Add list of tables missing stats to explain header and mem-limit exceeded error.

Change-Id: Ibe8f329d5513ae84a8134b9ddb3645fa174d8a66
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1501
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: jenkins