yaooqinn commented on a change in pull request #27187: [SPARK-30497][SQL]
migrate DESCRIBE TABLE to the new framework
URL: https://github.com/apache/spark/pull/27187#discussion_r365674995
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/v2Unresolved.scala
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@@ -19,15 +19,49 @@ package org.apache.spark.sql.catalyst.analysis
import org.apache.spark.sql.catalyst.expressions.Attribute
import org.apache.spark.sql.catalyst.plans.logical.LeafNode
-import org.apache.spark.sql.connector.catalog.SupportsNamespaces
+import org.apache.spark.sql.connector.catalog.{Identifier, SupportsNamespaces,
Table, TableCatalog}
+
+/**
+ * Holds the name of a namespace that has yet to be looked up in a catalog. It
will be resolved to
+ * [[ResolvedNamespace]] during analysis.
+ */
+case class UnresolvedNamespace(multipartIdentifier: Seq[String]) extends
LeafNode {
Review comment:
nit: `v2Unresolved` seems not to fit all
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