Storing time-series in a columnar format (blobs o time-values) and entity data in row format sounds good to me. If you look at data historians (PI et al), that

Storing time-series in a columnar format (blobs o time-values) and entity data in row format sounds good to me. If you look at data historians (PI et al), that's how they lay out the data: metrics storage is separate from the asset store, or Asset Framework as it's called.