Necessary, not optional, because dangling link prevents relnotes from
building.
<listitem>
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
-2018-11-29 [88bdbd3f7] Add log_statement_sample_rate parameter
-Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
2019-04-03 [799e22034] Log all statements from a sample of transactions
-->
<para>
- Allow logging of only a percentage of statements and transactions
- meeting <xref linkend="guc-log-min-duration-statement"/> criteria
+ Allow logging of statements from only a percentage of transactions
(Adrien Nayrat)
</para>
<para>
- The parameters <xref linkend="guc-log-statement-sample-rate"/>
- and <xref linkend="guc-log-transaction-sample-rate"/> control this.
+ The parameter <xref linkend="guc-log-transaction-sample-rate"/>
+ controls this.
</para>
</listitem>