I have a list column and as aggregation I’m choosing “Append Elements” with “Filter missing collection elements” unchecked.
However the generated output list never contains any missing collection elements. Either I don’t understand the option correctly (Filter missing collection elements) or it isn’t working. In fact the option doesn’t have any effect on the output. This applies to KNIME 3.7.2 and KNIME 4 and possibly earlier versions.
See attached workflow for an example.
Append Elements.knwf (8.2 KB)