Check for _ID and _CAS as well as __id and __cas being projected from query and analytics. (#1390)

Closes #1389.

src/test/java/org/springframework/data/couchbase/repository/query/StringN1qlQueryCreatorTests.java

@@ -149,6 +149,39 @@ class StringN1qlQueryCreatorTests extends ClusterAwareIntegrationTests {
 		}
 	}
 
+	@Test
+	@IgnoreWhen(missesCapabilities = Capabilities.QUERY, clusterTypes = ClusterType.MOCKED)
+	void findUsingStringNq1l_3x_projection_id_cas() throws Exception {
+		Airline airline = new Airline(UUID.randomUUID().toString(), "Continental", "USA");
+		try {
+			Airline modified = couchbaseTemplate.upsertById(Airline.class).one(airline);
+
+			String input = "getByName_3x";
+			Method method = AirlineRepository.class.getMethod(input, String.class);
+
+			CouchbaseQueryMethod queryMethod = new CouchbaseQueryMethod(method,
+					new DefaultRepositoryMetadata(AirlineRepository.class), new SpelAwareProxyProjectionFactory(),
+					converter.getMappingContext());
+
+			StringN1qlQueryCreator creator = new StringN1qlQueryCreator(getAccessor(getParameters(method), "Continental"),
+					queryMethod, converter, config().bucketname(), new SpelExpressionParser(),
+					QueryMethodEvaluationContextProvider.DEFAULT, namedQueries);
+
+			Query query = creator.createQuery();
+
+			ExecutableFindByQuery q = (ExecutableFindByQuery) couchbaseTemplate.findByQuery(Airline.class)
+					.withConsistency(QueryScanConsistency.REQUEST_PLUS).matching(query);
+
+			Optional<Airline> al = q.one();
+			assertEquals(airline.toString(), al.get().toString());
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw e;
+		} finally {
+			couchbaseTemplate.removeById().one(airline.getId());
+		}
+	}
+
 	private ParameterAccessor getAccessor(Parameters<?, ?> params, Object... values) {
 		return new ParametersParameterAccessor(params, values);
 	}