So I'm trying to get all events where val1+val2 are also in another event from the table. In the example below, I would need as output row 0 and row 1, because both val1 and val2 match.  Row 3 and 4 match on val1 but not on val2, and row 1 and 2 match on val2 but not on val1, so those events should get excluded. (Also I need time column to stay as I need to do some other operations with it)   row# time val1 val2 0 YYYY-MM-DD A X 1 YYYY-MM-DD A X 2 YYYY-MM-DD B X 3 YYYY-MM-DD C Y 4 YYYY-MM-DD C X 5 YYYY-MM-DD A Z   To solve this I've been trying:         | foreach val1 [eval test=if(val1+val2=val1+val2, "same", "not")]         or         '<<FIELD>>' = '<<FIELD>>'         But I end up getting with either "not" in all cases,  or "same" in others even tho both values are not actually the same ... View more