Configuration error or bug in the Column Merger

Hi there, 

I have troubles using the Column Merger. The documentation says the following:

"The output of the node will be a new column (or a replacement of the selected input columns), whereby the output value for each row will be

  • the value in the primary column if it is not missing,
  • the value in the secondary column otherwise."

This is what I want to archive - if a value is missing, the value of the other column shall be used. But independant from which column I use as the primary column I just get the values from it. No other values are merged into the newly created column.

Am I missing some configuration or is there a bug in the column merger? 

Many thanks and best regards, Andy 

I don't see any missing values in your columns.

Argh, you are right! 

Thanks a lot for the hint!