doc: update PG 12 release notes, v2
Adjustments requested by reviewers. Reported-by: Amit Kapila, Thomas Munro, Andrew Gierth, Amit Langote, Oleg Bartunov, Michael Paquier, Alvaro Herrera, Tatsuo Ishii Discussion: https://postgr.es/m/20190506233029.ozwged67i7s4qd6c@momjian.us
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Bruce Momjian
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@ -6,7 +6,7 @@
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<formalpara>
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<title>Release date:</title>
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<para>2019-??-?? AS OF 2019-05-04</para>
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<para>2019-??-?? AS OF 2019-05-09</para>
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</formalpara>
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<sect2>
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@ -60,9 +60,12 @@ Remove the special behavior of OID columns (Andres Freund, John Naylor)
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</para>
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<para>
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Previously, a normally-invisible OID column could be specified during table creation using WITH OIDS; that ability has been removed. Columns can still be explicitly
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specified as type OID. pg_dump and pg_upgrade operations on databases using WITH OIDS will need adjustment. Many system tables now have an 'oid' column that will be
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expanded with SELECT * by default.
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Previously, a normally-invisible OID column could be specified during table
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creation using WITH OIDS; that ability has been removed. Columns can
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still be explicitly specified as type OID. Operations on tables that
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have columns named 'oid' (created using WITH OIDS) will need adjustment.
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Many system tables now have an 'oid' column that will be expanded with
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SELECT * by default.
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</para>
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</listitem>
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@ -99,7 +102,8 @@ Move recovery.conf settings into postgresql.conf (Fujii Masao, Simon Riggs, Abhi
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</para>
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<para>
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recovery.conf is no longer used, and recovery.signal and standby.signal are used to switch into non-primary mode.
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recovery.conf is no longer used, and the server will not start if the
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file exists. recovery.signal and standby.signal are now used to switch into non-primary mode.
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trigger_file has been renamed to promote_trigger_file. The standby_mode setting has been removed.
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</para>
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</listitem>
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@ -172,6 +176,23 @@ Improve behavior and error reporting for the line data type (Emre Hasegeli)
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Andrew Gierth <rhodiumtoad@postgresql.org>
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2019-02-13 [02ddd4993] Change floating-point output format for improved perform
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-->
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<para>
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Avoid performing unnecessary rounding of REAL and DOUBLE PRECISION values (Andrew Gierth)
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</para>
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<para>
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This dramatically speeds up processing of floating-point values, though
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trailing digits are display slightly differently. Users who wish to have output that is rounded can set
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extra_float_digits=0.
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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@ -355,10 +376,6 @@ Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
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<para>
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Allow foreign keys to reference partitioned tables (Alvaro Herrera)
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</para>
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<para>
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LIMITATIONS?
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</para>
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</listitem>
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<listitem>
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@ -937,36 +954,6 @@ Improve speed in converting strings to int2/int4 integers (Andres Freund)
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Andrew Gierth <rhodiumtoad@postgresql.org>
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2019-02-13 [02ddd4993] Change floating-point output format for improved perform
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-->
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<para>
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Avoid performing unnecessary rounding of REAL and DOUBLE PRECISION values (Andrew Gierth)
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</para>
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<para>
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This dramatically speeds up processing of floating-point values. Users who wish to have output that is rounded can set extra_float_digits=0.
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Amit Kapila <akapila@postgresql.org>
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2019-02-04 [b0eaa4c51] Avoid creation of the free space map for small heap rela
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-->
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<para>
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Avoid creation of the free space map files for small table (John Naylor, Amit Kapila)
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</para>
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<para>
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Such files are not useful.
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Thomas Munro <tmunro@postgresql.org>
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@ -976,7 +963,7 @@ Author: Thomas Munro <tmunro@postgresql.org>
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-->
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<para>
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Use pread() and pwrite() for random I/O (Thomas Munro)
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Use pread() and pwrite() for random I/O (Oskari Saarenmaa, Thomas Munro)
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</para>
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<para>
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@ -1717,10 +1704,12 @@ MENTION ITS AFFECT ON ORDERING?
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<!--
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Author: Fujii Masao <fujii@postgresql.org>
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2019-04-08 [119dcfad9] Add vacuum_truncate reloption.
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Author: Fujii Masao <fujii@postgresql.org>
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2019-05-08 [b84dbc8eb] Add TRUNCATE parameter to VACUUM.
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-->
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<para>
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Add CREATE TABLE option to prevent VACUUM from truncating trailing empty pages (Tsunakawa Takayuki)
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Add VACUUM and CREATE TABLE options to prevent VACUUM from truncating trailing empty pages (Tsunakawa Takayuki)
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</para>
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<para>
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@ -1910,7 +1899,7 @@ Add support for the SQL/JSON path language (Nikita Glukhov, Teodor Sigaev, Alexa
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</para>
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<para>
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This allows JSON values to be selected using an SQL-standard language.
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This allows execution of complex queries on JSON values using an SQL-standard language.
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</para>
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</listitem>
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@ -2527,7 +2516,7 @@ Author: Andres Freund <andres@anarazel.de>
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-->
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<para>
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Add CREATE ACCESS METHOD command to create new table types (Haribabu Kommi, Andres Freund, Alvaro Herrera, Dimitri Golgov)
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Add CREATE ACCESS METHOD command to create new table types (Haribabu Kommi, Andres Freund, Alvaro Herrera, Dimitri Dolgov)
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</para>
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</listitem>
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@ -2538,7 +2527,7 @@ Author: Andres Freund <andres@anarazel.de>
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-->
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<para>
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Specify a range of oids (9000-9999) to be used for external extensions (Andres Freund)
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Reserve a range of oids (9000-9999) to be used for external extensions (Andres Freund)
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</para>
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</listitem>
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@ -2685,6 +2674,8 @@ Author: Etsuro Fujita <efujita@postgresql.org>
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2018-12-04 [f8f6e4467] postgres_fdw: Improve cost and size estimation for aggre
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Author: Etsuro Fujita <efujita@postgresql.org>
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2019-01-24 [fd1afdbaf] postgres_fdw: Account for tlist eval costs in estimate_p
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Author: Etsuro Fujita <efujita@postgresql.org>
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2019-05-09 [edbcbe277] postgres_fdw: Fix cost estimation for aggregate pushdown
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-->
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<para>
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@ -2749,7 +2740,7 @@ Author: Michael Paquier <michael@paquier.xyz>
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-->
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<para>
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Update unaccent rules with new new punctuation and symbols (Hugh Ranalli, Michael Paquier)
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Update unaccent rules with new punctuation and symbols (Hugh Ranalli, Michael Paquier)
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</para>
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</listitem>
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