Author: paul
Date: 2008-05-31 19:31:58 +0200 (Sat, 31 May 2008)
New Revision: 10875
Log:
r31792@frost: paul | 2008-05-31 12:29:42 -0500
Document optimizer_switch system variable
(WL#3952)
Modified:
trunk/dynamic-docs/changelog/mysqld.xml
trunk/dynamic-docs/command-optvars/mysqld.xml
trunk/refman-6.0/dba-core.xml
Property changes on: trunk
___________________________________________________________________
Name: svk:merge
- 4767c598-dc10-0410-bea0-d01b485662eb:/mysqldoc-local/mysqldoc/trunk:35828
7d8d2c4e-af1d-0410-ab9f-b038ce55645b:/mysqldoc-local/mysqldoc:31780
b5ec3a16-e900-0410-9ad2-d183a3acac99:/mysqldoc-local/mysqldoc/trunk:14218
bf112a9c-6c03-0410-a055-ad865cd57414:/mysqldoc-local/mysqldoc/trunk:31539
+ 4767c598-dc10-0410-bea0-d01b485662eb:/mysqldoc-local/mysqldoc/trunk:35828
7d8d2c4e-af1d-0410-ab9f-b038ce55645b:/mysqldoc-local/mysqldoc:31792
b5ec3a16-e900-0410-9ad2-d183a3acac99:/mysqldoc-local/mysqldoc/trunk:14218
bf112a9c-6c03-0410-a055-ad865cd57414:/mysqldoc-local/mysqldoc/trunk:31539
Modified: trunk/dynamic-docs/changelog/mysqld.xml
===================================================================
--- trunk/dynamic-docs/changelog/mysqld.xml 2008-05-31 10:48:25 UTC (rev 10874)
+++ trunk/dynamic-docs/changelog/mysqld.xml 2008-05-31 17:31:58 UTC (rev 10875)
Changed blocks: 1, Lines Added: 25, Lines Deleted: 3; 1219 bytes
@@ -91513,15 +91513,37 @@
<message>
<para>
- Added the <literal>optimizer_use_mrr</literal> system variable.
- This replaces the <literal>multi_range_count</literal> system
- variable, which has been removed.
+ Added the <literal>optimizer_use_mrr</literal> system variable
+ to enable control over whether Multi Read Range optimization is
+ used. This replaces the <literal>multi_range_count</literal>
+ system variable, which has been removed.
</para>
</message>
</logentry>
+ <logentry entrytype="feature">
+
+ <tags>
+ <manual type="optimizer_switch"/>
+ </tags>
+
+ <versions>
+ <version ver="5.2.4"/>
+ </versions>
+
+ <message>
+
+ <para>
+ Added the <literal>optimizer_switch</literal> system variable to
+ enable control over individual optimizations.
+ </para>
+
+ </message>
+
+ </logentry>
+
<logentry entrytype="bug">
<tags>
Modified: trunk/dynamic-docs/command-optvars/mysqld.xml
===================================================================
--- trunk/dynamic-docs/command-optvars/mysqld.xml 2008-05-31 10:48:25 UTC (rev 10874)
+++ trunk/dynamic-docs/command-optvars/mysqld.xml 2008-05-31 17:31:58 UTC (rev 10875)
Changed blocks: 1, Lines Added: 33, Lines Deleted: 0; 1175 bytes
@@ -14228,6 +14228,39 @@
</mysqloption>
+ <mysqloption section="server" id="optimizer_switch">
+
+ <xrefto id="option_mysqld_optimizer_switch"/>
+
+ <name>optimizer_switch</name>
+
+ <shortdescription lang="en">
+ Enable control over which optimizations to use
+ </shortdescription>
+
+ <types>
+<!--
+ ... When Bug#35676 gets fixed, add cmdline/mycnf classes ...
+-->
+ <vartype isdynamic="yes" class="system" scope="both"/>
+ </types>
+
+ <values vartype="enumeration" platform="all">
+
+ <value default="''"/>
+ <choice value="no_semijoin"/>
+ <choice value="no_materialization"/>
+
+ </values>
+
+ <versions>
+ <manual version="5.2"/>
+ <introduced version="5.2.4"/>
+ <manual version="6.0"/>
+ </versions>
+
+ </mysqloption>
+
<mysqloption section="server" id="optimizer_use_mrr">
<xrefto id="option_mysqld_optimizer_use_mrr"/>
Modified: trunk/refman-6.0/dba-core.xml
===================================================================
Changed blocks: 0, Lines Added: 0, Lines Deleted: 0; 106 bytes
| Thread |
|---|
| • svn commit - mysqldoc@docsrva: r10875 - in trunk: . dynamic-docs/changelog dynamic-docs/command-optvars refman-6.0 | paul | 31 May |
