String Manipulation (Multi Column) fails with NullPointerException

[mwiegand]

Hi there,

in Column Auto Type Cast Fallback for missing columns I raised a bug / feature for the Column Auto Type Cast. I recognized that the String Manipulation (Multi Column) throws a NullPointerException error if it encounters a column w/o a specific type.

Henceforth, I’d like to suggest three things:

1. to instate a fallback to skip columns of unknown type OR
2. Just process columns of an unspecific type
3. Enable selection by type like in the column filter node and others

Best
Mike

[ipazin]

Hi @mw,

tnx for reporting this. Ticket created to address it. (Internal reference: AP-15075)

Br,
Ivan

[mwiegand]

You are welcome @ipazin. I noticed itÄs the same for the ungroup. Kind of an edge case. Shall I create another ticket?

Btw, this might be caused by the Transpose as this can no determine the column type if it contains no values. Maybe it’s a more wholistic approach to instate a fallback to string type or even be able to determine the fallback manually, though?

[ipazin]

Hi @mw,

Seems so. I’ll add it to existing ticket and then let’s see

Br,
Ivan