Hyukjin Kwon created SPARK-61001:
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Summary: Raise the errors of toLocalIterator of the Python client
as PySpark does
Key: SPARK-61001
URL: https://issues.apache.org/jira/browse/SPARK-61001
Project: Spark
Issue Type: Bug
Components: Connect
Affects Versions: connect-rust-4.3.0
Reporter: Hyukjin Kwon
In PySpark Connect, {{DataFrame.toLocalIterator()}} raises the error of an
execution that fails while it iterates. The Rust-backed Python client ends the
iteration without an error, so the rows of a failing query look complete: for
{{spark.sql("SELECT assert_true(id < 0) AS x FROM range(3)")}},
{{list(df.toLocalIterator())}} raises {{SparkRuntimeException}}
{{USER_RAISED_EXCEPTION}} in PySpark 4.3.0, with or without
{{prefetchPartitions}}, and is {{[]}} with the client. Raise the error as
PySpark does.
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