Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/17429#discussion_r108046296
--- Diff: python/pyspark/sql/functions.py ---
@@ -1675,15 +1675,18 @@ def array(*cols):
@since(1.5)
def array_contains(col, value):
"""
- Collection function: returns True if the array contains the given
value. The collection
- elements and value must be of the same type.
+ Collection function: returns null if the array is null, true if the
array contains the
+ given value, and false otherwise.
--- End diff --
like my other comment, probably should say `True` when in Python, @holdenk?
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