diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/release-9.2.sgml | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml index 0b43c3aa00d..ed8ce999fbb 100644 --- a/doc/src/sgml/release-9.2.sgml +++ b/doc/src/sgml/release-9.2.sgml @@ -72,8 +72,8 @@ <para> Users should now use hstore(text, text). Since - <productname>PostgreSQL</productname> 9.0, we have emitted a - warning message when an operator named => is created because + <productname>PostgreSQL</productname> 9.0, a warning message is + emitted when an operator named => is created because the <acronym>SQL</acronym> standard reserves that token for another use. </para> @@ -462,17 +462,6 @@ <listitem> <para> - Make the visibility map crash-safe (Robert Haas, Noah Misch) - </para> - - <para> - This helps vacuum be more efficient, and is necessary for - index-only scans. - </para> - </listitem> - - <listitem> - <para> Improve GiST box and point index performance by producing better trees with less memory allocation overhead (Alexander Korotkov, Heikki Linnakangas, Kevin Grittner) @@ -545,9 +534,19 @@ <listitem> <para> - Improve performance of <acronym>WAL</acronym> writes when multiple - transactions commit at the same time (Peter Geoghegan, Simon Riggs, - Heikki Linnakangas) + Improve performance of <acronym>WAL</acronym> writes using group + commit (Peter Geoghegan, Simon Riggs, Heikki Linnakangas) + </para> + </listitem> + + <listitem> + <para> + Make the visibility map crash-safe (Robert Haas, Noah Misch) + </para> + + <para> + This helps vacuum be more efficient, and is necessary for + index-only scans. </para> </listitem> @@ -608,14 +607,15 @@ <listitem> <para> Allow the <link linkend="pg-stat-bgwriter-view">bgwriter</link>, - <link linkend="guc-wal-writer-delay">walwriter</link>, and <link - linkend="monitoring-stats">statistics collector</link> to sleep - more efficiently during periods of inactivity (Peter Geoghegan, - Heikki Linnakangas, Tom Lane) + <link linkend="guc-wal-writer-delay">walwriter</link>, <link + linkend="monitoring-stats">statistics collector</link>, archiver, + and checkpointer to sleep more efficiently during periods of + inactivity (Peter Geoghegan, Heikki Linnakangas, Tom Lane) </para> <para> - This reduces <acronym>CPU</acronym> wake-ups. + This reduces <acronym>CPU</acronym> wake-ups, which dramatically + reduces power consumption on idle servers. </para> </listitem> @@ -2071,7 +2071,8 @@ </para> <para> - We already supported minor-version-specific <filename>.psqlrc</> + <application>psql</> already supported minor-version-specific + <filename>.psqlrc</> files. </para> </listitem> @@ -2745,7 +2746,7 @@ <para> Specifically, only lock the old cluster if link mode is used, - and do it right after we restore the schema. + and do it right after the schema is restored. </para> </listitem> |