DB2 SQL Error: SQLCODE=-964, SQLSTATE=57011, SQLERRMC=null, DRIVER=4.16.53
Apparently it's very sensitive to data input formats and essentially it wants you to do the data babysitting work first by properly preparing and structuring the data before it'll do anything.
These are cool demos on "friendly" pre-baked spreadsheets but way early for any practical production deployments, until IBM will start supporting raw datasets.