Yes. We had a query language that let us string together AND/OR/NOT filters as a tree and then the backend could decompose and query off of it. We'd have a data

Yes. We had a query language that let us string together AND/OR/NOT filters as a tree and then the backend could decompose and query off of it. We'd have a data service per document type being queried. In our situation, customer feedback aggregates, vertical aggregates and customer feedback datums were different. So a page containing components using both would necessarily have two data services working independently.