szehon-ho commented on code in PR #52359:
URL: https://github.com/apache/spark/pull/52359#discussion_r2353590602
##########
sql/core/src/test/scala/org/apache/spark/sql/connector/MergeIntoTableSuiteBase.scala:
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@@ -2572,7 +2572,8 @@ abstract class MergeIntoTableSuiteBase extends
RowLevelOperationSuiteBase
}
}
- // TODO- support schema evolution for missing nested types using UPDATE SET
* and INSERT *
+ // currently the source struct needs to be fully compatible with target
struct
Review Comment:
Note: this is unrelated, but not sure we are going to do the TODO. It can
be addressed it in https://github.com/apache/spark/pull/52347, but still
debating whether it makes sense to do or not
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