// equality predicate on preceding key columns
assertRowCount(1, s.executeQuery("select distinct c2 from t1 where c1 = 1 and c3 = '1'"));
rtsp = SQLUtilities.getRuntimeStatisticsParser(s);
assertFalse(rtsp.usedDistinctScan());
assertTrue(rtsp.eliminatedDuplicates());
// equality predicate on all key columns, non unique
assertRowCount(1, s.executeQuery("select distinct c3 from t1 where c1 = 1 and c2 = '1'"));
rtsp = SQLUtilities.getRuntimeStatisticsParser(s);
assertFalse(rtsp.usedDistinctScan());