diff options
| -rw-r--r-- | doc/src/sgml/release-12.sgml | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml index b55bc6d6673..00acd9fa4fe 100644 --- a/doc/src/sgml/release-12.sgml +++ b/doc/src/sgml/release-12.sgml @@ -982,8 +982,6 @@ Author: Bruce Momjian <bruce@momjian.us> <!-- Author: Tomas Vondra <tomas.vondra@postgresql.org> 2019-01-29 [36a1281f8] Separate per-batch and per-tuple memory contexts in COPY -Author: Heikki Linnakangas <heikki.linnakangas@iki.fi> -2019-01-25 [9556aa01c] Use single-byte Boyer-Moore-Horspool search even with mu Author: Andres Freund <andres@anarazel.de> 2019-01-26 [a9c35cf85] Change function call information to be variable length. --> @@ -1517,7 +1515,7 @@ Author: Michael Paquier <michael@paquier.xyz> <para> Prevent <xref linkend="sql-truncate"/> from requesting a lock on - tables for which it lacks permission (Michaël Paquier) + tables for which the user lacks permission (Michaël Paquier) </para> <para> @@ -1882,9 +1880,10 @@ Author: Peter Eisentraut <peter@eisentraut.org> </para> <para> - Rather than storing a value only at row creation time, generated - columns are also modified during updates, and can reference other - table columns. + The content of generated columns are computed from expressions + (including references to other columns in the same table) + rather than being specified by <command>INSERT</command> or + <command>UPDATE</command> commands. </para> </listitem> @@ -2061,7 +2060,7 @@ Author: Peter Eisentraut <peter@eisentraut.org> --> <para> - Allow modifications of system tables using <xref + Allow modifications of system table options using <xref linkend="sql-altertable"/> (Peter Eisentraut) </para> @@ -2595,8 +2594,8 @@ Author: Tom Lane <tgl@sss.pgh.pa.us> --> <para> - Compute behavior based on pgbench's <option>--rate</option> - value more precisely (Tom Lane) + Improve precision of pgbench's <option>--rate</option> + option (Tom Lane) </para> </listitem> @@ -2816,11 +2815,12 @@ Author: Thomas Munro <tmunro@postgresql.org> --> <para> - Allow restoration of an <command>INSERT</command>-statement dump - to skip rows which would cause conflicts (Surafel Temesgen) + Allow pg_dump to emit <command>INSERT ... ON CONFLICT DO + NOTHING</command> (Surafel Temesgen) </para> <para> + This avoids conflict failures during restore. The <application>pg_dump</application> option is <option>--on-conflict-do-nothing</option>. </para> @@ -2875,6 +2875,8 @@ Author: Andrew Dunstan <andrew@dunslane.net> <listitem> <!-- Author: Andres Freund <andres@anarazel.de> +2018-11-16 [4da597edf] Make TupleTableSlots extensible, finish split of +Author: Andres Freund <andres@anarazel.de> 2019-03-06 [8586bf7ed] tableam: introduce table AM infrastructure. Author: Andres Freund <andres@anarazel.de> 2019-03-06 [3b925e905] tableam: Add pg_dump support. @@ -2890,12 +2892,20 @@ Author: Andres Freund <andres@anarazel.de> 2019-03-31 [73c954d24] tableam: sample scan. Author: Andres Freund <andres@anarazel.de> 2019-03-31 [bfbcad478] tableam: bitmap table scan. +existin --> <para> Add <xref linkend="sql-create-access-method"/> command to create - new table types (Haribabu Kommi, Andres Freund, Álvaro Herrera, - Dimitri Dolgov) + new table types (Andres Freund, Haribabu Kommi, Álvaro Herrera, + Alexander Korotkov, Dimitri Golgov) + </para> + + <para> + This enables the development of new <link linkend="tableam">table + access methods</>, which can optimize storage for different + use-cases. The existing <literal>heap</literal> access method + remains the default. </para> </listitem> |