Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/17865#discussion_r123962727
--- Diff: python/pyspark/sql/functions.py ---
@@ -200,17 +225,20 @@ def _():
@since(1.3)
def approxCountDistinct(col, rsd=None):
"""
- .. note:: Deprecated in 2.1, use approx_count_distinct instead.
+ .. note:: Deprecated in 2.1, use :func:`approx_count_distinct` instead.
"""
return approx_count_distinct(col, rsd)
@since(2.1)
def approx_count_distinct(col, rsd=None):
- """Returns a new :class:`Column` for approximate distinct count of
``col``.
+ """Aggregate function. Returns a new :class:`Column` for approximate
distinct count of column `col`.
--- End diff --
little nit `. R` -> `: r`.
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