Hello @KristiLogos,

The error you are encountering, java.sql.SQLException: [Simba][JDBC](11380) Null pointer exception, is a known issue with the Simba JDBC driver for BigQuery. This error typically occurs when there is a problem with the data being fetched, such as null values or unexpected data types that the driver cannot handle. Could you please advise which JDBC version are you using?

You might need to adjust settings such as spark.sql.shuffle.partitions and spark.executor.memory