[Rel v0.2] Migrate more rel code (#48)

Author: gkastrinis

rai-sdk/src/test/java/com/relationalai/DatabaseTest.java

@@ -160,7 +160,7 @@ void testDatabase() throws HttpError, InterruptedException, IOException {
         assertEquals("CREATED", createRsp.state);
 
         // Make sure the data was cloned
-        var rsp = client.executeV1(databaseCloneName, engineName, "test_data", true);
+        var rsp = client.executeV1(databaseCloneName, engineName, "def output {test_data}", true);
 
         Relation rel;