lancelly commented on code in PR #27614:
URL: https://github.com/apache/shardingsphere/pull/27614#discussion_r1280592716
##########
parser/sql/dialect/oracle/src/main/antlr4/imports/oracle/BaseRule.g4:
##########
@@ -1984,3 +1985,13 @@ xmlTableOptions
xmlTableColumn
: columnName (FOR ORDINALITY | (dataType | XMLTYPE (LP_ SEQUENCE RP_ BY
REF)?) (PATH STRING_)? (DEFAULT expr)?)
;
+
+multisetExpr
+ : columnName MULTISET multisetOperator (ALL | DISTINCT)? columnName
+ ;
+
+multisetOperator
+ : EXCEPT
+ | INTERSECT
+ | UNION
+ ;
Review Comment:
Done
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