Johannes Meyer b07e4b409f EventHistory: Drop obsolete SUM aggregates
Not used anywhere and not working for a long time already,
at least as filter columns.

refs #2860
2018-01-17 12:41:10 +01:00
..
2016-08-31 12:57:50 +02:00
2016-08-31 14:05:01 +02:00