Yicong-Huang commented on code in PR #54125:
URL: https://github.com/apache/spark/pull/54125#discussion_r2761981653
##########
python/pyspark/sql/pandas/serializers.py:
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@@ -319,11 +294,15 @@ def apply_type_coercion():
f"Expected: {expected_field_names}, but got:
{actual_field_names}."
)
- coerced_arrays = []
- for i, field in enumerate(arrow_return_type):
- original_array = batch.column(i)
- coerced_array = self._create_array(original_array,
field.type)
- coerced_arrays.append(coerced_array)
+ coerced_arrays = [
+ ArrowBatchTransformer.cast_array(
Review Comment:
good catch! it is NOT for batch. I had [todo
comments](https://github.com/apache/spark/pull/54125/changes#diff-d97b084cdf78f333ac97b2b14831ec37828d6f26e9d19ca5092642a14a5ad376R108-R110).
In POC, this method will be replaced by `enforece_schema` transformer. In this
PR I wanted to move this method as it is outside. Next I will make it a
transformer.
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