W.r.t. standard dictionaries, it's something we're interested in, but the fundamental reality of dictionaries is that their effectiveness is strongly tied to th

W.r.t. standard dictionaries, it's something we're interested in, but the fundamental reality of dictionaries is that their effectiveness is strongly tied to their specificity. Put another way, a universal dictionary is a self-contradiction. And yes, totally, I know at least RocksDB supports exactly that behavior [0]. [0] https://github.com/facebook/rocksdb/blob/12f11373554af219c519ff60a612e355508518f7/table/block_based/block_based_table_builder.cc#L1654 https://github.com/facebook/rocksdb/blob/12f11373554af219c51...