The BatchReadPolicy type exposes the following members.
Optional expression filter. If filterExp exists and evaluates to false, the specific batch key request is not performed and resultCode is set to FILTERED_OUT.
If exists, this filter overrides the batch parent filter for the specific key in batch commands that allow a different policy per key. Otherwise, this filter is ignored.
Read policy for AP (availability) namespaces.
Read policy for SC (strong consistency) namespaces.