szehon-ho commented on code in PR #51107:
URL: https://github.com/apache/spark/pull/51107#discussion_r2133434982
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/interface.scala:
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@@ -629,9 +629,15 @@ case class CatalogTable(
if (lastAccessTime <= 0) JString("UNKNOWN")
else JLong(lastAccessTime)
- val viewQueryOutputColumns: JValue =
- if (viewQueryColumnNames.nonEmpty)
JArray(viewQueryColumnNames.map(JString).toList)
- else JNull
+ val viewQueryOutputColumns: JValue = {
Review Comment:
This is for describe view query output.
Note we already seem to use the ViewSchema directly in the view resolution
for SchemaEvolution mode:
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala#L991
iiuc
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