Commit Graph

10166 Commits

Author SHA1 Message Date
Tom Lane
09b49a8439 Update discussion of EXPLAIN to reflect existence of ModifyTable nodes.
Back-patch to 9.0, since this was changed then.
2011-03-01 11:37:02 -05:00
Robert Haas
59d6a75942 Avoid excessive Hot Standby feedback messages.
Without this patch, when wal_receiver_status_interval=0, indicating that no
status messages should be sent, Hot Standby feedback messages are instead sent
extremely frequently.

Fujii Masao, with documentation changes by me.
2011-03-01 11:34:25 -05:00
Peter Eisentraut
474a42473a PL/Python custom SPI exceptions
This provides a separate exception class for each error code that the
backend defines, as well as the ability to get the SQLSTATE from the
exception object.

Jan Urbański, reviewed by Steve Singer
2011-02-28 18:41:10 +02:00
Tom Lane
0ef0b30204 Add documentation for data-modifying statements in WITH clauses.
Marko Tiikkaja, somewhat reworked by Tom
2011-02-28 01:17:58 -05:00
Bruce Momjian
c11f1f714b Document that last vacuum statistics and counts are for non-FULL vacuums. 2011-02-27 18:04:22 -05:00
Peter Eisentraut
22690719ea PL/Python explicit subtransactions
Adds a context manager, obtainable by plpy.subtransaction(), to run a
group of statements in a subtransaction.

Jan Urbański, reviewed by Steve Singer, additional scribbling by me
2011-02-27 21:15:35 +02:00
Bruce Momjian
721ea41f14 Fix markup for pg_options_to_table() to report the return column names,
per suggestion from Andrew.
2011-02-27 03:50:12 -05:00
Heikki Linnakangas
be6668d6ef Increase the default for wal_sender_delay from 200ms to 1s. Now that WAL
sender is immediately woken up by transaction commit, there's no need to
wake up so aggressively.
2011-02-26 23:38:25 +02:00
Bruce Momjian
58838a7a52 Document that pg_options_to_table() also works for
pg_attribute.attoptions.
2011-02-26 12:47:29 -05:00
Bruce Momjian
86434afb11 Fix doc patch --- pg_options_to_table() returns "setof record". 2011-02-26 12:26:59 -05:00
Peter Eisentraut
bc411f25c1 Table function support for PL/Python
This allows functions with multiple OUT parameters returning both one
or multiple records (RECORD or SETOF RECORD).

Jan Urbański, reviewed by Hitoshi Harada
2011-02-26 16:53:11 +02:00
Bruce Momjian
772dcfe7c0 Document pg_options_to_table() (not previously documented) 2011-02-26 01:56:49 -05:00
Robert Haas
79ad8fc5f8 Named restore point improvements.
Emit a log message when creating a named restore point, and improve
documentation for pg_create_restore_point().

Euler Taveira de Oliveira, 	per suggestions from Thom Brown, with some
additional wordsmithing by me.
2011-02-24 19:02:00 -05:00
Bruce Momjian
2c72d7042b Update wording about information schema and name which views potentially
can have duplicates, per request from Tom.
2011-02-22 23:32:23 -05:00
Peter Eisentraut
1c51c7d5ff Add PL/Python functions for quoting strings
Add functions plpy.quote_ident, plpy.quote_literal,
plpy.quote_nullable, which wrap the equivalent SQL functions.

To be able to propagate char * constness properly, make the argument
of quote_literal_cstr() const char *.  This also makes it more
consistent with quote_identifier().

Jan Urbański, reviewed by Hitoshi Harada, some refinements by Peter
Eisentraut
2011-02-22 23:41:23 +02:00
Robert Haas
3e6b305d9e Fix a couple of unlogged tables goofs.
"SELECT ... INTO UNLOGGED tabname" works, but wasn't documented; CREATE
UNLOGGED SEQUENCE and CREATE UNLOGGED VIEW failed an assertion, instead
of throwing a sensible error.

Latter issue reported by Itagaki Takahiro; patch review by Tom Lane.
2011-02-22 14:46:19 -05:00
Bruce Momjian
edb382179d Reword information_schema duplicate constraint warning text. 2011-02-22 09:06:56 -05:00
Bruce Momjian
fee7802770 Move information_schema duplicate constraint note to the top of the
information schema documentation because it affects several tables.
2011-02-21 20:14:02 -05:00
Bruce Momjian
ede45e90dd Update docs about new role privileges reference, per Alvaro. 2011-02-21 09:15:48 -05:00
Itagaki Takahiro
3cba8240a1 Add ENCODING option to COPY TO/FROM and file_fdw.
File encodings can be specified separately from client encoding.
If not specified, client encoding is used for backward compatibility.

Cases when the encoding doesn't match client encoding are slower
than matched cases because we don't have conversion procs for other
encodings. Performance improvement would be be a future work.

Original patch by Hitoshi Harada, and modified by me.
2011-02-21 14:32:40 +09:00
Bruce Momjian
48d25bac9f Merge two documentation permission chapters into a single chapter. 2011-02-20 22:21:34 -05:00
Tom Lane
7c5d0ae707 Add contrib/file_fdw foreign-data wrapper for reading files via COPY.
This is both very useful in its own right, and an important test case
for the core FDW support.

This commit includes a small refactoring of copy.c to expose its option
checking code as a separately callable function.  The original patch
submission duplicated hundreds of lines of that code, which seemed pretty
unmaintainable.

Shigeru Hanada, reviewed by Itagaki Takahiro and Tom Lane
2011-02-20 14:06:59 -05:00
Tom Lane
bb74240794 Implement an API to let foreign-data wrappers actually be functional.
This commit provides the core code and documentation needed.  A contrib
module test case will follow shortly.

Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
2011-02-20 00:18:14 -05:00
Bruce Momjian
d5813488a4 Adjust documentation wording of window function ORDER BY to not mention
avg() because it was inaccurate.
2011-02-20 00:01:08 -05:00
Bruce Momjian
8c0f1e2762 Documentation update for UTF16 surrogate pairs in UTF8 encoding.
Marko Kreen
2011-02-19 19:00:19 -05:00
Bruce Momjian
e07ae21f7e Document that an SQL-standard-compliant query that expects a unique row
from information_schema.referential_constraints might return several in
Postgres because we allow duplicate-named constraints in the same
schema.
2011-02-19 18:21:36 -05:00
Peter Eisentraut
02e14562a8 Set psql client encoding from locale by default
Add a new libpq connection option client_encoding (which includes the
existing PGCLIENTENCODING environment variable), which besides an
encoding name accepts a special value "auto" that tries to determine
the encoding from the locale in the client's environment, using the
mechanisms that have been in use in initdb.

psql sets this new connection option to "auto" when running from a
terminal and not overridden by setting PGCLIENTENCODING.

original code by Heikki Linnakangas, with subsequent contributions by
Jaime Casanova, Peter Eisentraut, Stephen Frost, Ibrar Ahmed
2011-02-19 08:54:58 +02:00
Tom Lane
327e025071 Create the catalog infrastructure for foreign-data-wrapper handlers.
Add a fdwhandler column to pg_foreign_data_wrapper, plus HANDLER options
in the CREATE FOREIGN DATA WRAPPER and ALTER FOREIGN DATA WRAPPER commands,
plus pg_dump support for same.  Also invent a new pseudotype fdw_handler
with properties similar to language_handler.

This is split out of the "FDW API" patch for ease of review; it's all stuff
we will certainly need, regardless of any other details of the FDW API.
FDW handler functions will not actually get called yet.

In passing, fix some omissions and infelicities in foreigncmds.c.

Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
2011-02-19 00:07:15 -05:00
Bruce Momjian
4077980d67 Improve text search prefix doc addition. 2011-02-18 23:23:52 -05:00
Bruce Momjian
5bba4948eb Document that text search comparisons happen after text search
configuration rules.

Erik Rijkers
2011-02-18 22:39:52 -05:00
Itagaki Takahiro
62c7bd31c8 Add transaction-level advisory locks.
They share the same locking namespace with the existing session-level
advisory locks, but they are automatically released at the end of the
current transaction and cannot be released explicitly via unlock
functions.

Marko Tiikkaja, reviewed by me.
2011-02-18 14:05:12 +09:00
Alvaro Herrera
87bb2ade2c Convert Postgres arrays to Perl arrays on PL/perl input arguments
More generally, arrays are turned in Perl array references, and row and
composite types are turned into Perl hash references.  This is done
recursively, in a way that's natural to every Perl programmer.

To avoid a backwards compatibility hit, the string representation of
each structure is also available if the function requests it.

Authors: Alexey Klyukin and Alex Hunsaker.
Some code cleanups by me.
2011-02-17 22:20:40 -03:00
Robert Haas
4a25bc145a Add client_hostname field to pg_stat_activity.
Peter Eisentraut, reviewed by Steve Singer, Alvaro Herrera, and me.
2011-02-17 16:03:28 -05:00
Bruce Momjian
4f2cfc5bb4 Typo fix
Erik Rijkers
2011-02-17 15:57:37 -05:00
Bruce Momjian
3472a2b056 Remove doc mention about read committed in upsert example. 2011-02-17 14:24:14 -05:00
Bruce Momjian
f87712d208 Document that plpgsql upsert example can fail if insert triggers return
unique exception, or if not used in read committed transaction mode.
2011-02-17 13:36:36 -05:00
Bruce Momjian
732808c087 In documentation example, use concat_values() instead of concat()
because concat() is a built-in function.

Erik Rijkers
2011-02-17 12:37:13 -05:00
Robert Haas
9408783aef Typo fixes.
Thom Brown
2011-02-17 08:07:31 -05:00
Robert Haas
24bc6b3db3 Remove rule to build sepgsql-regtest.pp.
Instead, document how to build it manually.

Per discussion.  KaiGai Kohei, with some wordsmithing by me.
2011-02-17 06:40:32 -05:00
Simon Riggs
bca8b7f16a Hot Standby feedback for avoidance of cleanup conflicts on standby.
Standby optionally sends back information about oldestXmin of queries
which is then checked and applied to the WALSender's proc->xmin.
GetOldestXmin() is modified slightly to agree with GetSnapshotData(),
so that all backends on primary include WALSender within their snapshots.
Note this does nothing to change the snapshot xmin on either master or
standby. Feedback piggybacks on the standby reply message.
vacuum_defer_cleanup_age is no longer used on standby, though parameter
still exists on primary, since some use cases still exist.

Simon Riggs, review comments from Fujii Masao, Heikki Linnakangas, Robert Haas
2011-02-16 19:29:37 +00:00
Tom Lane
6e02755b22 Add FOREACH IN ARRAY looping to plpgsql.
(I'm not entirely sure that we've finished bikeshedding the syntax details,
but the functionality seems OK.)

Pavel Stehule, reviewed by Stephen Frost and Tom Lane
2011-02-16 01:53:03 -05:00
Robert Haas
4695da5ae9 pg_ctl promote
Fujii Masao, reviewed by Robert Haas, Stephen Frost, and Magnus Hagander.
2011-02-15 21:30:23 -05:00
Robert Haas
883a9659fa Assorted corrections to the patch to add WAL receiver replies.
Per reports from Fujii Masao.
2011-02-15 12:05:00 -05:00
Robert Haas
6a77e9385e Rename max_predicate_locks_per_transaction.
The new name, max_pred_locks_per_transaction, is shorter.

Kevin Grittner, per discussion.
2011-02-15 08:04:55 -05:00
Robert Haas
0d90dc16f8 Avoid a few more SET DATA TYPE table rewrites.
When the new type is an unconstrained domain over the old type, we don't
need to rewrite the table.

Noah Misch and Robert Haas
2011-02-14 23:40:05 -05:00
Simon Riggs
0ff1b73509 Additional required docs for pg_constraint catalog entry
Noted by Bernd Helmle
2011-02-15 00:59:29 +00:00
Tom Lane
555353c0c5 Rearrange extension-related views as per recent discussion.
The original design of pg_available_extensions did not consider the
possibility of version-specific control files.  Split it into two views:
pg_available_extensions shows information that is generic about an
extension, while pg_available_extension_versions shows all available
versions together with information that could be version-dependent.
Also, add an SRF pg_extension_update_paths() to assist in checking that
a collection of update scripts provide sane update path sequences.
2011-02-14 19:22:36 -05:00
Tom Lane
cee103da14 Small improvements to external-projects documentation. 2011-02-14 19:22:34 -05:00
Tom Lane
f1fb4b0e63 Fix obsolete references to old-style contrib installation methods. 2011-02-14 01:10:44 -05:00
Tom Lane
e693e97d75 Support replacing MODULE_PATHNAME during extension script file execution.
This avoids the need to find a way to make PGXS' .sql.in-to-.sql rule
insert the right thing.  We'll just deprecate use of that hack for
extensions.
2011-02-13 22:54:43 -05:00