Hi,
is it possible to somehow make spark not use VARCHAR(255) but something
bigger i.e. CLOB for Strings?

If not, is it at least possible to catch the exception which is thrown. To
me, it seems that spark is catching and logging it - so I can no longer
intervene and handle it:

https://stackoverflow.com/questions/44927764/spark-jdbc-oracle-long-string-fields

Regards,
Georg

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