounds to not let the outer query's
FOR UPDATE affect the WITH query.

In passing, fix isLockedRel which frequently got things wrong in
nested-subquery cases: "FOR UPDATE OF foo" applies to an alias foo in the
current query level, not subqueries.  This has been broken for a long time,
but it doesn't seem worth back-patching further than 8.4 because the actual
consequences are minimal.  At worst the parser would sometimes get
RowShareLock on a relation when it should be AccessShareLock or vice versa.
That would only make a difference if someone were using ExclusiveLock
concurrently, which no standard operation does, and anyway FOR UPDATE
doesn't result in visible changes so it's not clear that the someone would
notice any problem.  Between that and the fact that FOR UPDATE barely works
with subqueries at all in existing releases, I'm not excited about worrying
about it.
2009-10-27 17:11:18 +00:00
Alvaro Herrera
b091b9769a Fix documentation on the toast.fillfactor reloption: it doesn't exist.
Per note from Zoltan Boszormenyi.
2009-10-27 13:58:28 +00:00
Peter Eisentraut
76d8883c8e When querying a table with child tables, do not check permissions on the
child tables.  This was found to be useless and confusing in virtually all
cases, and also contrary to the SQL standard.
2009-10-23 05:24:52 +00:00
Tom Lane
ab61df9e52 Remove regex_flavor GUC, so that regular expressions are always "advanced"
style by default.  Per discussion, there seems to be hardly anything that
really relies on being able to change the regex flavor, so the ability to
select it via embedded options ought to be enough for any stragglers.
Also, if we didn't remove the GUC, we'd really be morally obligated to
mark the regex functions non-immutable, which'd possibly create performance
issues.
2009-10-21 20:38:58 +00:00
Tom Lane
289e2905c8 Remove add_missing_from GUC and associated parser support for "implicit RTEs".
Per recent discussion, add_missing_from has been deprecated for long enough to
consider removing, and it's getting in the way of planned parser refactoring.
The system now always behaves as though add_missing_from were OFF.
2009-10-21 20:22:38 +00:00
Peter Eisentraut
e1c96527c7 Finalize 8.5alpha2 release notes, with updates from Josh Berkus 2009-10-21 19:43:06 +00:00
Peter Eisentraut
7bd93589c8 Preliminary release notes for 8.5alpha2 2009-10-20 19:52:58 +00:00
Tom Lane
b2734a0d79 Support SQL-compliant triggers on columns, ie fire only if certain columns
are named in the UPDATE's SET list.

Note: the schema of pg_trigger has not actually changed; we've just started
to use a column that was there all along.  catversion bumped anyway so that
this commit is included in the history of potentially interesting changes
to system catalog contents.

Itagaki Takahiro
2009-10-14 22:14:25 +00:00
Peter Eisentraut
207b4da51d Replace unmatched " by &quot; to avoid throwing off syntax highlighters. 2009-10-13 22:46:13 +00:00
Tom Lane
42ec8ad628 Add "\pset linestyle ascii/unicode" option to psql, allowing our traditional
ASCII-art style of table output to be upgraded to use Unicode box drawing
characters if desired.  By default, psql will use the Unicode characters
whenever client_encoding is UTF8.

The patch forces linestyle=ascii in pg_regress usage, ensuring we don't
break the regression tests in Unicode locales.

Roger Leigh
2009-10-13 21:04:01 +00:00
Tom Lane
8d54c2482b Code review for LIKE INCLUDING patch --- clean up some cosmetic and not
so cosmetic stuff.
2009-10-13 00:53:08 +00:00
Tom Lane
5ec1341136 Use plurals (TABLES, FUNCTIONS, etc) in ALTER DEFAULT PRIVILEGES. We have
the keywords as a consequence of the GRANT ALL patch, so we might as well
use them and make the ALTER commands read more naturally.
2009-10-12 23:41:45 +00:00
Tom Lane
11ca04b4b7 Support GRANT/REVOKE ON ALL TABLES/SEQUENCES/FUNCTIONS IN SCHEMA.
Petr Jelinek
2009-10-12 20:39:42 +00:00
Andrew Dunstan
faa1afc6c1 CREATE LIKE INCLUDING COMMENTS and STORAGE, and INCLUDING ALL shortcut. Itagaki Takahiro. 2009-10-12 19:49:24 +00:00
Tom Lane
05d249717d Improve similar_escape() in two different ways:
* Stop escaping ? and {.  As of SQL:2008, SIMILAR TO is defined to have
POSIX-compatible interpretation of ? as well as {m,n} and related constructs,
so we should allow these things through to our regex engine.

* Escape ^ and $.  It appears that our regex engine will treat ^^ at the
beginning of the string the same as ^, and similarly for $$ at the end of
the string, which meant that SIMILAR TO was effectively ignoring ^ at the
start of the pattern and $ at the end.  Since these are not supposed to be
metacharacters, this is a bug.

The second part of this is arguably a back-patchable bug fix, but I'm
hesitant to do that because it might break applications that are expecting
something like "col SIMILAR TO '^foo$'" to work like a POSIX pattern.
Seems safer to only change it at a major version boundary.

Per discussion of an example from Doug Gorley.
2009-10-10 03:50:15 +00:00
Tom Lane
8a5849b7ff Split the processing of INSERT/UPDATE/DELETE operations out of execMain.c.
They are now handled by a new plan node type called ModifyTable, which is
placed at the top of the plan tree.  In itself this change doesn't do much,
except perhaps make the handling of RETURNING lists and inherited UPDATEs a
tad less klugy.  But it is necessary preparation for the intended extension of
allowing RETURNING queries inside WITH.

Marko Tiikkaja
2009-10-10 01:43:50 +00:00
Peter Eisentraut
b865d27582 Use pg_get_triggerdef in pg_dump
Add a variant of pg_get_triggerdef with a second argument "pretty" that
causes the output to be formatted in the way pg_dump used to do.  Use this
variant in pg_dump with server versions >= 8.5.

This insulates pg_dump from most future trigger feature additions, such as
the upcoming column triggers patch.

Author: Itagaki Takahiro <itagaki.takahiro@oss.ntt.co.jp>
2009-10-09 21:02:56 +00:00
Alvaro Herrera
474f825574 Add the new psql command \drds to the psql docs, help and tab completion.
I also thank Bernd Helmle for the documentation help on the previous settings
patch, which I forgot on the commit message.
2009-10-08 16:34:01 +00:00
Tom Lane
822b0159cc Update plhandler.sgml to describe validators and inline handlers for
procedural languages.
2009-10-08 04:41:07 +00:00
Tom Lane
717fa274d1 Support use of function argument names to identify which actual arguments
match which function parameters.  The syntax uses AS, for example
	funcname(value AS arg1, anothervalue AS arg2)

Pavel Stehule
2009-10-08 02:39:25 +00:00