Commit Graph

8518 Commits

Author SHA1 Message Date
Tom Lane
87a2f050a9 Cause EXPLAIN's VERBOSE option to print the target list (output column list)
of each plan node, instead of its former behavior of dumping the internal
representation of the plan tree.  The latter display is still available for
those who really want it (see debug_print_plan), but uses for it are certainly
few and and far between.  Per discussion.

This patch also removes the explain_pretty_print GUC, which is obsoleted
by the change.
2008-04-18 01:42:17 +00:00
Bruce Momjian
c5c7ba1b10 TODO Done:
> * -Allow administrators to safely terminate individual sessions
2008-04-17 20:57:07 +00:00
Bruce Momjian
c4fd93b3f3 Re-enable pg_terminate_backend() using SIGTERM. SIGTERM testing still
needed.
2008-04-17 20:56:41 +00:00
Bruce Momjian
35390aab16 Update most recent release to 8.3.1. 2008-04-16 20:57:18 +00:00
Bruce Momjian
c0f839fc60 Update TODO wording. 2008-04-16 17:50:01 +00:00
Bruce Momjian
54495e387f Add to TODO:
> * Implement the non-threaded Avahi service discovery protocol
>   http://archives.postgresql.org/pgsql-hackers/2008-02/msg00939.php
>   http://archives.postgresql.org/pgsql-patches/2008-02/msg00097.php
>   http://archives.postgresql.org/pgsql-hackers/2008-03/msg01211.php
>   http://archives.postgresql.org/pgsql-patches/2008-04/msg00001.php
2008-04-16 17:25:56 +00:00
Bruce Momjian
17cdf848b8 Re-add terminate TODO item. 2008-04-15 21:39:19 +00:00
Bruce Momjian
76365960d2 Revert addition of pg_terminate_backend() because of race conditions. 2008-04-15 20:28:47 +00:00
Bruce Momjian
1e40da49ae Add TODO item:
< * Allow NOTIFY in rules involving conditionals
>
> 	o Allow NOTIFY in rules involving conditionals
> 	o Improve LISTEN concurrency
>
> 	  http://archives.postgresql.org/pgsql-hackers/2008-02/msg01106.php
2008-04-15 15:08:59 +00:00
Bruce Momjian
6d2b258ad0 Move LISTEN/NOTIFY items to separate TODO section. 2008-04-15 15:07:09 +00:00
Bruce Momjian
c28c9d69ef Add to TODO:
> * Allow XML to accept more liberal DOCTYPE specifications
>
>   http://archives.postgresql.org/pgsql-general/2008-02/msg00347.php
2008-04-15 14:24:32 +00:00
Bruce Momjian
56913735d0 Done:
> * -Allow administrators to safely terminate individual sessions either
2008-04-15 13:55:42 +00:00
Bruce Momjian
18b286f3e3 Add pg_terminate_backend() to allow terminating only a single session. 2008-04-15 13:55:12 +00:00
Tom Lane
9b5c8d45f6 Push index operator lossiness determination down to GIST/GIN opclass
"consistent" functions, and remove pg_amop.opreqcheck, as per recent
discussion.  The main immediate benefit of this is that we no longer need
8.3's ugly hack of requiring @@@ rather than @@ to test weight-using tsquery
searches on GIN indexes.  In future it should be possible to optimize some
other queries better than is done now, by detecting at runtime whether the
index match is exact or not.

Tom Lane, after an idea of Heikki's, and with some help from Teodor.
2008-04-14 17:05:34 +00:00
Bruce Momjian
9afab58eed Add URL for:
* Consider automatic caching of statements at various levels:

> 	http://archives.postgresql.org/pgsql-hackers/2008-04/msg00823.php
2008-04-14 13:33:53 +00:00
Tom Lane
24558da14a Phase 2 of project to make index operator lossiness be determined at runtime
instead of plan time.  Extend the amgettuple API so that the index AM returns
a boolean indicating whether the indexquals need to be rechecked, and make
that rechecking happen in nodeIndexscan.c (currently the only place where
it's expected to be needed; other callers of index_getnext are just erroring
out for now).  For the moment, GIN and GIST have stub logic that just always
sets the recheck flag to TRUE --- I'm hoping to get Teodor to handle pushing
that control down to the opclass consistent() functions.  The planner no
longer pays any attention to amopreqcheck, and that catalog column will go
away in due course.
2008-04-13 19:18:14 +00:00
Tom Lane
c22ed3d523 Turn the -i/--ignore-version options of pg_dump and pg_dumpall into no-ops:
the server version check is now always enforced.  Relax the version check to
allow a server that is of pg_dump's own major version but a later minor
version; this is the only case that -i was at all safe to use in.

pg_restore already enforced only a very weak version check, so this is
really just a documentation change for it.

Per discussion.
2008-04-13 03:49:22 +00:00
Bruce Momjian
00b1827ae1 Update wording:
< * Allow functions to control the transaction state
> * Allow calling of a procedure outside a SELECT that can control the
>   transaction state
2008-04-11 19:50:40 +00:00
Bruce Momjian
accbddc9bd Changed TODO wording:
< * Support procedures, which return no value
> * Allow functions to control the transaction state
2008-04-11 19:36:07 +00:00
Bruce Momjian
942550575f Add TODO:
> * Support procedures, which return no value
>
>   http://archives.postgresql.org/pgsql-hackers/2007-10/msg01375.php
2008-04-11 19:16:47 +00:00
Bruce Momjian
a464dc07fe Update URLs for dead space map. 2008-04-11 19:14:57 +00:00
Tom Lane
4e82a95476 Replace "amgetmulti" AM functions with "amgetbitmap", in which the whole
indexscan always occurs in one call, and the results are returned in a
TIDBitmap instead of a limited-size array of TIDs.  This should improve
speed a little by reducing AM entry/exit overhead, and it is necessary
infrastructure if we are ever to support bitmap indexes.

In an only slightly related change, add support for TIDBitmaps to preserve
(somewhat lossily) the knowledge that particular TIDs reported by an index
need to have their quals rechecked when the heap is visited.  This facility
is not really used yet; we'll need to extend the forced-recheck feature to
plain indexscans before it's useful, and that hasn't been coded yet.
The intent is to use it to clean up 8.3's horrid @@@ kluge for text search
with weighted queries.  There might be other uses in future, but that one
alone is sufficient reason.

Heikki Linnakangas, with some adjustments by me.
2008-04-10 22:25:26 +00:00
Bruce Momjian
f260edb144 Add TODO URLs moved from open items queue:
>   http://archives.postgresql.org/pgsql-hackers/2007-03/msg00265.php
>   http://archives.postgresql.org/pgsql-hackers/2007-03/msg01214.php
>   http://archives.postgresql.org/pgsql-patches/2007-05/msg00013.php
>   http://archives.postgresql.org/pgsql-hackers/2007-07/msg00741.php
>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00014.php
>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00487.php
> * Allow index scans to return matching index keys
>
>   http://archives.postgresql.org/pgsql-hackers/2007-03/msg01079.php
>
>   http://archives.postgresql.org/pgsql-patches/2007-10/msg00166.php
>   http://archives.postgresql.org/pgsql-patches/2008-01/msg00049.php
2008-04-10 18:58:15 +00:00
Alvaro Herrera
e863951a59 Remove mention of DBD::PgSPI, which is unmaintained and generally unnecessary. 2008-04-10 15:16:46 +00:00
Alvaro Herrera
66782364a1 Mention pg_backend_pid() in the system information section in addition
to the monitoring section.

Jim Nasby
2008-04-10 13:34:33 +00:00
Bruce Momjian
d44523638a Document that continuous archiving backup can be used for cases where
you can't get a simultaneous snapshot.
2008-04-09 02:52:04 +00:00
Bruce Momjian
2662e03b64 Update text FAQ. 2008-04-09 01:04:08 +00:00
Bruce Momjian
8cb3ad9f52 Revert sentence removal from nickname in FAQ. 2008-04-09 00:55:30 +00:00
Bruce Momjian
20c5542c8b Remove mention of the Berkeley origins of the alias "Postgres" ---
seems unnecessary to mention in the FAQ, per discussion on IRC.
2008-04-09 00:44:07 +00:00
Bruce Momjian
8deafd6fdf Add to TODO:
>
> 	o Add ability to obfuscate function bodies
>
> 	  http://archives.postgresql.org/pgsql-patches/2008-01/msg00125.php
2008-04-07 02:14:14 +00:00
Bruce Momjian
a84171b078 Add documentation clarification for IS [NOT] NULL and row-valued
expressions.
2008-04-07 00:51:27 +00:00
Tom Lane
347dd6a1cf Make plpgsql support FOR over a query specified by a cursor declaration,
for improved compatibility with Oracle.

Pavel Stehule, with some fixes by me.
2008-04-06 23:43:29 +00:00
Bruce Momjian
2a1cf97c22 Have pg_stop_backup() wait for all archive files to be sent, rather than
returing right away.  This guarantees that when pg_stop_backup()
returns, you have a valid backup.

Simon Riggs
2008-04-05 01:34:06 +00:00
Tom Lane
a0fad9762a Re-implement division for numeric values using the traditional "schoolbook"
algorithm.  This is a good deal slower than our old roundoff-error-prone
code for long inputs, so we keep the old code for use in the transcendental
functions, where everything is approximate anyway.  Also create a
user-accessible function div(numeric, numeric) to provide access to the
exact result of trunc(x/y) --- since the regular numeric / operator will
round off its result, simply computing that expression in SQL doesn't
reliably give the desired answer.  This fixes bug #3387 and various related
corner cases, and improves the usefulness of PG for high-precision integer
arithmetic.
2008-04-04 18:45:36 +00:00
Bruce Momjian
f96928fde9 Implement current_query(), that shows the currently executing query.
At the same time remove dblink/dblink_current_query() as it is no longer
necessary
*BACKWARD COMPATIBILITY ISSUE* for dblink

Tomas Doran
2008-04-04 16:57:21 +00:00
Tom Lane
55f6e5f689 Add a variant of the Levenshtein string-distance function that lets the user
specify the cost values to use, instead of always using 1's.
Volkan Yazici

In passing, remove fuzzystrmatch.h, which contained a bunch of stuff that had
no business being in a .h file; fold it into its only user, fuzzystrmatch.c.
2008-04-03 21:13:07 +00:00
Bruce Momjian
bbe48195ab Add Wiki URLs for:
< * Allow encoding on a per-column basis optionally using the ICU library

>   http://wiki.postgresql.org/wiki/Todo:Collate
>   http://wiki.postgresql.org/wiki/Todo:ICU
2008-04-03 18:14:02 +00:00
Bruce Momjian
d3bf8c7097 Add to TODO:
> * Improve how ANALYZE computes in-doubt tuples
>
>   http://archives.postgresql.org/pgsql-hackers/2007-11/msg00771.php
>
2008-04-03 16:37:07 +00:00
Peter Eisentraut
ec0be6073a Remove -C from rsync call, because it omits directories named "core". 2008-04-03 09:52:03 +00:00
Bruce Momjian
b011c5ff6a Add URLs for:
* Add SQL:2003 WITH RECURSIVE (hierarchical) queries to SELECT

>   http://archives.postgresql.org/pgsql-patches/2008-01/msg00105.php
>   http://archives.postgresql.org/pgsql-patches/2008-03/msg00327.php
2008-04-03 01:56:04 +00:00
Bruce Momjian
afa2a9ec9c Remove due to survey/discussion:
<
< * Prefix command-line utilities like createuser with 'pg_'
<
<   http://archives.postgresql.org/pgsql-hackers/2007-06/msg00025.php
<
2008-04-02 02:11:47 +00:00
Tom Lane
e2a8804330 Support EXECUTE USING in plpgsql.
Pavel Stehule, with some improvements by myself.
2008-04-01 03:51:09 +00:00
Tom Lane
d5466e38f0 Add SPI-level support for executing SQL commands with one-time-use plans,
that is commands that have out-of-line parameters but the plan is prepared
assuming that the parameter values are constants.  This is needed for the
plpgsql EXECUTE USING patch, but will probably have use elsewhere.

This commit includes the SPI functions and documentation, but no callers
nor regression tests.  The upcoming EXECUTE USING patch will provide
regression-test coverage.  I thought committing this separately made
sense since it's logically a distinct feature.
2008-04-01 03:09:30 +00:00
Tom Lane
3405f2b925 Use error message wordings for permissions checks on .pgpass and SSL private
key files that are similar to the one for the postmaster's data directory
permissions check.  (I chose to standardize on that one since it's the most
heavily used and presumably best-wordsmithed by now.)  Also eliminate explicit
tests on file ownership in these places, since the ensuing read attempt must
fail anyway if it's wrong, and there seems no value in issuing the same error
message for distinct problems.  (But I left in the explicit ownership test in
postmaster.c, since it had its own error message anyway.)  Also be more
specific in the documentation's descriptions of these checks.  Per a gripe
from Kevin Hunter.
2008-03-31 02:43:14 +00:00
Tom Lane
b65a509746 Show database access privileges in psql's \l command. For \l+, also show
database size, when available to the current user.

Andrew Gilligan
2008-03-30 18:10:20 +00:00
Neil Conway
2169e42bef Enable 64-bit integer datetimes by default, per previous discussion.
This requires a working 64-bit integer type. If such a type cannot
be found, "--disable-integer-datetimes" can be used to switch
back to the previous floating point-based datetime implementation.
2008-03-30 04:08:15 +00:00
Bruce Momjian
2b350bc585 Done:
> * -Add ability to trigger on TRUNCATE
2008-03-28 15:18:42 +00:00
Heikki Linnakangas
958db06181 Clarify documentation on PITR and warm standby on the fact that the standby
restore_command should report failure on non-existent .backup and .history
files. Tidy up some related text along the way.

Patch by Markus Bertheau, with some editing by Simon Riggs and myself.
2008-03-28 15:00:28 +00:00
Bruce Momjian
da215f05ec Add to TODO:
>
> 	o Add CASE capability to language (already in SQL)
>
> 	  http://archives.postgresql.org/pgsql-hackers/2008-01/msg00696.php
>
>
2008-03-28 03:29:49 +00:00
Bruce Momjian
79262016a3 Add:
> * Allow one transaction to see tuples using the snapshot of another
>   transaction
>
>   This would assist multiple backends in working together.
>   http://archives.postgresql.org/pgsql-hackers/2008-01/msg00400.php
2008-03-28 02:36:04 +00:00