Currently, the translateQuery in timeseries_update_delete_util.cpp replaces any occurrences of the metaField with "meta." However, it really should only replace any occurrences of top-level fields with the literal "meta". For example, if the metaField is "tag," and we queried on the field { "a":{ "tag": 1 }}, our current translation logic would substitute "tag" with "meta", but this is incorrect and we should leave the query as { "a":

 }.