ayudovin 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_r245511162
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala
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@@ -68,7 +73,9 @@ object JDBCRDD extends Logging {
statement.close()
}
} finally {
- conn.close()
+ if (null != conn) {
Review comment:
yes, it can't be null now because we throw exception before.
I just forgot to remove it
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