TablespaceSpec tablespace = TablespaceSpec.of(theSchema2, "id", new Path(INPUT), new TupleInputFormat(), 1);
TablespaceGenerator viewGenerator = new TablespaceGenerator(tablespace, new Path(OUTPUT), this.getClass());
viewGenerator.generateView(conf, SamplingType.FULL_SCAN, new TupleSampler.RandomSamplingOptions());
SQLite4JavaClient manager = new SQLite4JavaClient(OUTPUT + "/store/0.db", null);
String results = manager.query("SELECT * FROM schema2;", 100);
assertTrue(results.contains("null"));
assertNull(searchRow(results, "id", "id1").get("intValue"));
assertEquals(-1.0, searchRow(results, "id", "id1").get("doubleValue"));
assertNull(searchRow(results, "id", "id1").get("strValue"));