diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml index 4213216cc47..acce32dd9a1 100644 --- a/doc/src/sgml/mvcc.sgml +++ b/doc/src/sgml/mvcc.sgml @@ -1,4 +1,4 @@ - + Concurrency Control @@ -1080,7 +1080,7 @@ SELECT pg_advisory_lock(id) FROM foo WHERE id = 12345; -- ok SELECT pg_advisory_lock(id) FROM foo WHERE id > 12345 LIMIT 100; -- danger! SELECT pg_advisory_lock(q.id) FROM ( - SELECT id FROM foo WHERE id > 12345 LIMIT 100; + SELECT id FROM foo WHERE id > 12345 LIMIT 100 ) q; -- ok In the above queries, the second form is dangerous because the