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chore: upgrade arrow-rs from 57.1.0 to 59.0.0 #7141
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total_rowsasbatch_sizemay cause over-allocationtotal_rowshere isrg.num_rows() as usize— the full row-group size — yet the actual reads are chunked at thechunk_sizelevel indecode_one_streaming. Ifbatch_sizecontrols internal buffer pre-allocation inside parquet-rs (as is typical), passing the full row-group count (potentially millions of rows) instead of thechunk_sizehint could cause the reader to pre-allocate far more memory than is ever needed per decode cycle.Consider threading
chunk_sizedown throughbuild_top_field_reader→build_primitive_leaf_readerso each reader pre-allocates only what will actually be consumed per batch.Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!
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this seems like a reasonable point. wdyt?