HyukjinKwon commented on code in PR #36904:
URL: https://github.com/apache/spark/pull/36904#discussion_r904452971


##########
sql/core/src/main/scala/org/apache/spark/sql/catalog/interface.scala:
##########
@@ -26,6 +26,24 @@ import 
org.apache.spark.sql.catalyst.DefinedByConstructorParams
 // Note: all classes here are expected to be wrapped in Datasets and so must 
extend
 // DefinedByConstructorParams for the catalog to be able to create encoders 
for them.
 
+/**
+ * A catalog in Spark, as returned by the `listCatalogs` method defined in 
[[Catalog]].
+ *
+ * @param name name of the catalog
+ * @since 3.4.0
+ */
+class CatalogMetadata(

Review Comment:
   Would have to be a case class.



##########
sql/core/src/main/scala/org/apache/spark/sql/catalog/interface.scala:
##########
@@ -26,6 +26,24 @@ import 
org.apache.spark.sql.catalyst.DefinedByConstructorParams
 // Note: all classes here are expected to be wrapped in Datasets and so must 
extend
 // DefinedByConstructorParams for the catalog to be able to create encoders 
for them.
 
+/**
+ * A catalog in Spark, as returned by the `listCatalogs` method defined in 
[[Catalog]].
+ *
+ * @param name name of the catalog

Review Comment:
   `description` is missing



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