@Test
public void test_交换_右链接() {

    TableNode table1 = new TableNode("TABLE1");
    TableNode table2 = new TableNode("TABLE2");
    JoinNode join = table1.join(table2).setRightOuterJoin();
    join.build();
    JoinPreProcessor.optimize(join);
    Assert.assertEquals(true, join.isLeftOuterJoin());
    Assert.assertEquals(table2, join.getLeftNode());
}