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Posted to issues@spark.apache.org by "Yicong Huang (Jira)" <ji...@apache.org> on 2026/07/22 18:26:00 UTC
[jira] [Updated] (SPARK-58157) Remove TransformWithStateInPySparkRowInitStateSerializer
[ https://issues.apache.org/jira/browse/SPARK-58157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yicong Huang updated SPARK-58157:
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Description: Delete TransformWithStateInPySparkRowInitStateSerializer (python/pyspark/sql/pandas/serializers.py). Its init-state logic was moved into read_udfs() in worker.py by SPARK-58191 (PR #57337), which switched SQL_TRANSFORM_WITH_STATE_PYTHON_ROW_INIT_STATE_UDF to the plain ArrowStreamSerializer. No eval type references the class anymore. (was: Refactor SQL_TRANSFORM_WITH_STATE_PYTHON_ROW_UDF so that the worker uses the plain ArrowStreamSerializer for pure Arrow stream I/O, moving the per-eval-type logic (regrouping rows by grouping key into Row objects and converting result Rows back to Arrow) from TransformWithStateInPySparkRowSerializer into read_udfs() in worker.py. The serializer class is kept for now since TransformWithStateInPySparkRowInitStateSerializer (init-state variant, tracked separately) still subclasses it. Part of SPARK-55388.)
Summary: Remove TransformWithStateInPySparkRowInitStateSerializer (was: Refactor SQL_TRANSFORM_WITH_STATE_PYTHON_ROW_UDF)
> Remove TransformWithStateInPySparkRowInitStateSerializer
> --------------------------------------------------------
>
> Key: SPARK-58157
> URL: https://issues.apache.org/jira/browse/SPARK-58157
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 5.0.0
> Reporter: Yicong Huang
> Priority: Major
>
> Delete TransformWithStateInPySparkRowInitStateSerializer (python/pyspark/sql/pandas/serializers.py). Its init-state logic was moved into read_udfs() in worker.py by SPARK-58191 (PR #57337), which switched SQL_TRANSFORM_WITH_STATE_PYTHON_ROW_INIT_STATE_UDF to the plain ArrowStreamSerializer. No eval type references the class anymore.
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