row filter inconsistent results ?

[forum]

Internal ticket ID: AP-23433
Summary: Row Filter to support “is not equal” variant that retains missing cells
Fix version(s): 5.5.0
Other related topic(s):

Row Filter: Non-intuitive handling of missing values

Hi, I ran into a strange, non-intuitive issue and I would like to understand the background if possible. Assumig we have a (string) column with “A” / “B” / missing value and the Row Filter logic is set to: Equals “A” + Non-matching → Result: “B” + missing value Does not equal “A” + Matching → Results: “B” only Is it the intended behaviour? I did the same with Row Filter (Labs) and it had “B” + missing value in both ways. Thanks, (KNIME 5.3.2)