private static int startPositionWithoutWindowsDrive(String path) {
    if (hasWindowsDrive(path)) {
      return path.charAt(0) ==  SEPARATOR_CHAR ? 3 : 2;
    } else {
      return 0;
    }
  }
Test that tables set up with auto-purge skip trash-directory when tables/partitions are dropped.
@throws Throwable
ql/src/test/org/apache/hadoop/hive/ql/metadata/TestHive.java