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-rw-r--r--doc/src/sgml/ref/alter_system.sgml13
1 files changed, 9 insertions, 4 deletions
diff --git a/doc/src/sgml/ref/alter_system.sgml b/doc/src/sgml/ref/alter_system.sgml
index 23c30efc8f8..a6e32106e80 100644
--- a/doc/src/sgml/ref/alter_system.sgml
+++ b/doc/src/sgml/ref/alter_system.sgml
@@ -22,6 +22,9 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
ALTER SYSTEM SET <replaceable class="PARAMETER">configuration_parameter</replaceable> { TO | = } { <replaceable class="PARAMETER">value</replaceable> | '<replaceable class="PARAMETER">value</replaceable>' | DEFAULT }
+
+ALTER SYSTEM RESET <replaceable class="PARAMETER">configuration_parameter</replaceable>
+ALTER SYSTEM RESET ALL
</synopsis>
</refsynopsisdiv>
@@ -30,10 +33,12 @@ ALTER SYSTEM SET <replaceable class="PARAMETER">configuration_parameter</replace
<para>
<command>ALTER SYSTEM</command> writes the configuration parameter
- values to the <filename>postgresql.auto.conf</filename> file. With
- <literal>DEFAULT</literal>, it removes a configuration entry from
- <filename>postgresql.auto.conf</filename> file. The values will be
- effective after reload of server configuration (SIGHUP) or in next
+ values to the <filename>postgresql.auto.conf</filename> file.
+ Setting the parameter to <literal>DEFAULT</literal>, or using the
+ <command>RESET</command> variant, removes the configuration entry from
+ <filename>postgresql.auto.conf</filename> file. Use <literal>RESET
+ ALL</literal> to clear all configuration entries. The values will
+ be effective after reload of server configuration (SIGHUP) or in next
server start based on the type of configuration parameter modified.
</para>