Merge branch 'PGPROEE10_MULTIMASTER' into PGPROEE10

Author: vbwagner

doc/src/sgml/config.sgml

@@ -7901,6 +7901,22 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
       </listitem>
      </varlistentry>
 
+     <varlistentry id="guc-compress-temp-relations" xreflabel="compress_temp_relations">
+      <term><varname>compress_temp_relations</varname> (<type>bool</type>)
+      <indexterm>
+       <primary><varname>compress_temp_relations</> configuration parameter</primary>
+      </indexterm>
+      </term>
+      <listitem>
+       <para>
+        When set to <literal>true</literal>, compresses temporary tables.
+        For large temporary tables, this setting can save disk space and
+        speed up execution as less data needs to be read.
+        Default: <literal>false</literal>
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry id="guc-cfs-gc-delay" xreflabel="cfs-gc-delay">
       <term><varname>cfs_gc_delay</varname> (<type>integer</type>)
       <indexterm>