Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18664#discussion_r145901149
--- Diff: python/pyspark/serializers.py ---
@@ -223,12 +224,13 @@ def _create_batch(series):
# If a nullable integer series has been promoted to floating point
with NaNs, need to cast
# NOTE: this is not necessary with Arrow >= 0.7
def cast_series(s, t):
- if t is None or s.dtype == t.to_pandas_dtype():
+ if t is None or s.dtype == t.to_pandas_dtype() or type(t) ==
pa.TimestampType:
--- End diff --
Add a to-do here.
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