gengliangwang commented on code in PR #40996:
URL: https://github.com/apache/spark/pull/40996#discussion_r1180779215
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/ResolveDefaultColumnsUtil.scala:
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@@ -344,3 +358,13 @@ object ResolveDefaultColumns {
}
}
}
+
+/**
+ * Represents a table with an underlying raw schema to use for resolving
DEFAULT column references.
+ * The 'ignoreColumnsForInserts' field represents a set of column names to
exclude from
+ * consideration when performing INSERT INTO commands, if any.
+ */
+trait TableWithRawSchemaForColumnDefaults {
+ def rawSchema: Option[StructType]
Review Comment:
Why the result is optional? Could you write an example about the difference
between `rawSchema` and `schema`?
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