Add ALLOW FILTERING in the cases Cassandra requires it based on query. More result info formatting.

src/main/java/net/helenus/core/operation/Operation.java

@@ -122,9 +122,10 @@ public abstract class Operation<E> {
 					ConsistencyLevel cl = ei.getAchievedConsistencyLevel();
 					int se = ei.getSpeculativeExecutions();
 					String warn = ei.getWarnings().stream().collect(Collectors.joining(", "));
-					String ri = String.format("%s %s %s %s %sd%s%s spec-retries: %d", "C* v" + qh.getCassandraVersion(),
+					String ri = String.format("%s %s %s %s %s %s%sspec-retries: %d",
-							qh.getAddress().toString(), qh.getDatacenter(), qh.getRack(),
+							"server v" + qh.getCassandraVersion(), qh.getAddress().toString(),
-							(oh != null && !oh.equals("")) ? "[" + oh + "] " : "",
+							(oh != null && !oh.equals("")) ? " [tried: " + oh + "]" : "", qh.getDatacenter(),
+							qh.getRack(),
 							(cl != null)
 									? (" consistency: " + cl.name() + (cl.isDCLocal() ? " DC " : "")
 											+ (cl.isSerial() ? " SC " : ""))

src/main/java/net/helenus/core/operation/SelectOperation.java

@@ -289,8 +289,23 @@ public final class SelectOperation<E> extends AbstractFilterStreamOperation<E, S
 
 			for (Filter<?> filter : filters.values()) {
 				where.and(filter.getClause(sessionOps.getValuePreparer()));
-				if (filter.getNode().getProperty().caseSensitiveIndex()) {
+				HelenusProperty prop = filter.getNode().getProperty();
-					allowFiltering = true;
+				boolean isFirstIndex = true;
+				switch (prop.getColumnType()) {
+					case PARTITION_KEY :
+					case CLUSTERING_COLUMN :
+						break;
+					default :
+						// When using non-Cassandra-standard 2i types or when using more than one
+						// indexed column or non-indexed columns the query must include ALLOW FILTERING.
+						if (prop.caseSensitiveIndex()) {
+							allowFiltering = true;
+						} else if (prop.getIndexName() != null) {
+							allowFiltering |= !isFirstIndex;
+							isFirstIndex = false;
+						} else {
+							allowFiltering = true;
+						}
 				}
 			}
 		}

src/test/java/net/helenus/test/integration/core/unitofwork/UnitOfWorkTest.java

@@ -19,6 +19,7 @@ import static net.helenus.core.Query.eq;
 
 import java.util.UUID;
 
+import com.datastax.driver.core.ConsistencyLevel;
 import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -54,7 +55,8 @@ public class UnitOfWorkTest extends AbstractEmbeddedCassandraTest {
 
 	@BeforeClass
 	public static void beforeTest() {
-		session = Helenus.init(getSession()).showCql().add(Widget.class).autoCreateDrop().get();
+		session = Helenus.init(getSession()).showCql().add(Widget.class).autoCreateDrop().consistencyLevel(
+                ConsistencyLevel.ONE).idempotentQueryExecution(true).get();
 		widget = session.dsl(Widget.class);
 	}
 
@@ -71,7 +73,8 @@ public class UnitOfWorkTest extends AbstractEmbeddedCassandraTest {
 			uow.setPurpose("testSelectAfterSelect");
 
 			// This should read from the database and return a Widget.
-			w2 = session.<Widget>select(widget).where(widget::id, eq(key)).single().sync(uow).orElse(null);
+			w2 = session.<Widget>select(widget).where(widget::id, eq(key)).single()
+                    .sync(uow).orElse(null);
 
 			// This should read from the cache and get the same instance of a Widget.
 			w3 = session.<Widget>select(widget).where(widget::id, eq(key)).single().sync(uow).orElse(null);