Revert "Disable decimal in analysis."

This reverts commit 695017410adf6d4f8426c4117798c93f823a4b4b.

Change-Id: I919d965e8e711d588e6c56dcdbd3c8e0d9ec7a05
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2093
Tested-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins
Reviewed-by: Nong Li <nong@cloudera.com>