alamb commented on issue #7959:
URL:
https://github.com/apache/arrow-datafusion/issues/7959#issuecomment-1783765635
Thank you @suremarc for the report and the reproducer. It happens for me as
well
I did some initial investigation and it seems like `left('APPL', 1)` gets
evaluated into a single element array (rather than a ColumnarValue) which is
what is causing the error
The function dispatch code is a bit complicated and it seems like it could
be simplified. Maybe someone else has some thoughts on how to do so
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