diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml index e3687aa34f..341351e46f 100644 --- a/doc/src/sgml/mvcc.sgml +++ b/doc/src/sgml/mvcc.sgml @@ -1,4 +1,4 @@ - + Concurrency Control @@ -565,7 +565,7 @@ SELECT SUM(value) FROM mytab WHERE class = 2; mode — but the semantics are all the same. The only real difference between one lock mode and another is the set of lock modes with which each conflicts (see ). - . Two transactions cannot hold locks of conflicting + Two transactions cannot hold locks of conflicting modes on the same table at the same time. (However, a transaction never conflicts with itself. For example, it might acquire ACCESS EXCLUSIVE lock and later acquire