Commit Graph

8751 Commits

Author SHA1 Message Date
Tom Lane
44d5be0e53 Implement SQL-standard WITH clauses, including WITH RECURSIVE.
There are some unimplemented aspects: recursive queries must use UNION ALL
(should allow UNION too), and we don't have SEARCH or CYCLE clauses.
These might or might not get done for 8.4, but even without them it's a
pretty useful feature.

There are also a couple of small loose ends and definitional quibbles,
which I'll send a memo about to pgsql-hackers shortly.  But let's land
the patch now so we can get on with other development.

Yoshiyuki Asaba, with lots of help from Tatsuo Ishii and Tom Lane
2008-10-04 21:56:55 +00:00
Tom Lane
d5d552fa01 Add a note about how to check for bare < and & in SGML docs, before the
knowledge disappears again.
2008-10-04 02:19:08 +00:00
Peter Eisentraut
6761a0309b Add regression test for macaddr type. Enhance documentation about accepted
input formats.
2008-10-03 15:37:18 +00:00
Heikki Linnakangas
706a308806 Add relation fork support to pg_relation_size() function. You can now pass
name of a fork ('main' or 'fsm', at the moment) to pg_relation_size() to
get the size of a specific fork. Defaults to 'main', if none given.

While we're at it, modify pg_relation_size to take a regclass as argument,
instead of separate variants taking oid and name. This change is
transparent to typical use where the table name is passed as a string
literal, like pg_relation_size('table'), but will break queries like
pg_relation_size(namecol), where namecol is of type name. text-type input
still works, and using a non-schema-qualified table name is not very
reliable anyway, so this is unlikely to break anyone's queries in practice.
2008-10-03 07:33:10 +00:00
Heikki Linnakangas
6736da5484 Make the blkno arguments bigints instead of int4s. A signed int4 is not
large enough for block numbers higher than 2^31. The old pre-FSM-rewrite
pg_freespacemap implementation got this right. While we're at it, remove
some unnecessary #includes.
2008-10-02 12:20:50 +00:00
Heikki Linnakangas
f10a86ece7 Fix function name in pg_freespacemap docs. It's "pg_freespace", not
"pg_freespacemap". Reported by hubert depesz lubaczewski.
2008-10-02 10:26:51 +00:00
Heikki Linnakangas
15c121b3ed Rewrite the FSM. Instead of relying on a fixed-size shared memory segment, the
free space information is stored in a dedicated FSM relation fork, with each
relation (except for hash indexes; they don't use FSM).

This eliminates the max_fsm_relations and max_fsm_pages GUC options; remove any
trace of them from the backend, initdb, and documentation.

Rewrite contrib/pg_freespacemap to match the new FSM implementation. Also
introduce a new variant of the get_raw_page(regclass, int4, int4) function in
contrib/pageinspect that let's you to return pages from any relation fork, and
a new fsm_page_contents() function to inspect the new FSM pages.
2008-09-30 10:52:14 +00:00
Bruce Momjian
436e6af2ad Add documentation about when trigger values NEW/OLD return NULL.
Jeff Davis
2008-09-24 19:51:22 +00:00
Bruce Momjian
93eab311e4 Fix markup tag error, envvar -> envar. 2008-09-24 16:30:26 +00:00
Bruce Momjian
5a8cb50e4f Mention battery-backed cache under hardware selection options. 2008-09-23 20:20:07 +00:00
Heikki Linnakangas
c2d4526495 Tighten the check in initdb and CREATE DATABASE that the chosen encoding
matches the encoding of the locale. LC_COLLATE is now checked in addition
to LC_CTYPE.
2008-09-23 10:58:03 +00:00
Heikki Linnakangas
61d9674988 Make LC_COLLATE and LC_CTYPE database-level settings. Collation and
ctype are now more like encoding, stored in new datcollate and datctype
columns in pg_database.

This is a stripped-down version of Radek Strnad's patch, with further
changes by me.
2008-09-23 09:20:39 +00:00
Tom Lane
c52aab5525 Get rid of pgpass_from_client tracking inside libpq --- given the conclusion
that presence of the password in the conninfo string must be checked *before*
risking a connection attempt, there is no point in checking it afterwards.
This makes the specification of PQconnectionUsedPassword() a bit simpler
and perhaps more generally useful, too.
2008-09-22 14:21:44 +00:00
Tom Lane
cae7ad906a Fix dblink_connect() so that it verifies that a password is supplied in the
conninfo string *before* trying to connect to the remote server, not after.
As pointed out by Marko Kreen, in certain not-very-plausible situations
this could result in sending a password from the postgres user's .pgpass file,
or other places that non-superusers shouldn't have access to, to an
untrustworthy remote server.  The cleanest fix seems to be to expose libpq's
conninfo-string-parsing code so that dblink can check for a password option
without duplicating the parsing logic.

Joe Conway, with a little cleanup by Tom Lane
2008-09-22 13:55:14 +00:00
Tom Lane
3290e6180f Add a PQfireResultCreateEvents function to allow applications to mimic the
sequence of operations that libpq goes through while creating a PGresult.
Also, remove ill-considered "const" decoration on parameters passed to
event procedures.
2008-09-19 20:06:13 +00:00
Tom Lane
4e57668da4 Create a selectivity estimation function for the text search @@ operator.
Jan Urbanski
2008-09-19 19:03:41 +00:00
Tom Lane
e2b7d0c65c Improve the recently-added libpq events code to provide more consistent
guarantees about whether event procedures will receive DESTROY events.
They no longer need to defend themselves against getting a DESTROY
without a successful prior CREATE.

Andrew Chernow
2008-09-19 16:40:40 +00:00
Tom Lane
9fe79c39ca Preliminary release notes for upcoming back branch releases. 2008-09-17 20:57:35 +00:00
Tom Lane
32f159cc55 Add an "events" system to libpq, whereby applications can get callbacks that
enable them to manage private data associated with PGconns and PGresults.

Andrew Chernow and Merlin Moncure
2008-09-17 04:31:08 +00:00
Tom Lane
4adc2f72a4 Change hash indexes to store only the hash code rather than the whole indexed
value.  This means that hash index lookups are always lossy and have to be
rechecked when the heap is visited; however, the gain in index compactness
outweighs this when the indexed values are wide.  Also, we only need to
perform datatype comparisons when the hash codes match exactly, rather than
for every entry in the hash bucket; so it could also win for datatypes that
have expensive comparison functions.  A small additional win is gained by
keeping hash index pages sorted by hash code and using binary search to reduce
the number of index tuples we have to look at.

Xiao Meng

This commit also incorporates Zdenek Kotala's patch to isolate hash metapages
and hash bitmaps a bit better from the page header datastructures.
2008-09-15 18:43:41 +00:00
Magnus Hagander
440b3384b0 Add missing quotes. 2008-09-15 12:41:54 +00:00
Magnus Hagander
9872381090 Parse pg_hba.conf in postmaster, instead of once in each backend for
each connection. This makes it possible to catch errors in the pg_hba
file when it's being reloaded, instead of silently reloading a broken
file and failing only when a user tries to connect.

This patch also makes the "sameuser" argument to ident authentication
optional.
2008-09-15 12:32:57 +00:00
Magnus Hagander
5a1d35ce5c Polish and Turkish FAQ also needed converting to UTF8 2008-09-15 08:50:09 +00:00
Magnus Hagander
3a58d2e172 Convert Russian FAQ to UTF8, to make it render properly on the website. 2008-09-15 08:40:46 +00:00
Tom Lane
ffea8fd381 Update citext's documentation to match the recently-applied patch,
per David Wheeler.
2008-09-12 18:29:49 +00:00
Peter Eisentraut
cdd0895978 Update man page build instructions. 2008-09-12 08:43:53 +00:00
Tom Lane
cff4aa6ad6 Add a duration option to pgbench, so that test length can be specified in seconds
instead of by number of transactions to run.  Takahiro Itagaki
2008-09-11 23:52:48 +00:00
Tom Lane
06edce4c3f Tighten up to_date/to_timestamp so that they are more likely to reject
erroneous input, rather than silently producing bizarre results as formerly
happened.

Brendan Jurd
2008-09-11 17:32:34 +00:00
Tom Lane
70530c808b Adjust the parser to accept the typename syntax INTERVAL ... SECOND(n)
and the literal syntax INTERVAL 'string' ... SECOND(n), as required by the
SQL standard.  Our old syntax put (n) directly after INTERVAL, which was
a mistake, but will still be accepted for backward compatibility as well
as symmetry with the TIMESTAMP cases.

Change intervaltypmodout to show it in the spec's way, too.  (This could
potentially affect clients, if there are any that analyze the typmod of an
INTERVAL in any detail.)

Also fix interval input to handle 'min:sec.frac' properly; I had overlooked
this case in my previous patch.

Document the use of the interval fields qualifier, which up to now we had
never mentioned in the docs.  (I think the omission was intentional because
it didn't work per spec; but it does now, or at least close enough to be
credible.)
2008-09-11 15:27:30 +00:00
Alvaro Herrera
3b9ec4682c Add "source file" and "source line" information to each GUC variable.
initdb forced due to changes in the pg_settings view.

Magnus Hagander and Alvaro Herrera.
2008-09-10 18:09:20 +00:00
Tom Lane
a0b76dc662 Create a separate grantable privilege for TRUNCATE, rather than having it be
always owner-only.  The TRUNCATE privilege works identically to the DELETE
privilege so far as interactions with the rest of the system go.

Robert Haas
2008-09-08 00:47:41 +00:00
Tom Lane
8818f3793e Clarify description of pg_restore's handling of large objects. 2008-09-07 19:12:57 +00:00
Tom Lane
2cf3f6694f Add a few more details in the source-code-formatting documentation.
This isn't exhaustive but it covers some of the more common layout
mistakes I've seen in submitted patches.
2008-09-07 02:01:04 +00:00
Bruce Momjian
1cfd878643 Clarify documention workding for xip_list().
Simon Riggs
2008-09-07 01:29:36 +00:00
Tom Lane
409c144d83 Adjust psql's new \ef command to present an empty CREATE FUNCTION template
for editing if no function name is specified.  This seems a much cleaner way
to offer that functionality than the original patch had.  In passing,
de-clutter the error displays that are given for a bogus function-name
argument, and standardize on "$function$" as the default delimiter for the
function body.  (The original coding would use the shortest possible
dollar-quote delimiter, which seems to create unnecessarily high risk of
later conflicts with the user-modified function body.)
2008-09-06 20:18:08 +00:00
Tom Lane
2c863ca818 Implement a psql command "\ef" to edit the definition of a function.
In support of that, create a backend function pg_get_functiondef().
The psql command is functional but maybe a bit rough around the edges...

Abhijit Menon-Sen
2008-09-06 00:01:25 +00:00
Peter Eisentraut
11f53b1063 Code coverage testing with gcov. Documentation is in the regression test
chapter.

Author: Michelle Caisse <Michelle.Caisse@Sun.COM>
2008-09-05 12:11:18 +00:00
Alvaro Herrera
7ad60b49dc Fixup pg_dumpall adding --lock-wait-timeout, to match pg_dump.
David Gould
2008-08-29 17:28:43 +00:00
Peter Eisentraut
7c31742a07 Remove all traces that suggest that a non-Bison yacc might be supported, and
change build system to use only Bison.  Simplify build rules, make file names
uniform.  Don't build the token table header file where it is not needed.
2008-08-29 13:02:33 +00:00
Tom Lane
6741688b16 Fix pg_dump docs to acknowledge that you can use -Z with plain text output. Pointed out by Daniel Migowski. 2008-08-26 00:03:15 +00:00
Tom Lane
e36716a653 Add standard boilerplate sentence about when stats_temp_directory can be changed. 2008-08-25 19:03:37 +00:00
Magnus Hagander
f1e237b6b2 Unconditionally write the statsfile when SIGHUP is received, to minimize
the window during which backends have no statistics file to read.
2008-08-25 18:55:43 +00:00
Alvaro Herrera
2bb4d09cac Have man page generation work on VPATH builds too. 2008-08-25 15:34:05 +00:00
Magnus Hagander
be8d6c5c34 Make stats_temp_directory PGC_SIGHUP, and document how it may cause a temporary
"outage" of the statistics views.

This requires making the stats collector respond to SIGHUP, like the other
utility processes already did.
2008-08-25 15:11:01 +00:00
Bruce Momjian
42d313f546 Update link to developer's FAQ from main FAQ. 2008-08-23 01:55:36 +00:00
Bruce Momjian
8ddb739e9d Make "log_temp_files" super-user set only, like other logging options.
Simon Riggs
2008-08-22 18:47:07 +00:00
Bruce Momjian
8875a16ee1 Mention that pg_dump does not dump ALTER DATABASE ... SET commands;
backpatch to 8.3.X. Also fix markup that had just one bullet.
2008-08-21 22:25:44 +00:00
Alvaro Herrera
edb6a4c02a Update URL. 2008-08-21 20:15:31 +00:00
Bruce Momjian
3c35de85e7 Remove tools and documention for generating TODO.html. 2008-08-20 18:22:28 +00:00
Bruce Momjian
a8cd6cd109 TODO now in wiki, html version removed. 2008-08-20 18:21:33 +00:00