May I have an additional question, as this Group By element is not very clear for me.
I have another table, with the elements
A | B | C
------------
true | false | false
false | true | false
true | true | true
If I add another rowid to it, and try to count the sum of trues in the row, it somehow does not work. For some reason I cannot count only trues in multiple rows, following your suggestion.
I would like to have the results:
A | 2
B | 2
C | 1
Sorry for the stupid question, trying to understand the logic of KNIME.