Hi @Nurettin Ersoz​ , you have to specify the column you are using for Z-Ordering in the SQL query.

It seems like you want to specify multiple columns for ZORDER BY as a comma-separated list. But the effectiveness of the locality drops with each additional column. So, the performance may not be better.

https://www.youtube.com/watch?v=A1aR1A8OwOU

Above video might help you. Have a look at it.