From Cloud Bigtable schema design documentation: Grouping data into column families allows you to retrieve data from a single family, or multiple families, rather than retrieving all of the data in each row. Group data as closely as you can to get just the information that you need, but no more, in your most frequent API calls.
In my use case, I can group all the data into one single column family (currently the access pattern is retrieve all fields), or group them to say 3 logical column families and specify these column families all the time while querying. Is there any performance difference between these two designs? Which design is recommended?
