Loop End (Column Append)

KNIME Analytics Platform
1

Hi

I am trying to use a loop to merge columns using the column merger node, however, when I try to use the column filter node to remove the original input data, only the first column is returned at the loop end (see snippet of w/flow below):

image

The column filter is set to exclude all fields.

Where am I going wrong?

Thanks
Chris

2

Hi all

I have managed to solve this. It turns out I unintentionally move the “Any unknown columns” bit over to the excludes section. Having moved it back to the includes section the loop is working as expected.

Regards
Chris

2 Likes
3

Hi Chris,
Thanks for updating!
Alexander

4

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