ie: The first column of the hierarchy for my user column is called QUERY_NODE and contains values like this;
[USER].[BOB]
[USER].[FERNANDO]
[USER].[JOE]
[USER].[LARS]
[USER].[MAKOTO]
......
etc
It is a distinct list of users derived from my MKPF table. Refreshing this preview does not load data into memory in the source table column found under table MKPF definition. It SEEMS this list is persisted and/or it is reading from MKPF on disc and not MKPF from memory so I'm trying to clarify how this hierarchy is working.