@@ -180,6 +180,14 @@ ALTER SEQUENCE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> S
180180 the start value that was recorded by <command>CREATE SEQUENCE</>
181181 or last set by <command>ALTER SEQUENCE START WITH</>.
182182 </para>
183+
184+ <para>
185+ Like a <function>setval</function> call, a <literal>RESTART</literal>
186+ operation on a sequence is never rolled back, to avoid blocking of
187+ concurrent transactions that obtain numbers from the same sequence.
188+ (The other clauses cause ordinary catalog updates that can be rolled
189+ back.)
190+ </para>
183191 </listitem>
184192 </varlistentry>
185193
@@ -281,15 +289,6 @@ ALTER SEQUENCE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> S
281289 <refsect1>
282290 <title>Notes</title>
283291
284- <para>
285- To avoid blocking of concurrent transactions that obtain numbers from the
286- same sequence, <command>ALTER SEQUENCE</command>'s effects on the sequence
287- generation parameters are never rolled back; those changes take effect
288- immediately and are not reversible. However, the <literal>OWNED BY</>,
289- <literal>OWNER TO</>, <literal>RENAME TO</>, and <literal>SET SCHEMA</>
290- clauses cause ordinary catalog updates that can be rolled back.
291- </para>
292-
293292 <para>
294293 <command>ALTER SEQUENCE</command> will not immediately affect
295294 <function>nextval</> results in backends,