Hi,
in reference to a bug report of mine I recognized the String Manipulation "Multi Column) fails with a NullPointerException for missing column values. It seems, though, it’s only for missing values BUT not, contrary to the initial bug report, caused by unspecific column types.
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:
to instate a fallback to skip columns of unknown type OR
Just process columns of an unspecific type
Enable selection by type like in the column filter node and others
[Bildschirmfoto 2020-…
From my perspective the String Manipulation (Multi Column) Node is heavily bugged and need to be fixed urgently.
Here is the sample workflow showcasing the bug:
https://hub.knime.com/mw/spaces/Public/latest/Bugs/String%20manipulation%20Multi%20Column%20NullPointerException
best
2 Likes
Hi Mike,
thank you for the report. I will have a look and create a bug ticket if needed.
Best,
1 Like
system
September 18, 2021, 5:21am
3
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