org.apache.spark.sql.execution.datasources.jdbc
java.sql.DriverManager is always loaded by bootstrap classloader, so it can't load JDBC drivers accessible by Spark ClassLoader.
To solve the problem, drivers from user-supplied jars are wrapped into thin wrapper.
java.sql.DriverManager is always loaded by bootstrap classloader, so it can't load JDBC drivers accessible by Spark ClassLoader.
To solve the problem, drivers from user-supplied jars are wrapped into thin wrapper.