davidradl commented on code in PR #24526:
URL: https://github.com/apache/flink/pull/24526#discussion_r1611982523
##########
docs/data/sql_functions.yml:
##########
@@ -688,6 +688,9 @@ collection:
- sql: ARRAY_EXCEPT(array1, array2)
table: arrayOne.arrayExcept(arrayTwo)
description: Returns an ARRAY that contains the elements from array1 that
are not in array2. If no elements remain after excluding the elements in array2
from array1, the function returns an empty ARRAY. If one or both arguments are
NULL, the function returns NULL. The order of the elements from array1 is kept.
+ - sql: ARRAY_INTERSECT(array1, array2)
+ table: array1.arrayIntersect(array2)
+ description: Returns an ARRAY that contains the elements from array1 that
are also in array2. If no elements that are both in array1 and array2, the
function returns an empty ARRAY. If any of the array is null, the function will
return null. The order of the elements from array1 is kept.
Review Comment:
we should mention that the result does not contain duplicates here, as per
the agreement I see in the pr conversation
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