[SPARK-40414][SQL][PYTHON] More generic type on PythonArrowInput and PythonArrowOutput#37864
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HeartSaVioR wants to merge 2 commits intoapache:masterfrom
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[SPARK-40414][SQL][PYTHON] More generic type on PythonArrowInput and PythonArrowOutput#37864HeartSaVioR wants to merge 2 commits intoapache:masterfrom
HeartSaVioR wants to merge 2 commits intoapache:masterfrom
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… PythonArrowOutput
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cc. @HyukjinKwon @ueshin Please take a look, thanks! |
HyukjinKwon
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Sep 13, 2022
| * Python (Arrow) to JVM (output type being deserialized from ColumnarBatch). | ||
| */ | ||
| private[python] trait PythonArrowOutput { self: BasePythonRunner[_, ColumnarBatch] => | ||
| private[python] trait PythonArrowOutput[OUT <: AnyRef] { self: BasePythonRunner[_, OUT] => |
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qq: should it be <: AnyRef?
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We assign null to the OUT type (although that's a trick) hence need to be AnyRef at least if I understand correctly.
HyukjinKwon
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Sep 13, 2022
| */ | ||
| private[python] trait PythonArrowInput { self: BasePythonRunner[Iterator[InternalRow], _] => | ||
| private[python] trait PythonArrowInput[IN] { self: BasePythonRunner[IN, _] => | ||
| protected val sqlConf = SQLConf.get |
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Seems like we don't need this (in #37863, it's not used too)
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Ah OK didn't notice this. Will remove this. Thanks for the pointer.
HyukjinKwon
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Sep 13, 2022
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ueshin
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Sep 13, 2022
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| root: VectorSchemaRoot, | ||
| writer: ArrowStreamWriter, | ||
| dataOut: DataOutputStream, | ||
| inputIterator: Iterator[Iterator[InternalRow]]): Unit = { |
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I'll merge this PR once build is green. |
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Thanks for reviewing! Merging to master. |
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What changes were proposed in this pull request?
This PR proposes to change PythonArrowInput and PythonArrowOutput to be more generic to cover the complex data type on both input and output. This is a baseline work for #37863.
Why are the changes needed?
The traits PythonArrowInput and PythonArrowOutput can be further generalized to cover complex data type on both input and output. E.g. Not all operators would have simple InternalRow as input data to pass to Python worker and vice versa for output data.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing tests.