HHH-4765 Enhance Dialect support for JPA-2 locking.

git-svn-id: https://svn.jboss.org/repos/hibernate/core/trunk@18673 1b8cb986-b30d-0410-93ca-fae66ebed9b2

core/src/main/java/org/hibernate/dialect/PostgreSQLDialect.java

@@ -358,4 +358,17 @@ public class PostgreSQLDialect extends Dialect {
 		// seems to have spotty LOB suppport
 		return false;
 	}
+
+	public String getForUpdateString() {
+		return " for update";
+	}
+
+	public String getWriteLockString(int timeout) {
+		return " for update";
+	}
+
+	public String getReadLockString(int timeout) {
+		return " for share";
+	}
+
 }