(Since version 5.0.0) use field(name)
(Since version 5.0.0) use fieldSort(field)
(Since version 5.0.0) use fieldStats(fields)
(Since version 5.0.0) use fieldStats(fields)
(Since version 5.0.0) string type is deprecated in ES 5, use text or keyword types
(Since version 5.0.0) string type is deprecated in ES 5, use text or keyword types