MaxGekk opened a new pull request #29884: URL: https://github.com/apache/spark/pull/29884
### What changes were proposed in this pull request? Convert the `ROWID` type in the Oracle JDBC dialect to Catalyst's `StringType`. The doc for Oracle 19c says explicitly that the type must be string: https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/Data-Types.html#GUID-AEF1FE4C-2DE5-4BE7-BB53-83AD8F1E34EF ### Why are the changes needed? To avoid the exception showed in https://stackoverflow.com/questions/52244492/spark-jdbc-dataframereader-fails-to-read-oracle-table-with-datatype-as-rowid ### Does this PR introduce _any_ user-facing change? Yes ### How was this patch tested? N/A ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
