srowen commented on a change in pull request #23464: [SPARK-26383][Core] - NPE
when use DataFrameReader.jdbc with wrong URL
URL: https://github.com/apache/spark/pull/23464#discussion_r245514910
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala
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@@ -54,6 +54,7 @@ object JDBCRDD extends Logging {
val table = options.tableOrQuery
val dialect = JdbcDialects.get(url)
val conn: Connection = JdbcUtils.createConnectionFactory(options)()
+
Review comment:
Go ahead and revert this
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