Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/17001#discussion_r103865312 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala --- @@ -30,7 +33,7 @@ import org.apache.spark.sql.catalyst.expressions.Expression * * Implementations should throw [[NoSuchDatabaseException]] when databases don't exist. */ -abstract class ExternalCatalog { +abstract class ExternalCatalog(conf: SparkConf, hadoopConf: Configuration) { --- End diff -- but it will be only used in `getDatabase`, and we can save a metastore call to get the default database.
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