Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/17429#discussion_r108030625
--- 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 --
Other documentation use `true` rather than `True`. So, I matach this to
`true`. I am willing to sweep if anyone feels this should be fixed.
The reason I removed `The collection elements and value must be of the same
type` is it seems we can provide other types that are implicitly castable.
This is not documented in Scala/R too. So, I instead provided a doctest as
an excpetion in the Python documentation.
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