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2012-01-26Add deadlock counter to pg_stat_databaseMagnus Hagander
Adds a counter that tracks number of deadlocks that occurred in each database to pg_stat_database. Magnus Hagander, reviewed by Jaime Casanova
2012-01-26Track temporary file count and size in pg_stat_databaseMagnus Hagander
Add counters for number and size of temporary files used for spill-to-disk queries for each database to the pg_stat_database view. Tomas Vondra, review by Magnus Hagander
2012-01-25Allow pg_basebackup from standby node with safety checking.Simon Riggs
Base backup follows recommended procedure, plus goes to great lengths to ensure that partial page writes are avoided. Jun Ishizuka and Fujii Masao, with minor modifications
2012-01-25Add pg_trigger_depth() functionAlvaro Herrera
This reports the depth level of triggers currently in execution, or zero if not called from inside a trigger. No catversion bump in this patch, but you have to initdb if you want access to the new function. Author: Kevin Grittner
2012-01-24Add new replication mode synchronous_commit = 'write'.Simon Riggs
Replication occurs only to memory on standby, not to disk, so provides additional performance if user wishes to reduce durability level slightly. Adds concept of multiple independent sync rep queues. Fujii Masao and Simon Riggs
2012-01-23ALTER <thing> [IF EXISTS] ... allows silent DDL if required,Simon Riggs
e.g. ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar Pavel Stehule
2012-01-22Typo fixMagnus Hagander
Guillaume Lelarge
2012-01-20Get rid of itemizedlist inside tableMagnus Hagander
This renders badly on the website, and in this particular case also doesn't actually add anything to the readability...
2012-01-20Further doc cleanups from the pg_stat_activity changesMagnus Hagander
Fujii Masao
2012-01-19Triggered change notifications.Robert Haas
Kevin Grittner, reviewed (in earlier versions) by Álvaro Herrera
2012-01-19Clarify that bgwriter no longer handles checkpoints.Robert Haas
Text by Peter Geoghegan.
2012-01-19Add bitwise AND, OR, and NOT operators for macaddr data type.Robert Haas
Brendan Jurd, reviewed by Fujii Masao
2012-01-19Separate state from query string in pg_stat_activityMagnus Hagander
This separates the state (running/idle/idleintransaction etc) into it's own field ("state"), and leaves the query field containing just query text. The query text will now mean "current query" when a query is running and "last query" in other states. Accordingly,the field has been renamed from current_query to query. Since backwards compatibility was broken anyway to make that, the procpid field has also been renamed to pid - along with the same field in pg_stat_replication for consistency. Scott Mead and Magnus Hagander, review work from Greg Smith
2012-01-19Make pg_relation_size() and friends return NULL if the object doesn't exist.Heikki Linnakangas
That avoids errors when the functions are used in queries like "SELECT pg_relation_size(oid) FROM pg_class", and a table is dropped concurrently. Phil Sorber
2012-01-18PL/Python: Update examplePeter Eisentraut
Change the usesavedplan() example to use a more modern Python style using the .setdefault() function.
2012-01-16Disallow merging ONLY constraints in children tablesAlvaro Herrera
When creating a child table, or when attaching an existing table as child of another, we must not allow inheritable constraints to be merged with non-inheritable ones, because then grandchildren would not properly get the constraint. This would violate the grandparent's expectations. Bugs noted by Robert Haas. Author: Nikhil Sontakke
2012-01-15Allow a user to kill his own queries using pg_cancel_backend()Magnus Hagander
Allows a user to use pg_cancel_queries() to cancel queries in other backends if they are running under the same role. pg_terminate_backend() still requires superuser permissoins. Short patch, many authors working on the bikeshed: Magnus Hagander, Josh Kupershmidt, Edward Muller, Greg Smith.
2012-01-14Make superuser imply replication privilege. The idea of a privilege thatHeikki Linnakangas
superuser doesn't have doesn't make much sense, as a superuser can do whatever he wants through other means, anyway. So instead of granting replication privilege to superusers in CREATE USER time by default, allow replication connection from superusers whether or not they have the replication privilege. Patch by Noah Misch, per discussion on bug report #6264
2012-01-10Support CREATE TABLE (LIKE ...) with foreign tables and viewsPeter Eisentraut
Composite types are not yet supported, because parserOpenTable() rejects them.
2012-01-09Add compatibility note about grant options on GRANT reference pagePeter Eisentraut
Point out in the compatibility section that granting grant options to PUBLIC is not supported by PostgreSQL. This is already mentioned earlier, but since it concerns the information schema, it might be worth pointing out explicitly as a compatibility issue.
2012-01-07Rename the internal structures of the CREATE TABLE (LIKE ...) facilityPeter Eisentraut
The original implementation of this interpreted it as a kind of "inheritance" facility and named all the internal structures accordingly. This turned out to be very confusing, because it has nothing to do with the INHERITS feature. So rename all the internal parser infrastructure, update the comments, adjust the error messages, and split up the regression tests.
2012-01-06Fix typo, pg_types_date.h => pgtypes_date.h.Tom Lane
Spotted by Koizumi Satoru.
2012-01-05Improve ALTER DOMAIN / DROP CONSTRAINT with nonexistent constraintPeter Eisentraut
ALTER DOMAIN / DROP CONSTRAINT on a nonexistent constraint name did not report any error. Now it reports an error. The IF EXISTS option was added to get the usual behavior of ignoring nonexistent objects to drop.
2012-01-03Support for building with MS Visual Studio 2010.Andrew Dunstan
Brar Piening, reviewed by Craig Ringer.
2012-01-01Update copyright notices for year 2012.Bruce Momjian
2011-12-31Send new protocol keepalive messages to standby servers.Simon Riggs
Allows streaming replication users to calculate transfer latency and apply delay via internal functions. No external functions yet.
2011-12-26Minor enhancements to MVCC chapterAlvaro Herrera
Author: Erik Rijkers
2011-12-24Rethink representation of index clauses' mapping to index columns.Tom Lane
In commit e2c2c2e8b1df7dfdb01e7e6f6191a569ce3c3195 I made use of nested list structures to show which clauses went with which index columns, but on reflection that's a data structure that only an old-line Lisp hacker could love. Worse, it adds unnecessary complication to the many places that don't much care which clauses go with which index columns. Revert to the previous arrangement of flat lists of clauses, and instead add a parallel integer list of column numbers. The places that care about the pairing can chase both lists with forboth(), while the places that don't care just examine one list the same as before. The only real downside to this is that there are now two more lists that need to be passed to amcostestimate functions in case they care about column matching (which btcostestimate does, so not passing the info is not an option). Rather than deal with 11-argument amcostestimate functions, pass just the IndexPath and expect the functions to extract fields from it. That gets us down to 7 arguments which is better than 11, and it seems more future-proof against likely additions to the information we keep about an index path.
2011-12-23Add bytea_agg, parallel to string_agg.Robert Haas
Pavel Stehule
2011-12-22Typo fixes.Robert Haas
All noted by Jaime Casanova.
2011-12-22Add a security_barrier option for views.Robert Haas
When a view is marked as a security barrier, it will not be pulled up into the containing query, and no quals will be pushed down into it, so that no function or operator chosen by the user can be applied to rows not exposed by the view. Views not configured with this option cannot provide robust row-level security, but will perform far better. Patch by KaiGai Kohei; original problem report by Heikki Linnakangas (in October 2009!). Review (in earlier versions) by Noah Misch and others. Design advice by Tom Lane and myself. Further review and cleanup by me.
2011-12-22Add ALTER DOMAIN ... RENAMEPeter Eisentraut
You could already rename domains using ALTER TYPE, but with this new command it is more consistent with how other commands treat domains as a subcategory of types.
2011-12-21sepgsql: Check CREATE permissions for some object types.Robert Haas
KaiGai Kohei, reviewed by Dimitri Fontaine and me.
2011-12-20Add support for privileges on typesPeter Eisentraut
This adds support for the more or less SQL-conforming USAGE privilege on types and domains. The intent is to be able restrict which users can create dependencies on types, which restricts the way in which owners can alter types. reviewed by Yeb Havinga
2011-12-19Allow CHECK constraints to be declared ONLYAlvaro Herrera
This makes them enforceable only on the parent table, not on children tables. This is useful in various situations, per discussion involving people bitten by the restrictive behavior introduced in 8.4. Message-Id: 8762mp93iw.fsf@comcast.net CAFaPBrSMMpubkGf4zcRL_YL-AERUbYF_-ZNNYfb3CVwwEqc9TQ@mail.gmail.com Authors: Nikhil Sontakke, Alex Hunsaker Reviewed by Robert Haas and myself
2011-12-19Teach SP-GiST to do index-only scans.Tom Lane
Operator classes can specify whether or not they support this; this preserves the flexibility to use lossy representations within an index. In passing, move constant data about a given index into the rd_amcache cache area, instead of doing fresh lookups each time we start an index operation. This is mainly to try to make sure that spgcanreturn() has insignificant cost; I still don't have any proof that it matters for actual index accesses. Also, get rid of useless copying of FmgrInfo pointers; we can perfectly well use the relcache's versions in-place.
2011-12-18Replace simple constant pg_am.amcanreturn with an AM support function.Tom Lane
The need for this was debated when we put in the index-only-scan feature, but at the time we had no near-term expectation of having AMs that could support such scans for only some indexes; so we kept it simple. However, the SP-GiST AM forces the issue, so let's fix it. This patch only installs the new API; no behavior actually changes.
2011-12-18Remove tabs in SGML file.Bruce Momjian
2011-12-17Add SP-GiST (space-partitioned GiST) index access method.Tom Lane
SP-GiST is comparable to GiST in flexibility, but supports non-balanced partitioned search structures rather than balanced trees. As described at PGCon 2011, this new indexing structure can beat GiST in both index build time and query speed for search problems that it is well matched to. There are a number of areas that could still use improvement, but at this point the code seems committable. Teodor Sigaev and Oleg Bartunov, with considerable revisions by Tom Lane
2011-12-17Same clarification for pg_restore.Andrew Dunstan
2011-12-17Clarify the post-data status on unvalidated check constraints.Andrew Dunstan
Per gripe from Thom Brown.
2011-12-16Add --section option to pg_dump and pg_restore.Andrew Dunstan
Valid values are --pre-data, data and post-data. The option can be given more than once. --schema-only is equivalent to --section=pre-data --section=post-data. --data-only is equivalent to --section=data. Andrew Dunstan, reviewed by Joachim Wieland and Josh Berkus.
2011-12-16Fix reference to "verify-ca" and "verify-full" in a note in the docs.Heikki Linnakangas
2011-12-15include_if_exists facility for config file.Andrew Dunstan
This works the same as include, except that an error is not thrown if the file is missing. Instead the fact that it's missing is logged. Greg Smith, reviewed by Euler Taveira de Oliveira.
2011-12-14Fix docs build I inadvertantly broke.Andrew Dunstan
2011-12-14Add --exclude-table-data option to pg_dump.Andrew Dunstan
Andrew Dunstan, reviewed by Josh Berkus, Robert Haas and Peter Geoghegan. This allows dumping of a table definition but not its data, on a per table basis. Table name patterns are supported just as for --exclude-table.
2011-12-14Add support for passing cursor parameters in named notation in PL/pgSQL.Heikki Linnakangas
Yeb Havinga, reviewed by Kevin Grittner, with small changes by me.
2011-12-09Add ALTER FOREIGN DATA WRAPPER / RENAME and ALTER SERVER / RENAMEPeter Eisentraut
2011-12-07Remove spclocation field from pg_tablespaceMagnus Hagander
Instead, add a function pg_tablespace_location(oid) used to return the same information, and do this by reading the symbolic link. Doing it this way makes it possible to relocate a tablespace when the database is down by simply changing the symbolic link.
2011-12-07Create a "sort support" interface API for faster sorting.Tom Lane
This patch creates an API whereby a btree index opclass can optionally provide non-SQL-callable support functions for sorting. In the initial patch, we only use this to provide a directly-callable comparator function, which can be invoked with a bit less overhead than the traditional SQL-callable comparator. While that should be of value in itself, the real reason for doing this is to provide a datatype-extensible framework for more aggressive optimizations, as in Peter Geoghegan's recent work. Robert Haas and Tom Lane
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