Thanks Honza.
You made my day (my night rather, it is midnight here in Brussels). I quickly tested the code and it gives the same results as the manually chained expression. I will test with various metrics tomorrow, I will then mark the question as “completed”. Thanks a lot and have a nice day. P.S:This opens the possibilty to perform any “pivot” table in ES . The challenge will be to parse the resulting json resuts (see http://stackoverflow.com/questions/29280480/), but I hope to find a way. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/a8e920e0-e00d-45ee-9466-2ff947752848%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.