cloud-fan commented on a change in pull request #32854:
URL: https://github.com/apache/spark/pull/32854#discussion_r649411210
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2Strategy.scala
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@@ -437,6 +437,10 @@ class DataSourceV2Strategy(session: SparkSession) extends
Strategy with Predicat
val changes = keys.map(key => TableChange.removeProperty(key))
AlterTableExec(table.catalog, table.identifier, changes) :: Nil
+ case AlterTableDropColumns(table: ResolvedTable, cols) =>
Review comment:
shall we add a base trait for all alter table commands and define a `def
changes: Seq[TableChanges]`? Then we can handle all alter table commands in one
place.
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