cloud-fan commented on code in PR #54126:
URL: https://github.com/apache/spark/pull/54126#discussion_r2838205227
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/ColumnDefinition.scala:
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@@ -273,3 +291,90 @@ case class DefaultValueExpression(
throw QueryCompilationErrors.defaultValueNotConstantError(statement,
colName, originalSQL)
}
}
+
+/**
+ * A wrapper expression to hold the generation expression and its original SQL
text.
+ * The child expression is resolved by the normal analyzer rules through the
expression tree.
+ */
+case class GeneratedColumnExpression(
Review Comment:
nit: put it in a new file
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