dongjoon-hyun commented on code in PR #38823:
URL: https://github.com/apache/spark/pull/38823#discussion_r1116489013
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sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/Column.java:
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@@ -33,6 +33,8 @@
* {@link TableCatalog#createTable(Identifier, Column[], Transform[], Map)},
and report it in
* {@link Table#columns()} by calling the static {@code create} functions of
this interface to
* create it.
+ * <p>
+ * A column cannot have both a default value and a generation expression.
Review Comment:
~Just a question. Do we have a proper error message for this case?~
Never mind. I found `GENERATED_COLUMN_WITH_DEFAULT_VALUE`.
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