doc: change pg_upgrade wal_level to be not minimal

bmomjian · bmomjian · commit 2a06cb86dbac · 2020-06-30T11:55:53.000-04:00
Previously it was specified to be only replica. Discussion: https://postgr.es/m/20200618180058.GK7349@momjian.us Backpatch-through: 9.5
diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
@@ -360,8 +360,8 @@ NET STOP postgresql-&majorversion;
      <quote>Latest checkpoint location</quote> values match in all clusters.
      (There will be a mismatch if old standby servers were shut down
      before the old primary or if the old standby servers are still running.)
-     Also, change <varname>wal_level</varname> to
-     <literal>replica</literal> in the <filename>postgresql.conf</filename> file on the
+     Also, make sure <varname>wal_level</varname> is not set to 
+     <literal>minimal</literal> in the <filename>postgresql.conf</filename> file on the
      new primary cluster.
     </para>
    </step>
