@Test
  public void testParseInsertFromValuesAsSubQuery() throws Exception {
    parseDriver.parse("insert into table FOO select a,b from (values(1,2),(3,4)) as BAR", null);
  }
Test cases for parse WITHIN GROUP clause syntax.
function(expression) WITHIN GROUP (ORDER BY sort_expression)
parser/src/test/org/apache/hadoop/hive/ql/parse/TestValuesClause.java