snuyanzin commented on code in PR #21958:
URL: https://github.com/apache/flink/pull/21958#discussion_r1109698942
##########
flink-python/pyflink/table/expression.py:
##########
@@ -1487,6 +1487,13 @@ def array_distinct(self) -> 'Expression':
"""
return _binary_op("arrayDistinct")(self)
+ def array_union(self, array) -> 'Expression':
+ """
+ Returns an array of the elements in the union of array1 and array2,
without duplicates.
+ If both of the array are null, the function will return null.
Review Comment:
same here
##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/BaseExpressions.java:
##########
@@ -1359,6 +1360,16 @@ public OutType arrayDistinct() {
return toApiSpecificExpression(unresolvedCall(ARRAY_DISTINCT,
toExpr()));
}
+ /**
+ * Returns an array of the elements in the union of array1 and array2,
without duplicates.
Review Comment:
What about ordering?
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