maropu commented on a change in pull request #31639:
URL: https://github.com/apache/spark/pull/31639#discussion_r582449149
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
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@@ -874,13 +874,29 @@ class SessionCatalog(
// the extra columns that we don't require), with UpCast (to make sure the
type change is
// safe) and Alias (to respect user-specified view column names) according
to the view schema
// in the catalog.
- val projectList = viewColumnNames.zip(metadata.schema).map { case (name,
field) =>
- Alias(UpCast(UnresolvedAttribute.quoted(name), field.dataType),
field.name)(
- explicitMetadata = Some(field.metadata))
+ val projectList = if (isTempView) {
+ viewColumnNames.zip(metadata.schema).map { case (name, field) =>
+ Alias(UpCast(UnresolvedAttribute.quoted(name), field.dataType),
field.name)(
+ explicitMetadata = Some(field.metadata))
+ }
+ } else {
+ viewColumnNames.zip(metadata.schema).
Review comment:
Could you leave some comments here about why we need this handling?
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