Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/3409#discussion_r106920718
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/exceptions.scala
---
@@ -165,3 +165,31 @@ case class AmbiguousTableSourceConverterException(
def this(tableType: String) = this(tableType, null)
}
+
+/**
+ * Exception for operation on a nonexistent external catalog
+ *
+ * @param catalogName external catalog name
+ * @param cause
+ */
+case class ExternalCatalogNotExistException(
--- End diff --
Maybe we should introduce some superclasses, because there are many
exceptions that users might want to catch at once.
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