PR0: forward batch_size parameter to PyArrow Scanner#3044
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sumedhsakdeo wants to merge 1 commit intoapache:mainfrom
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PR0: forward batch_size parameter to PyArrow Scanner#3044sumedhsakdeo wants to merge 1 commit intoapache:mainfrom
sumedhsakdeo wants to merge 1 commit intoapache:mainfrom
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Add batch_size parameter to _task_to_record_batches, _record_batches_from_scan_tasks_and_deletes, ArrowScan.to_record_batches, and DataScan.to_arrow_batch_reader so users can control the number of rows per RecordBatch returned by PyArrow's Scanner. Closes partially apache#3036 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Rationale for this change
Closes partially #3036
Summary
batch_sizeparameter to PyArrow'sds.Scanner.from_fragment()to control rows per RecordBatch_task_to_record_batches→_record_batches_from_scan_tasks_and_deletes→ArrowScan.to_record_batches→DataScan.to_arrow_batch_readerPR Stack
This is PR 1 of 3 for #3036:
batch_sizeforwardingstreamingflag — stop materializing entire filesconcurrent_files— bounded concurrent streamingAre these changes tested?
Yes — unit tests for batch_size=100 and batch_size=None in test_pyarrow.py.
Are there any user-facing changes?
Yes — new batch_size param on to_arrow_batch_reader().