<listitem>

<para>

Increase the maximum values for <xref linkend="guc-deadlock-timeout">,

<xref linkend="guc-max-standby-archive-delay">,

<xref linkend="guc-max-standby-streaming-delay">,

<xref linkend="guc-log-min-duration-statement">, and

<xref linkend="guc-log-autovacuum-min-duration">.

Increase the maximum values for <varname>deadlock_timeout</>,

<varname>max_standby_archive_delay</>,

<varname>max_standby_streaming_delay</>,

<varname>log_min_duration_statement</>, and

<varname>log_autovacuum_min_duration</>.

</para>

<para>

<listitem>

<para>

Add <link linkend="SQL-ALTERTABLE"><command>ALTER TABLE ...

ADD UNIQUE/PRIMARY KEY USING INDEX</command></link>

Add <command>ALTER TABLE ...

ADD UNIQUE/PRIMARY KEY USING INDEX</command>

(Gurjeet Singh)

</para>

<listitem>

<para>

Allow <link linkend="SQL-ALTERTABLE"><command>ALTER TABLE</></link>

Allow <command>ALTER TABLE</>

to add foreign keys without validation (Simon Riggs)

</para>

</para>

<para>

<xref linkend="sql-altertable"> now takes a stronger lock on the

<command>ALTER TABLE INHERIT</> now takes a stronger lock on the

parent table, so that both children do not try to update it

simultaneously.

</para>