cloud-fan commented on a change in pull request #33200:
URL: https://github.com/apache/spark/pull/33200#discussion_r676413397
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
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@@ -1099,21 +1066,84 @@ case class UnsetTableProperties(
copy(table = newChild)
}
-trait AlterTableCommand extends UnaryCommand {
+trait AlterTableColumnCommand extends UnaryCommand {
def table: LogicalPlan
- def operation: String
def changes: Seq[TableChange]
override def child: LogicalPlan = table
}
+/**
+ * The logical plan of the ALTER TABLE ... ADD COLUMNS command.
+ */
+case class AlterTableAddColumns(
+ table: LogicalPlan,
+ columnsToAdd: Seq[QualifiedColType]) extends AlterTableColumnCommand {
Review comment:
since `QualifiedColType` is not an expression, the default
`QueryPlan.resolved` won't work here. Can we override `resolved`?
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