HyukjinKwon commented on a change in pull request #29964:
URL: https://github.com/apache/spark/pull/29964#discussion_r500959911



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File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/connection/ConnectionProvider.scala
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@@ -22,12 +22,15 @@ import java.util.ServiceLoader
 
 import scala.collection.mutable
 
+import org.apache.spark.{SparkConf, SparkEnv}
 import org.apache.spark.internal.Logging
 import org.apache.spark.security.SecurityConfigurationLock
 import org.apache.spark.sql.jdbc.JdbcConnectionProvider
 import org.apache.spark.util.Utils
 
 private[jdbc] object ConnectionProvider extends Logging {
+  private val providerEnabledConfig = 
"spark.security.jdbc.connection.provider.%s.enabled"

Review comment:
       This kind of pattern `provider.{providerName}.enabled` is used often in 
other non-SQL codebase e.g.) `"spark.security.credentials.%s.enabled"` at 
`HadoopDelegationTokenManager`. I think he's more used to this kind of pattern.
   
   Since we're in SQL, maybe it's better to stick to the suggestion above if 
possible.




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