MX-1233, MX-1240, implement fast updates for lookup by id and lookup by secondary key, all in non-sharded
clusters. Have yet to address sharded clusters and the implementation of fastUpdatesOk
MX-1233, MX-1240, Get fast updates working with sharding. Check to see if the primarykey contains the shard key. If not,
then we cannot run fast updates.
MX-1233, MX-1240, add server status variables so we can detect cases in the field where fast updates may help users