--- /dev/null
+<!-- doc/src/sgml/release-9.5.sgml -->
+<!-- See header comment in release.sgml about typical markup -->
+
+ <sect1 id="release-9-5">
+ <title>Release 9.5</title>
+
+ <note>
+ <title>Release Date</title>
+ <para>AS OF 2015-06-01</para>
+ <simpara>2015-XX-XX</simpara>
+ </note>
+
+ <sect2>
+ <title>Overview</title>
+
+ <para>
+ Major enhancements in <productname>PostgreSQL</> 9.5 include:
+ </para>
+
+ <!-- This list duplicates items below, but without authors or details-->
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <para>
+ The above items are explained in more detail in the sections below.
+ </para>
+
+ </sect2>
+
+ <sect2>
+
+ <title>Migration to Version 9.5</title>
+
+ <para>
+ A dump/restore using <xref linkend="app-pg-dumpall">, or use
+ of <xref linkend="pgupgrade">, is required for those wishing to migrate
+ data from any previous release.
+ </para>
+
+ <para>
+ Version 9.5 contains a number of changes that may affect compatibility
+ with previous releases. Observe the following incompatibilities:
+ </para>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Adjust operator precedence to match the <acronym>SQL</> standard
+ (Tom Lane)
+ </para>
+
+ <para>
+ "<" and ">" now have the same precedence as "<="
+ ">=" and "<>", and <literal>IS</> now has lower
+ precedence. <literal>NOT</> now also has symmetric precedence.
+ The <acronym>GUC</> <varname>operator_precedence_warning</> can be
+ enabled to warn about queries where the precedence has changed.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Use cast conversions for <application>PL/pgSQL</> type conversions,
+ rather than converting to and from text (Tom Lane)
+ </para>
+
+ <para>
+ This causes conversions of booleans to strings to
+ return <literal>true</> or <literal>false</>, not
+ <literal>t</>/<literal>f</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow special characters in server startup option values to be
+ escaped with a backslash (Andres Freund)
+ </para>
+
+ <para>
+ This allows characters like spaces to be passed inside option values.
+ Passing a backslash now requires supplying a double-backslash.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Set the default value of <varname>include_realm</> to not remove
+ the <acronym>GSS</> and <acronym>SSPI</> realm from the principal
+ (Stephen Frost)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix <command>REASSIGN</> and <command>ALTER OWNER TO</> to properly
+ reassign ownership of types, foreign data wrappers, and foreign
+ servers (Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove server-side <acronym>GUC</> <varname>autocommit</>, which
+ was already deprecated and non-operational (Tom Lane)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove <structname>pg_authid</>.<structname>rolcatupdate</>, as it
+ had no purpose (Adam Brightwell)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect2>
+
+ <sect2>
+ <title>Changes</title>
+
+ <para>
+ Below you will find a detailed account of the changes between
+ <productname>PostgreSQL</productname> 9.5 and the previous major
+ release.
+ </para>
+
+ <sect3>
+ <title>Server</title>
+
+ <sect4>
+ <title>Indexes</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add Block Range Indexes (<acronym>BRIN</>) (Álvaro Herrera,
+ Heikki Linnakangas, Emre Hasegeli)
+ </para>
+
+ <para>
+ <acronym>BRIN</> indexes are very compact and store the min/max
+ values for a range of heap blocks.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow queries to perform accurate distance filtering of
+ bounding-box-indexed objects (polygons, circles) using GiST indexes
+ (Alexander Korotkov, Heikki Linnakangas)
+ </para>
+
+ <para>
+ Previously, a common table expression was required to return a
+ large number of rows ordered by bounding-box distance, and then
+ filtered further with a more accurate non-bounding-box distance
+ calculation.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow GiST indexes to perform index-only scans (Anastasia
+ Lubennikova, Heikki Linnakangas, Andreas Karlsson)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>GUC</> <varname>gin_pending_list_limit</> to control
+ the size of <acronym>GIN</> pending lists (Fujii Masao)
+ </para>
+
+ <para>
+ Previously this was controlled by <varname>work_mem</>. This can
+ also be set as an index storage parameter.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Issue a warning during the creation of hash indexes because they
+ are not crash-safe (Bruce Momjian)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title>General Performance</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Improve the speed of sorting character and numeric fields (Robert
+ Haas, Peter Geoghegan, Andrew Gierth)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve hash creation performance (Tomas Vondra, Teodor Sigaev,
+ Tom Lane)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve concurrency of shared buffer replacement (Robert Haas,
+ Amit Kapila)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve concurrent locking and buffer scan performance (Andres
+ Freund, Kevin Grittner)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Speed up <acronym>CRC</> (cyclic redundancy check) computations
+ (Abhijit Menon-Sen, Heikki Linnakangas)
+ </para>
+
+ <para>
+ Also use <acronym>CPU</> instructions for <acronym>CRC</>
+ calculations, if supported
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title>Monitoring</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add per-table autovacuum logging control via
+ <varname>log_min_autovacuum_duration</> (Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>GUC</> variable <varname>cluster_name</> (Thomas
+ Munro)
+ </para>
+
+ <para>
+ This string, set in <filename>postgresql.conf</>, allows clients
+ to query the cluster name. This name also appears in the process
+ title, allowing for easier grouping of processes belonging to
+ the same cluster.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Prevent non-superusers from changing <varname>log_disconnections</>
+ on connection startup (Fujii Masao)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title><acronym>SSL</></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Check <quote>Subject Alternative Names</> in <acronym>SSL</>
+ server certificates, if present (Alexey Klyukin)
+ </para>
+
+ <para>
+ Their presence replaces checks against the certificate's
+ <quote>Common Name</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add system view <structname>pg_stat_ssl</> to report
+ <acronym>SSL</> connection information (Magnus Hagander)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>libpq</> function <function>PQsslAttribute()</>
+ that returns <acronym>SSL</> information (Heikki Linnakangas)
+ </para>
+
+ <para>
+ While <function>PQgetssl()</> can still be used
+ to then call <productname>OpenSSL</> functions,
+ <function>PQsslAttribute()</> returns <acronym>SSL</>
+ information in an <acronym>SSL</>-implementation-independent way.
+ (Future versions of libpq might support other <acronym>SSL</>
+ implementations.)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Have <application>libpq</> honor any <productname>OpenSSL</>
+ thread callbacks (Jan Urbanski)
+ </para>
+
+ <para>
+ Previously they were overwritten.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title>Server Settings</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Replace <varname>checkpoint_segments</> with
+ <varname>min_wal_size</> and <varname>max_wal_size</> (Heikki
+ Linnakangas)
+ </para>
+
+ <para>
+ This allows the allocation of a large number of <acronym>WAL</>
+ files without keeping them if they are not needed.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>GUC</> <varname>wal_compression</> to enable
+ compression of full page images stored in <acronym>WAL</>
+ (Rahila Syed, Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow the recording of transaction commit timestamps when
+ <acronym>GUC</> <varname>track_commit_timestamp</> is enabled
+ (Álvaro Herrera, Petr Jelinek)
+ </para>
+
+ <para>
+ Timestamp information can be accessed using
+ functions <function>pg_xact_commit_timestamp()</> and
+ <function>pg_last_committed_xact()</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <varname>local_preload_libraries</> to be set by
+ <command>ALTER ROLE SET</> (Peter Eisentraut, Kyotaro Horiguchi)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow running autovacuum workers to respond to configuration
+ parameter changes (Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Make <acronym>GUC</> <varname>debug_assertions</> read-only
+ (Andres Freund)
+ </para>
+
+ <para>
+ This means that assertions can no longer be turned off once enabled
+ at compile-time, allowing for more efficient code optimization.
+ This also removed the postgres <option>-A</> option.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow setting <varname>effective_io_concurrency</> on systems
+ where it has no effect (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add environment variables <envar>PG_OOM_ADJUST_FILE</> and
+ <envar>PG_OOM_ADJUST_VALUE</> to control Linux <acronym>OOM</>
+ killer (Gurjeet Singh)
+ </para>
+
+ <para>
+ The previous <acronym>OOM</> control involved a compile-time
+ option.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add function and view <function>pg_file_settings</> to show
+ the source of <acronym>GUC</> values set in configuration files
+ (Sawada Masahiko)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <structname>pending_restart</> to the system view
+ <structname>pg_settings</> to indicate a change is pending a
+ restart (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <command>ALTER SYSTEM</> values to be reset with
+ <command>ALTER SYSTEM RESET</> (Vik Fearing)
+ </para>
+
+ <para>
+ This removes the setting from <filename>postgresql.auto.conf</>.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Replication and Recovery</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <filename>recovery.conf</> parameter
+ <varname>recovery_target_action</> to control post-recovery
+ activity (Petr Jelinek)
+ </para>
+
+ <para>
+ <acronym>GUC</> <varname>pause_at_recovery_target</> was also
+ removed.
+ </para>
+ </listitem>
+
+
+ <listitem>
+ <para>
+ Add <varname>archive_mode</> <literal>always</> to allow standbys
+ to always archive received <acronym>WAL</> files (Fujii Masao)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>GUC</> <varname>wal_retrieve_retry_interval</> to
+ control <acronym>WAL</> read retry after failure (Alexey Vasiliev,
+ Michael Paquier)
+ </para>
+
+ <para>
+ This is particularly helpful for warm standbys.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Archive <acronym>WAL</> files with suffix <literal>.partial</>
+ during standby promotion (Heikki Linnakangas)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>GUC</> <varname>log_replication_commands</> to log
+ replication commands (Fujii Masao)
+ </para>
+
+ <para>
+ By default, replication commands,
+ e.g. <literal>IDENTIFY_COMMAND</>, are not logged, even when
+ <varname>log_statements</> is set to <literal>all</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow the labeling of the origin of logical replication changes
+ (Andres Freund)
+ </para>
+
+ <para>
+ This helps with change tracking.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Report the backends holding replication slots in
+ <structname>pg_replication_slots</> (Craig Ringer)
+ </para>
+
+ <para>
+ The new output column is <structname>active_pid</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <filename>recovery.conf</>'s <varname>primary_conninfo</>
+ to use connection <acronym>URI</>s, e.g. <literal>postgres://</>
+ (Alex Shulgin)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect3>
+
+ <sect3>
+ <title>Queries</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow <command>INSERTS</> that would generate constraint conflicts
+ to be turned into <command>UPDATE</>s or ignored (Peter Geoghegan,
+ Heikki Linnakangas, Andres Freund)
+ </para>
+
+ <para>
+ The syntax is <command>INSERT ... ON CONFLICT DO NOTHING/UPDATE</>.
+ This is the Postgres implementation of the popular
+ <command>UPSERT</> command.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <literal>GROUP BY</> analysis functions <literal>GROUPING
+ SETS</>, <literal>CUBE</> and <literal>ROLLUP</> (Andrew Gierth,
+ Atri Sharma)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow multi-column <command>UPDATE</>s with a single subselect
+ (Tom Lane)
+ </para>
+
+ <para>
+ This is accomplished using the syntax <command>UPDATE tab SET
+ (col1, col2, ...) = (SELECT ...)</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add new <command>SELECT</> option <literal>SKIP LOCKED</> to skip
+ locked rows (Thomas Munro)
+ </para>
+
+ <para>
+ This does not throw an error for locked rows like
+ <literal>NOWAIT</> does.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <command>SELECT</> option <literal>TABLESAMPLE</> to return
+ a subset of a table (Petr Jelinek)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Suggest possible matches for mistyped column names (Peter
+ Geoghegan, Robert Haas)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect3>
+
+ <sect3>
+ <title>Utility Commands</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add more details about sort ordering in <command>EXPLAIN</> output
+ (Marius Timmer, Lukas Kreft, Arne Scheffer)
+ </para>
+
+ <para>
+ Details include <literal>COLLATE</>, <literal>DESC</>,
+ <literal>USING</>, and <literal>NULLS FIRST</><literal>/LAST</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Have <command>VACUUM</> log the number of pages skipped due to pins
+ (Jim Nasby)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Have <command>TRUNCATE</> properly update the <literal>pg_stat</>*
+ tuple counters (Alexander Shulgin)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><xref linkend="SQL-REINDEX"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow <command>REINDEX</> to reindex an entire schema using the
+ <literal>SCHEMA</> option (Sawada Masahiko)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <literal>VERBOSE</> option to <command>REINDEX</> (Fujii Masao)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Prevent <command>REINDEX DATABASE</> and <command>SCHEMA</>
+ from outputting object names, unless <literal>VERBOSE</> is used
+ (Simon Riggs)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove obsolete <literal>FORCE</> option from <command>REINDEX</>
+ (Fujii Masao)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+ </sect3>
+
+ <sect3>
+ <title>Object Manipulation</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add row-level security control (Craig Ringer, KaiGai Kohei,
+ Adam Brightwell, Dean Rasheed, Stephen Frost)
+ </para>
+
+ <para>
+ This controls viewing and adding/modifying rows via new commands
+ <command>CREATE</>/<command>ALTER</>/<command>DROP POLICY</>
+ and <command>ALTER TABLE ... ENABLE/DISABLE ROW SECURITY</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow control of table <acronym>WAL</> logging after table
+ creation with <command>ALTER TABLE .. SET LOGGED / UNLOGGED</>
+ (Fabrízio de Royes Mello)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <literal>IF NOT EXISTS</> clause to <command>CREATE TABLE
+ AS</>, <command>CREATE INDEX</>, <command>CREATE SEQUENCE</>,
+ and <command>CREATE MATERIALIZED VIEW</> (Fabrízio de
+ Royes Mello)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add support for <literal>IF EXISTS</> to <command>ALTER TABLE
+ ... RENAME CONSTRAINT</> (Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <literal>CURRENT</><literal>/SESSION_USER</> to specify the
+ current user in certain (Kyotaro Horiguchi, Álvaro Herrera)
+ </para>
+
+ <para>
+ Commands include <command>ALTER USER</>, <command>ALTER
+ GROUP</>, <command>ALTER ROLE</>, <command>GRANT</>, and various
+ <command>ALTER OBJECT / OWNER TO</> commands.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow comments on domain constraints (Álvaro Herrera)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Reduce lock levels of some create and alter trigger and foreign
+ key commands (Simon Riggs, Andreas Karlsson)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <command>LOCK TABLE .. ROW EXCLUSIVE MODE</> for those with
+ <command>INSERT</> privileges (Stephen Frost)
+ </para>
+
+ <para>
+ Previously only <command>UPDATE</>, <command>DELETE</>, and
+ <command>TRUNCATE</> privileges allowed this.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Apply table and domain <literal>CHECK</> constraints in name order
+ (Tom Lane)
+ </para>
+
+ <para>
+ The previous order was indeterminate.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <command>CREATE</>/<command>ALTER DATABASE</> to manipulate
+ <structname>datistemplate</> and <structname>datallowconn</>
+ (Vik Fearing)
+ </para>
+
+ <para>
+ This allows these database settings to be changed more easily
+ than modifying the <structname>pg_database</> system table.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Have <command>CREATE TABLE AS</> and <command>REFRESH</> return
+ an <type>OID</> (Álvaro Herrera)
+ </para>
+
+ <para>
+ RETURN WHERE
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><xref linkend="SQL-CREATEFOREIGNDATAWRAPPER"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add support for <command>IMPORT FOREIGN SCHEMA</> (Ronan Dunklau,
+ Michael Paquier, Tom Lane)
+ </para>
+
+ <para>
+ This allows the creation of local foreign tables definitions
+ that match the remote table structure. Currently, only the
+ <application>postgres_fdw</> foreign data wrapper supports this
+ feature.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow foreign tables to participate in inheritance (Shigeru Hanada,
+ Etsuro Fujita)
+ </para>
+
+ <para>
+ This also allows foreign tables to mark check constraints as not
+ valid, and to set storage and <type>OID</> characteristics.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <literal>CHECK</> constraints to be placed on foreign tables
+ (Shigeru Hanada, Etsuro Fujita)
+ </para>
+
+ <para>
+ These checks are assumed to be enforced on the remote server,
+ and are not checked locally. However, they are considered for
+ optimization and constraint-exclusion checking.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow foreign data wrappers and custom scans to implement join
+ pushdown (KaiGai Kohei)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title><xref linkend="SQL-CREATEEVENTTRIGGER"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <function>pg_event_trigger_ddl_commands</> set-returning
+ function, which returns <acronym>DDL</> activity associated with
+ event triggers (Álvaro Herrera)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow event triggers on table rewrites caused by <command>ALTER
+ TABLE</> (Dimitri Fontaine)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add event trigger support for database-level
+ <command>COMMENT</>, <command>SECURITY LABEL</>, and
+ <command>GRANT</>/<command>REVOKE</> (Álvaro Herrera)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add columns to the output of
+ <function>pg_event_trigger_dropped_objects</> (Álvaro
+ Herrera)
+ </para>
+
+ <para>
+ This allows simpler processing of delete operations.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Data Types</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow the <type>XML</> data type to accept empty or all-whitespace
+ values (Peter Eisentraut)
+ </para>
+
+ <para>
+ This is required by the <acronym>SQL</>/<acronym>XML</>
+ specification.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix <type>XML</> xpath handling to return namespace declarations
+ even if the namespace is in a parent element (Ali Akbar)
+ </para>
+
+ <para>
+ Previously the namespace was not returned, leading to invalid
+ <type>XML</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <type>macaddr</> input using the format
+ <literal>xxxx-xxxx-xxxx</> (Herwin Weststrate)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Tighten specification of <type>INTERVAL</> precision specifications
+ (Bruce Momjian)
+ </para>
+
+ <para>
+ Only allow interval precision to be specified after the
+ <literal>INTERVAL</> keyword if no units are specified.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add selectivity estimators for <type>INET</>/<type>CIDR</> operators
+ and improve estimators for text search functions (Emre Hasegeli,
+ Tom Lane)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><link linkend="datatype-json"><acronym>JSON</></link></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <type>JSONB</> functions <function>jsonb_set()</> and
+ <function>jsonb_pretty</> (Dmitry Dolgov, Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add several generator functions for <type>JSONB</> that exist
+ for <type>JSON</> (Andrew Dunstan)
+ </para>
+
+ <para>
+ The functions are <function>to_jsonb()</>,
+ <function>jsonb_object()</>, <function>jsonb_build_object()</>,
+ <function>jsonb_build_array()</>, <function>jsonb_agg()</>,
+ and <function>jsonb_object_agg()</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Reduce casting requirements to/from <type>JSON</> and
+ <type>JSONB</> (Tom Lane)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <type>TEXT</>, <type>TEXT</> array, and <type>INTEGER</>
+ values to be subtracted from <type>JSONB</> documents (Dmitry
+ Dolgov, Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <type>JSONB</> operator || (Dmitry Dolgov, Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <function>json_strip_nulls()</> and
+ <function>jsonb_strip_nulls()</> functions to remove <type>JSON</>
+ null values from documents (Andrew Dunstan)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Functions</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <function>generate_series()</> for <type>NUMERIC</> values
+ (Plato Malugin)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <function>array_agg()</> and <function>ARRAY()</> to take
+ arrays as inputs (Ali Akbar, Tom Lane)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add functions <function>array_position()</> and
+ <function>array_positions()</> to return subscripts of array values
+ (Pavel Stehule)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <type>point</>-to-<type>polygon</> distance operator
+ (<->) (Alexander Korotkov)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow multi-byte characters as escape in <literal>SIMILAR TO</>
+ and <literal>SUBSTRING</> (Jeff Davis)
+ </para>
+
+ <para>
+ Previously, only a single-byte character was allowed as an escape.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <function>width_bucket()</> which supports any sortable data
+ type and non-uniform bucket widths (Petr Jelinek)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow => to specify named parameters in function calls
+ (Pavel Stehule)
+ </para>
+
+ <para>
+ User-defined => operators have been issuing warnings since
+ Postgres 9.0, and were removed in hstore in 9.2. Previously only
+ <literal>:=</> could be used.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <acronym>POSIX</>-compliant rounding for platforms that use
+ Postgres-supplied rounding functions (Pedro Gimeno Fortea)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title>System Information Functions and Views</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add function <function>pg_get_object_address()</> to return
+ <type>OID</>s that uniquely identify an object (Álvaro
+ Herrera)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add function <function>pg_identify_object_as_address()</> to return
+ object information based on <type>OID</>s (Álvaro Herrera)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Loosen security checks for viewing <structname>pg_stat_activity</>,
+ <function>pg_cancel_backend()</>, and
+ <function>pg_terminate_backend</> (Stephen Frost)
+ </para>
+
+ <para>
+ Now, role membership is sufficient; previously only the same
+ role could perform such operations.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <function>pg_stat_get_snapshot_timestamp()</> to output the
+ timestamp of the statistics snapshot (Matt Kelly)
+ </para>
+
+ <para>
+ WHAT IS A STATISTICS SNAPSHOT?
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <function>mxid_age()</> to compute multi-xid age (Bruce
+ Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add data type <type>regrole</> that returns the <type>OID</>
+ of a role (Kyotaro Horiguchi)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add data type <type>regnamespace</> that returns the <type>OID</>
+ of a schema (Kyotaro Horiguchi)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title>Aggregates</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <function>MIN()</>/<function>MAX()</> aggregates for
+ <type>INET</>/<type>CIDR</> data types (Haribabu Kommi)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Use 128-bit integers, where supported, as aggregate accumulators
+ (Andreas Karlsson)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Server-Side Languages</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Improve support for composite types in <application>PL/Python</>
+ (Ed Behn, Ronan Dunklau)
+ </para>
+
+ <para>
+ This allows <application>PL/Python</> functions to return arrays
+ of composite types.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Reduce lossiness of <application>PL/Python</> floating value
+ conversions (Marko Kreen)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add specification of conversion routines to/from <acronym>SQL</>
+ data types to procedural languages data types (Peter Eisentraut)
+ </para>
+
+ <para>
+ This adds new commands <command>CREATE</>/<command>DROP
+ TRANSFORM</>. This also adds transformations between
+ <application>hstore</> and <application>ltree</> to/from
+ <application>PL/Perl</> and <application>PL/Python</>.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><link linkend="plpgsql">PL/pgSQL</link> Server-Side Language</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Improve <application>PL/pgSQL</> array performance (Tom Lane)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <command>ASSERT</> statement in <application>PL/pgSQL</>
+ (Pavel Stehule)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow more <application>PL/pgSQL</> keywords to be used as
+ identifiers (Tom Lane)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Client Applications</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Move <application>pg_archivecleanup</>,
+ <application>pg_test_fsync</>, <application>pg_test_timing</>,
+ and <application>pg_xlogdump</> from <filename>contrib</> to
+ <filename>src/bin</> (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <application>pg_receivexlog</> to manage physical replication
+ slots (Michael Paquier)
+ </para>
+
+ <para>
+ This is controlled via new <option>--create-slot</> and
+ <option>--drop-slot</> options.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow the <application>pg_receivexlog</> to synchronously flush
+ <acronym>WAL</> to storage using <option>--synchronous</> (Furuya
+ Osamu, Fujii Masao)
+ </para>
+
+ <para>
+ Without this, <acronym>WAL</> files are fsynced only on close.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <command>vacuumdb</> to vacuum in parallel using
+ <option>--jobs</> (Dilip Kumar)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <option>--verbose</> option to <application>reindexdb</>
+ (Sawada Masahiko)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Have <application>pg_basebackup</> use a tablespace mapping file,
+ to allow for file paths of 100+ characters in length (Amit Kapila)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><xref linkend="APP-PSQL"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow <application>psql</> to produce AsciiDoc output (Szymon Guz)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <literal>errors</> mode to <application>psql</>'s
+ <varname>ECHO</> variable to display only failed commands
+ (Pavel Stehule)
+ </para>
+
+ <para>
+ This can also be enabled with the <application>psql</>
+ <option>-b</> option.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow column, header, and border control to <application>psql</>'s
+ Unicode style (Pavel Stehule)
+ </para>
+
+ <para>
+ Single or double output is supported; the default is
+ <literal>single</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>psql</> <envar>PROMPT</> variable option
+ (<literal>%l</>) to display the multi-line statement line number
+ (Sawada Masahiko)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>psql</> setting <varname>pager_min_lines</>
+ setting to control pager invocation (Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>psql</> line counting used when deciding
+ to invoke the pager (Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>psql</> tab completion when setting the
+ <varname>search_path</> variable (Jeff Janes)
+ </para>
+
+ <para>
+ Currently only the first schema can be tab-completed.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>psql</> tab-completion for triggers and rules
+ (Andreas Karlsson)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect5>
+ <title><link linkend="APP-PSQL-meta-commands">Backslash Commands</link></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <application>psql</> <command>\?</> help sections
+ <literal>variables</> and <literal>options</> (Pavel Stehule)
+ </para>
+
+ <para>
+ <literal>variables</> outputs <application>psql</> variables
+ and <literal>options</> shows command-line options.
+ <command>\? commands</> is the default output. This help
+ information can also be output via <literal>--help=section</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Show tablespace size in <application>psql</>'s <literal>\db+</>
+ (Fabrízio de Royes Mello)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Show data type owners in <application>psql</>'s <literal>\dT+</>
+ (Magnus Hagander)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <application>psql</> <command>\watch</> to output
+ <command>\timing</> information (Fujii Masao)
+ </para>
+
+ <para>
+ Also prevent <option>--echo-hidden</> from echoing
+ <command>\watch</> queries.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <application>psql</>'s <literal>\sf</> and <literal>\ef</>
+ to honor <envar>ECHO_HIDDEN</> (Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>psql</> tab completion for <command>\set</>,
+ <command>\unset</>, and <literal>:variable</> names (Pavel
+ Stehule)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow tab completion of <application>psql</> <literal>\c</>
+ role names (Ian Barwick)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect5>
+
+ </sect4>
+
+ <sect4>
+ <title><xref linkend="APP-PGDUMP"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow <application>pg_dump</> to share a snapshot taken by another
+ session using <option>--snapshot</> (Simon Riggs, Michael Paquier)
+ </para>
+
+ <para>
+ The remote snapshot must have been exported by
+ <function>pg_export_snapshot()</> or been defined as a
+ logical replication slot. This can be used by parallel
+ <application>pg_dump</> to use a consistent snapshot across
+ <application>pg_dump</> processes.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Always have <application>pg_dump</> print server and
+ <application>pg_dump</> versions (Jing Wang)
+ </para>
+
+ <para>
+ Previously, version information was only printed in
+ <option>--verbose</> mode.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title><xref linkend="app-pg-ctl"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Change <application>pg_ctl</> default shutdown mode from
+ <literal>smart</> to <literal>fast</> (Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow multiple <application>pg_ctl</> <option>-o</> options to
+ be appended (Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow control of <application>pg_ctl</>'s event source logging
+ on <systemitem class="osname">MS Windows</> (MauMau)
+ </para>
+
+ <para>
+ This only controls <application>pg_ctl</>, not the server, which
+ has separate settings in <filename>postgresql.conf</>.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ <sect4>
+ <title><xref linkend="pgupgrade"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Move <application>pg_upgrade</> from <filename>contrib</> to
+ <filename>src/bin</> (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow multiple <application>pg_upgrade</>
+ <option>-o</>/<option>-O</> options to be appended (Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve database collation comparisons in
+ <application>pg_upgrade</> (Heikki Linnakangas)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Document the use of <application>rsync</> for standby server
+ upgrades using <application>pg_upgrade</> (Stephen Frost,
+ Bruce Momjian)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove <application>pg_upgrade</> support for 8.3 old clusters
+ (Bruce Momjian)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Source Code</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Simplify <acronym>WAL</> record format (Heikki Linnakangas)
+ </para>
+
+ <para>
+ This allows external tools to more easily process <acronym>WAL</>
+ files.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add basic atomics <acronym>API</> support (Andres Freund, Oskari
+ Saarenmaa)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add native compiler and memory barriers for <productname>Solaris
+ Studio</> (Oskari Saarenmaa)
+ </para>
+
+ <para>
+ IS THIS PART OF ATOMICS?
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow custom path and scan methods (KaiGai Kohei, Tom Lane)
+ </para>
+
+ <para>
+ This allows extensions greater control over the optimizer and
+ executor.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow foreign data wrappers to do post-filter locking (Etsuro
+ Fujita)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve parallel execution infrastructure (Robert Haas, Amit
+ Kapila, Noah Misch, Rushabh Lathia, Jeevan Chalke)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove <productname>Alpha</> (<acronym>CPU</>) and <systemitem
+ class="osname">Tru64</> (OS) ports (Andres Freund)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Remove swap-byte-based spinlock implementation for
+ <acronym>ARM</>v5 and earlier <acronym>CPU</>s (Robert Haas)
+ </para>
+
+ <para>
+ <acronym>ARM</>v5's weak memory ordering made this locking
+ implementation unsafe. Spinlock support is still possible on
+ newer gcc implementations with atomics support.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Generate an error when excessively long (100+ character) file
+ paths are written to tar files (Peter Eisentraut)
+ </para>
+
+ <para>
+ Tar does not support such overly-long paths.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Change columns <structname>pg_seclabel</>.<structname>provider</>
+ and <structname>pg_shseclabel</>.<structname>provider</> to
+ <type>TEXT</> (Tom Lane)
+ </para>
+
+ <para>
+ This allows these columns to store 64+ characters.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title>MS Windows</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Allow higher-precision timestamp resolution on <systemitem
+ class="osname">Windows 8</> or <systemitem class="osname">Windows
+ Server 2012</> and later Windows systems (Craig Ringer)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Install shared libraries to <filename>bin</> in <systemitem
+ class="osname">MS Windows</> (Peter Eisentraut, Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Install <filename>src/test/modules</> together with
+ <filename>contrib</> on <productname>MSVC</> builds (Michael
+ Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow configure's <option>--with-extra-version</> to be honored
+ by the <productname>MSVC</> build (Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Pass <envar>PGFILEDESC</> into <productname>MSVC</> contrib builds
+ (Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add icons to all <productname>MSVC</>-built binaries (Noah Misch)
+ </para>
+
+ <para>
+ MinGW already had such icons.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add optional-argument support to the internal
+ <function>getopt_long()</> implementation (Michael Paquier,
+ Andres Freund)
+ </para>
+
+ <para>
+ This is used by the <productname>MSVC</> build.
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ <sect3>
+ <title>Additional Modules</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Add <application>pg_rewind</>, which allows re-synchronizing a
+ master server after failback (Heikki Linnakangas)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add statistics for minimum, maximum, mean, and standard deviation
+ times to <application>pg_stat_statements</> (Mitsumasa Kondo,
+ Andrew Dunstan)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>pgcrypto</> function
+ <function>pgp_armor_headers()</> to extract <productname>PGP</>
+ armor headers (Marko Tiikkaja, Heikki Linnakangas)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow empty replacement strings in <application>unaccent</>
+ (Mohammad Alhashash)
+ </para>
+
+ <para>
+ This is useful in languages where diacritic signs are represented
+ as separate characters.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow multi-character source strings in <application>unaccent</>
+ (Tom Lane)
+ </para>
+
+ <para>
+ This could be useful in languages where diacritic signs are
+ represented as separate characters. It also allows more complex
+ unaccent dictionaries.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <filename>contrib</> modules <application>tsm_system_rows</>
+ and <application>tsm_system_time</> to allow additional table
+ sampling methods (Petr Jelinek)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add <application>pg_xlogdump</> option <option>--stats</> to
+ display summary statistics (Abhijit Menon-Sen)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <acronym>GIN</> index inspection functions to
+ <application>pageinspect</> (Heikki Linnakangas, Peter Geoghegan,
+ Michael Paquier)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <application>pgstattuple</> to report approximate answers
+ with less overhead using <function>pgstattuple_approx()</>
+ (Abhijit Menon-Sen)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Move <application>pg_upgrade_support</> code into backend and
+ remove the module (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Move <application>dummy_seclabel</>, <application>test_shm_mq</>,
+ <application>test_parser</>, and <application>worker_spi</>
+ from <filename>contrib</> to <filename>src/test/modules</>
+ (Álvaro Herrera)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ <sect4>
+ <title><xref linkend="pgbench"></title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Move pgbench from <filename>contrib</> to <filename>src/bin</>
+ (Peter Eisentraut)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow counting of pgbench transactions that take over a specified
+ amount of time (Fabien Coelho)
+ </para>
+
+ <para>
+ This is controlled by new <option>--latency-limit</> option.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow pgbench to generate Gaussian/exponential distributions
+ using <command>\setrandom</> (Kondo Mitsumasa, Fabien Coelho)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add information about buffer pins to <application>pg_buffercache</>
+ display (Andres Freund)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Allow <application>pgbench</>'s <command>\set</> command to handle
+ multi-operator expressions (Robert Haas, Fabien Coelho)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect4>
+
+ </sect3>
+
+ </sect2>
+
+ </sect1>
projects / postgresql / commitdiff