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Postgres FD Implementation
Commit c1602c7a authored by Tom Lane's avatar Tom Lane
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Doc: update v10 release notes through today. 

Also, another round of copy-editing.  I merged a few items that
didn't seem to be meaningfully different from a user's perspective.
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doc/src/sgml/release-10.sgml
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...@@ -6,7 +6,7 @@ ...@@ -6,7 +6,7 @@
<formalpara> <formalpara>
<title>Release date:</title> <title>Release date:</title>
<para>2017-??-?? (current as of 2017-08-26, commit 145ca364d)</para> <para>2017-??-?? (current as of 2017-09-07, commit 08cb36417)</para>
</formalpara> </formalpara>
<sect2> <sect2>
...@@ -20,12 +20,11 @@ ...@@ -20,12 +20,11 @@
<itemizedlist> <itemizedlist>
<listitem><para>(yet to be finalized)</para></listitem>
<listitem><para>Logical replication using publish/subscribe</para></listitem> <listitem><para>Logical replication using publish/subscribe</para></listitem>
<listitem><para>Declarative Table Partitioning</para></listitem> <listitem><para>Declarative table partitioning</para></listitem>
<listitem><para>Improved Query Parallelism</para></listitem> <listitem><para>Improved query parallelism</para></listitem>
<listitem><para>Significant general performance improvements</para></listitem> <listitem><para>Significant general performance improvements</para></listitem>
<listitem><para>SCRAM-SHA-256 strong authentication</para></listitem> <listitem><para>Stronger password authentication based on SCRAM-SHA-256</para></listitem>
<listitem><para>Improved monitoring and control</para></listitem> <listitem><para>Improved monitoring and control</para></listitem>
</itemizedlist> </itemizedlist>
...@@ -56,11 +55,12 @@ ...@@ -56,11 +55,12 @@
<!-- <!--
2017-04-03 [ea69a0dea] Expand hash indexes more gradually. 2017-04-03 [ea69a0dea] Expand hash indexes more gradually.
2017-05-19 [a95410e2e] pg_upgrade: Handle hash index upgrades more smoothly. 2017-05-19 [a95410e2e] pg_upgrade: Handle hash index upgrades more smoothly.
2017-08-04 [620b49a16] hash: Increase the number of possible overflow bitmaps b
--> -->
<para> <para>
Hash indexes must be rebuilt after <application>pg_upgrade</>-ing Hash indexes must be rebuilt after <application>pg_upgrade</>-ing
from any previous major <productname>PostgreSQL</> version (Mithun from any previous major <productname>PostgreSQL</> version (Mithun
Cy, Robert Haas) Cy, Robert Haas, Amit Kapila)
</para> </para>
<para> <para>
...@@ -329,8 +329,8 @@ ...@@ -329,8 +329,8 @@
<para> <para>
Changing this setting from the default value caused queries referencing Changing this setting from the default value caused queries referencing
parent tables to not include child tables. The <acronym>SQL</> parent tables to not include child tables. The <acronym>SQL</>
standard requires such behavior and this has been the default since standard requires them to be included, however, and this has been the
<productname>PostgreSQL</> 7.1. default since <productname>PostgreSQL</> 7.1.
</para> </para>
</listitem> </listitem>
...@@ -393,8 +393,8 @@ ...@@ -393,8 +393,8 @@
<para> <para>
This removes configure's <option>--disable-integer-datetimes</> This removes configure's <option>--disable-integer-datetimes</>
option. Floating-point timestamps have not been the option. Floating-point timestamps have few advantages and have not
default since <productname>PostgreSQL</> 8.3 and have few advantages. been the default since <productname>PostgreSQL</> 8.3.
</para> </para>
</listitem> </listitem>
...@@ -403,7 +403,7 @@ ...@@ -403,7 +403,7 @@
2016-10-11 [2f1eaf87e] Drop server support for FE/BE protocol version 1.0. 2016-10-11 [2f1eaf87e] Drop server support for FE/BE protocol version 1.0.
--> -->
<para> <para>
Remove support for client/server protocol version 1.0 (Tom Lane) Remove server support for client/server protocol version 1.0 (Tom Lane)
</para> </para>
<para> <para>
...@@ -424,8 +424,8 @@ ...@@ -424,8 +424,8 @@
<para> <para>
This replaces the hardcoded, undocumented file This replaces the hardcoded, undocumented file
name <filename>dh1024.pem</>. Note that <filename>dh1024.pem</> is name <filename>dh1024.pem</>. Note that <filename>dh1024.pem</> is
no longer examined by default; you must set this option to use custom no longer examined by default; you must set this option if you want
DH parameters. to use custom DH parameters.
</para> </para>
</listitem> </listitem>
...@@ -485,9 +485,9 @@ ...@@ -485,9 +485,9 @@
</para> </para>
<para> <para>
These were deprecated since <productname>PostgreSQL</> 9.1. Instead, These had been deprecated since <productname>PostgreSQL</> 9.1.
use <command>CREATE EXTENSION</> and <command>DROP EXTENSION</> Instead, use <command>CREATE EXTENSION</> and <command>DROP
directly. EXTENSION</> directly.
</para> </para>
</listitem> </listitem>
...@@ -626,25 +626,41 @@ ...@@ -626,25 +626,41 @@
<listitem> <listitem>
<!-- <!--
2016-08-23 [77e290682] Create an SP-GiST opclass for inet/cidr. 2017-02-27 [30df93f69] hash: Refactor overflow page allocation.
2017-03-14 [c11453ce0] hash: Add write-ahead logging support.
2017-02-27 [b0f18cb77] hash: Refactor bucket squeeze code.
--> -->
<para> <para>
Add <acronym>SP-GiST</> index support for <type>INET</> and Add write-ahead logging support to hash indexes (Amit Kapila)
<type>CIDR</> data types (Emre Hasegeli)
</para> </para>
<para> <para>
These data types already had GiST support. This makes hash indexes crash-safe and replicatable.
The former warning message about their use is removed.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<!-- <!--
2017-03-23 [218f51584] Reduce page locking in GIN vacuum 2016-11-30 [6d46f4783] Improve hash index bucket split behavior.
2017-02-07 [293e24e50] Cache hash index's metapage in rel->rd_amcache.
2017-03-15 [6977b8b7f] Port single-page btree vacuum logic to hash indexes.
2017-04-03 [ea69a0dea] Expand hash indexes more gradually.
2017-08-04 [620b49a16] hash: Increase the number of possible overflow bitmaps b
--> -->
<para> <para>
Reduce page locking during vacuuming of <acronym>GIN</> indexes Improve hash index performance (Amit Kapila, Mithun Cy, Ashutosh
(Andrey Borodin) Sharma)
</para>
</listitem>
<listitem>
<!--
2016-08-23 [77e290682] Create an SP-GiST opclass for inet/cidr.
-->
<para>
Add <acronym>SP-GiST</> index support for <type>INET</> and
<type>CIDR</> data types (Emre Hasegeli)
</para> </para>
</listitem> </listitem>
...@@ -658,8 +674,8 @@ ...@@ -658,8 +674,8 @@
</para> </para>
<para> <para>
Specifically, a new <link linkend="SQL-CREATEINDEX"><command>CREATE A new <link linkend="SQL-CREATEINDEX"><command>CREATE
INDEX</></> option allows auto-summarization of the INDEX</></> option enables auto-summarization of the
previous <acronym>BRIN</> page range when a new page previous <acronym>BRIN</> page range when a new page
range is created. range is created.
</para> </para>
...@@ -705,65 +721,17 @@ ...@@ -705,65 +721,17 @@
</para> </para>
</listitem> </listitem>
</itemizedlist> <listitem>
<sect5>
<title><link linkend="indexes-types">Hash Indexes</link></title>
<itemizedlist>
<listitem>
<!--
2017-02-27 [30df93f69] hash: Refactor overflow page allocation.
2017-03-14 [c11453ce0] hash: Add write-ahead logging support.
2017-02-27 [b0f18cb77] hash: Refactor bucket squeeze code.
-->
<para>
Add write-ahead logging support to hash indexes (Amit Kapila)
</para>
<para>
This makes hash indexes crash-safe and replicatable.
The former warning message about their use is removed.
</para>
</listitem>
<listitem>
<!--
2016-11-30 [6d46f4783] Improve hash index bucket split behavior.
2017-02-07 [293e24e50] Cache hash index's metapage in rel->rd_amcache.
-->
<para>
Improve hash index bucket split performance by reducing locking
requirements (Amit Kapila, Mithun Cy)
</para>
<para>
Also cache hash index meta-information for faster lookups.
</para>
</listitem>
<listitem>
<!--
2017-04-03 [ea69a0dea] Expand hash indexes more gradually.
-->
<para>
Improve efficiency of hash index growth (Amit Kapila, Mithun Cy)
</para>
</listitem>
<listitem>
<!-- <!--
2017-03-15 [6977b8b7f] Port single-page btree vacuum logic to hash indexes. 2017-03-23 [218f51584] Reduce page locking in GIN vacuum
--> -->
<para> <para>
Allow page-at-a-time hash index pruning (Ashutosh Sharma) Reduce page locking during vacuuming of <acronym>GIN</> indexes
</para> (Andrey Borodin)
</listitem> </para>
</listitem>
</itemizedlist>
</sect5> </itemizedlist>
</sect4> </sect4>
...@@ -986,17 +954,6 @@ ...@@ -986,17 +954,6 @@
<listitem> <listitem>
<!-- <!--
2017-03-18 [17f8ffa1e] Fix REFRESH MATERIALIZED VIEW to report activity to the
-->
<para>
Properly update the statistics collector during <link
linkend="SQL-REFRESHMATERIALIZEDVIEW"><command>REFRESH MATERIALIZED
VIEW</></> (Jim Mlodgenski)
</para>
</listitem>
<listitem>
<!--
2017-03-30 [25fff4079] Default monitoring roles 2017-03-30 [25fff4079] Default monitoring roles
--> -->
<para> <para>
...@@ -1010,6 +967,17 @@ ...@@ -1010,6 +967,17 @@
</para> </para>
</listitem> </listitem>
<listitem>
<!--
2017-03-18 [17f8ffa1e] Fix REFRESH MATERIALIZED VIEW to report activity to the
-->
<para>
Properly update the statistics collector during <link
linkend="SQL-REFRESHMATERIALIZEDVIEW"><command>REFRESH MATERIALIZED
VIEW</></> (Jim Mlodgenski)
</para>
</listitem>
</itemizedlist> </itemizedlist>
<sect5> <sect5>
...@@ -1120,25 +1088,17 @@ ...@@ -1120,25 +1088,17 @@
<listitem> <listitem>
<!-- <!--
2016-10-04 [6f3bd98eb] Extend framework from commit 53be0b1ad to report latch w 2016-10-04 [6f3bd98eb] Extend framework from commit 53be0b1ad to report latch w
2017-03-18 [249cf070e] Create and use wait events for read, write, and fsync op
--> -->
<para> <para>
Add <structname>pg_stat_activity</> reporting of latch wait states Add <structname>pg_stat_activity</> reporting of low-level wait
(Michael Paquier, Robert Haas) states (Michael Paquier, Robert Haas, Rushabh Lathia)
</para> </para>
<para> <para>
This includes the remaining wait events, like client reads, This change enables reporting of numerous low-level wait conditions,
client writes, and synchronous replication. including latch waits, file reads/writes/fsyncs, client reads/writes,
</para> and synchronous replication.
</listitem>
<listitem>
<!--
2017-03-18 [249cf070e] Create and use wait events for read, write, and fsync op
-->
<para>
Add <structname>pg_stat_activity</> reporting of waits on reads,
writes, and fsyncs (Rushabh Lathia)
</para> </para>
</listitem> </listitem>
...@@ -1315,8 +1275,8 @@ ...@@ -1315,8 +1275,8 @@
2017-03-27 [1b02be21f] Fsync directory after creating or unlinking file. 2017-03-27 [1b02be21f] Fsync directory after creating or unlinking file.
--> -->
<para> <para>
Perform an fsync on the directory after creating or unlinking files After creating or unlinking files, perform an fsync on their parent
(Michael Paquier) directory (Michael Paquier)
</para> </para>
<para> <para>
...@@ -1367,7 +1327,7 @@ ...@@ -1367,7 +1327,7 @@
</para> </para>
<para> <para>
Larger <acronym>WAL</> segment sizes allows for fewer A larger <acronym>WAL</> segment size allows for fewer
<xref linkend="guc-archive-command"> invocations and fewer <xref linkend="guc-archive-command"> invocations and fewer
<acronym>WAL</> files to manage. <acronym>WAL</> files to manage.
</para> </para>
...@@ -1400,7 +1360,7 @@ ...@@ -1400,7 +1360,7 @@
<para> <para>
Logical replication allows more flexibility than physical Logical replication allows more flexibility than physical
replication does, including replication between different major replication does, including replication between different major
versions of <productname>PostgreSQL</> and selective-table versions of <productname>PostgreSQL</> and selective
replication. replication.
</para> </para>
</listitem> </listitem>
...@@ -1455,7 +1415,7 @@ ...@@ -1455,7 +1415,7 @@
<para> <para>
Previously <filename>pg_hba.conf</>'s replication connection Previously <filename>pg_hba.conf</>'s replication connection
lines were commented out. This is particularly useful for lines were commented out by default. This is particularly useful for
<application><xref linkend="app-pgbasebackup"></>. <application><xref linkend="app-pgbasebackup"></>.
</para> </para>
</listitem> </listitem>
...@@ -1654,7 +1614,7 @@ ...@@ -1654,7 +1614,7 @@
<para> <para>
Previously all security policies were permissive, meaning that any Previously all security policies were permissive, meaning that any
matching policy allowed access. Optional restrictive policies must matching policy allowed access. A restrictive policy must
match for access to be granted. These policy types can be combined. match for access to be granted. These policy types can be combined.
</para> </para>
</listitem> </listitem>
...@@ -1829,7 +1789,7 @@ ...@@ -1829,7 +1789,7 @@
<para> <para>
This complements the existing support This complements the existing support
for <acronym>EUI-48</> <acronym>MAC</> addresses for <acronym>EUI-48</> <acronym>MAC</> addresses
as <type>macaddr</>. (type <type>macaddr</>).
</para> </para>
</listitem> </listitem>
...@@ -2253,22 +2213,6 @@ ...@@ -2253,22 +2213,6 @@
<listitem> <listitem>
<!-- <!--
2016-11-03 [a0f357e57] psql: Split up "Modifiers" column in \d and \dD
-->
<para>
Improve <application>psql</>'s <command>\d</> (display relation)
and <command>\dD</> (display domain) commands to show collation,
nullable, and default properties in separate columns (Peter
Eisentraut)
</para>
<para>
Previous they were shown in a single <quote>Modifiers</> column.
</para>
</listitem>
<listitem>
<!--
2017-04-01 [f833c847b] Allow psql variable substitution to occur in backtick co 2017-04-01 [f833c847b] Allow psql variable substitution to occur in backtick co
--> -->
<para> <para>
...@@ -2311,6 +2255,47 @@ ...@@ -2311,6 +2255,47 @@
<listitem> <listitem>
<!-- <!--
2017-09-06 [a6c678f01] Add psql variables showing server version and psql versi
-->
<para>
Add variables showing server version and <application>psql</> version
(Fabien Coelho)
</para>
</listitem>
<listitem>
<!--
2016-11-03 [a0f357e57] psql: Split up "Modifiers" column in \d and \dD
-->
<para>
Improve <application>psql</>'s <command>\d</> (display relation)
and <command>\dD</> (display domain) commands to show collation,
nullable, and default properties in separate columns (Peter
Eisentraut)
</para>
<para>
Previously they were shown in a single <quote>Modifiers</> column.
</para>
</listitem>
<listitem>
<!--
2017-07-27 [77cb4a1d6] Standardize describe.c's behavior for no-matching-object
-->
<para>
Make the various <command>\d</> commands handle no-matching-object
cases more consistently (Daniel Gustafsson)
</para>
<para>
They now all print the message about that to stderr, not stdout,
and the message wording is more consistent.
</para>
</listitem>
<listitem>
<!--
2016-08-18 [49917dbd7] Improve psql's tab completion for ALTER EXTENSION foo UP 2016-08-18 [49917dbd7] Improve psql's tab completion for ALTER EXTENSION foo UP
2016-08-18 [8019b5a89] Improve psql's tab completion for \l. 2016-08-18 [8019b5a89] Improve psql's tab completion for \l.
2016-09-01 [76f9dd4fa] Improve tab completion for BEGIN & START|SET TRANSACTION 2016-09-01 [76f9dd4fa] Improve tab completion for BEGIN & START|SET TRANSACTION
...@@ -2704,6 +2689,7 @@ ...@@ -2704,6 +2689,7 @@
<listitem> <listitem>
<!-- <!--
2017-06-16 [cea258b63] Teach pgindent to skip files generated by bison or flex
2017-06-21 [8ff6d4ec7] Adjust pgindent script to use pg_bsd_indent 2.0. 2017-06-21 [8ff6d4ec7] Adjust pgindent script to use pg_bsd_indent 2.0.
2017-06-21 [e3860ffa4] Initial pgindent run with pg_bsd_indent version 2.0. 2017-06-21 [e3860ffa4] Initial pgindent run with pg_bsd_indent version 2.0.
2017-06-21 [c7b8998eb] Phase 2 of pgindent updates. 2017-06-21 [c7b8998eb] Phase 2 of pgindent updates.
...@@ -2870,11 +2856,11 @@ ...@@ -2870,11 +2856,11 @@
</para> </para>
<para> <para>
If no strong random number generator can be found, configure will If no strong random number generator can be
fail unless the <link linkend="configure">configure</> found, <link linkend="configure">configure</> will fail unless
option <option>--disable-strong-random</> is used. However, with the <option>--disable-strong-random</> option is used. However, with
this option, pgcrypto functions requiring a strong random number this option, <link linkend="pgcrypto"><application>pgcrypto</></>
generator will be disabled. functions requiring a strong random number generator will be disabled.
</para> </para>
</listitem> </listitem>
...@@ -2888,6 +2874,22 @@ ...@@ -2888,6 +2874,22 @@
</para> </para>
</listitem> </listitem>
<listitem>
<!--
2017-04-06 [3f902354b] Clean up after insufficiently-researched optimization of
-->
<para>
<filename>tupconvert.c</> functions no longer convert tuples just to
embed a different composite-type OID in them (Ashutosh Bapat, Tom Lane)
</para>
<para>
The majority of callers don't care about the composite-type OID;
but if the result tuple is to be used as a composite Datum, steps
should be taken to make sure the correct OID is inserted in it.
</para>
</listitem>
<listitem> <listitem>
<!-- <!--
2016-10-11 [2b860f52e] Remove "sco" and "unixware" ports. 2016-10-11 [2b860f52e] Remove "sco" and "unixware" ports.
...@@ -2956,31 +2958,27 @@ ...@@ -2956,31 +2958,27 @@
<listitem> <listitem>
<!-- <!--
2016-10-21 [7012b132d] postgres_fdw: Push down aggregates to remote servers. 2016-10-21 [7012b132d] postgres_fdw: Push down aggregates to remote servers.
2017-04-24 [332bec1e6] postgres_fdw: Fix join push down with extensions
--> -->
<para> <para>
Push aggregates to foreign data wrapper servers, where possible In <link linkend="postgres-fdw"><application>postgres_fdw</></>,
push aggregate functions to the remote server, when possible
(Jeevan Chalke, Ashutosh Bapat) (Jeevan Chalke, Ashutosh Bapat)
</para> </para>
<para> <para>
This reduces the amount of data that must be passed This reduces the amount of data that must be passed from the remote
from the foreign data wrapper server, and offloads server, and offloads aggregate computation from the requesting server.
aggregate computation from the requesting server. The <link
linkend="postgres-fdw"><application>postgres_fdw</></> FDW is able to
perform this optimization. There are also improvements in
pushing down joins involving extensions.
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<!-- <!--
2017-03-16 [b30fb56b0] postgres_fdw: Push down FULL JOINs with restriction clau 2017-03-16 [b30fb56b0] postgres_fdw: Push down FULL JOINs with restriction clau
2017-04-24 [332bec1e6] postgres_fdw: Fix join push down with extensions
--> -->
<para> <para>
Allow push down of <literal>FULL JOIN</> queries containing In <application>postgres_fdw</>, push joins to the remote server in
subqueries in the more cases (David Rowley, Ashutosh Bapat, Etsuro Fujita)
<literal>FROM</> clause to foreign servers (Etsuro Fujita)
</para> </para>
</listitem> </listitem>
...@@ -3072,7 +3070,7 @@ ...@@ -3072,7 +3070,7 @@
</para> </para>
<para> <para>
This allows it to be less disruptive when run on production systems. This makes it less disruptive when run on production systems.
</para> </para>
</listitem> </listitem>
......
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