gengliangwang commented on code in PR #50496:
URL: https://github.com/apache/spark/pull/50496#discussion_r2025494537
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sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
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@@ -1337,6 +1341,15 @@ colType
: colName=errorCapturingIdentifier dataType (errorCapturingNot NULL)?
commentSpec?
;
+tableElementList
+ : tableElement (COMMA tableElement)*
+ ;
+
+tableElement
+ : tableConstraintDefinition
+ | colDefinition
Review Comment:
This syntax is from the ANSI SQL standard.
A `tableElement` can be `colDefinition` or `tableConstraintDefinition`. A
`colDefinition` can contain a column constraint after column name and column
data type.
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