Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/16678#discussion_r97370977
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCOptions.scala
---
@@ -73,17 +73,7 @@ class JDBCOptions(
// ------------------------------------------------------------
// Optional parameters
// ------------------------------------------------------------
- val driverClass = {
- val userSpecifiedDriverClass = parameters.get(JDBC_DRIVER_CLASS)
- userSpecifiedDriverClass.foreach(DriverRegistry.register)
-
- // Performing this part of the logic on the driver guards against the
corner-case where the
- // driver returned for a URL is different on the driver and executors
due to classpath
- // differences.
- userSpecifiedDriverClass.getOrElse {
- DriverManager.getDriver(url).getClass.getCanonicalName
- }
- }
+ val driverClass = parameters.get(JDBC_DRIVER_CLASS)
--- End diff --
```Scala
spark.read.format("jdbc").option("url", "jdbc:sqlite:").option("dbtable",
"x").load
```
In the above code, it is not passing `JDBC_DRIVER_CLASS`. Thus, this does
not help.
Actually, if @darabos passes `JDBC_DRIVER_CLASS` as an JDBC option, the
problem is solved. Thus, I suspect it is caused by the classloader.
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