Google Cloud Bigtable will let you store empty strings as values. I'm not quite as sure about whether you can successfully set a 0-byte value and distinguish it

Google Cloud Bigtable will let you store empty strings as values. I'm not quite as sure about whether you can successfully set a 0-byte value and distinguish it from an empty string ['\0'] value; the answer may depend on the client library/language/API that you use to interact with the service. [Source/Disclaimer: I work on Google Cloud Bigtable.]