String Manipulation (Multi Column) with many columns

Hello KNIMErs,

I’m a little bit confused. Is it a bug or a feature?

I have to replace letters in a huge table wit round about 6000+ columns.

I want to use the String Manipulation (Multi Column) Node to do this job with regexReplacer-function

regexReplace($$CURRENTCOLUMN$$, “[a-zA-Z]”, “”)

But this expression throws an error

If I relace $$CURRENTCOLUMN$$ with only one column name it works.

Has anybody an idea what the problem is?

Regards,

Brotfahrer