Aaaaaaron commented on a change in pull request #2019:
URL: https://github.com/apache/calcite/pull/2019#discussion_r441298797
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File path: core/src/main/java/org/apache/calcite/sql/type/SqlTypeUtil.java
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@@ -1510,6 +1563,31 @@ public static boolean isMap(RelDataType type) {
return type.getSqlTypeName() == SqlTypeName.MAP;
}
+ /**
+ * @return true if type is MULTISET
+ */
+ public static boolean isMultiset(RelDataType type) {
Review comment:
Indeed, I did not use this method, but basically, all RelDataType have a
similar utility method, so I added this for the future use. If you think this
is unnecessary, I can remove this.
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