[GLUTEN-12280][VL] Fix Spark 4 Arrow Python UDF stream writer#12345
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ReemaAlzaid wants to merge 2 commits into
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[GLUTEN-12280][VL] Fix Spark 4 Arrow Python UDF stream writer#12345ReemaAlzaid wants to merge 2 commits into
ReemaAlzaid wants to merge 2 commits into
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What changes are proposed in this pull request?
Fixes #12280.
Fix Spark 4 Arrow Python UDF execution with the Velox backend by keeping the Arrow stream writer alive across input batches instead of reopening the IPC stream per batch.
Also adds a regression test for Arrow Python UDF over Parquet scan
How was this patch tested?
Added
ArrowEvalPythonExecSuitecoverage.Verified locally on Spark 4.0.2 / Scala 2.13 / linux aarch64. The repro uses
ColumnarArrowPythonRunner, returnsmax(ship_len) = 7, and no longer fails withInvalid IPC stream