liuyongvs commented on code in PR #22267:
URL: https://github.com/apache/flink/pull/22267#discussion_r1151331431
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docs/data/sql_functions.yml:
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@@ -634,6 +634,9 @@ collection:
- sql: ARRAY_DISTINCT(haystack)
table: haystack.arrayDistinct()
description: Returns an array with unique elements. If the array itself is
null, the function will return null. Keeps ordering of elements.
+ - sql: ARRAY_POSITION(haystack, needle)
+ table: haystack.arrayPosition(needle)
+ description: Returns the position of the first occurrence of element in
the given array as long. Returns 0 if the given value could not be found in the
array. Returns null if either of the arguments are null. And this is not zero
based, but 1-based index. The first element in the array has index 1.
Review Comment:
spark return bigint, just aligned with spark
https://github.com/apache/spark/blob/5a56c17283103821714ffaaf1c764e05d0ff6b58/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala#L2294
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