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perf: apply predicates and statistics of parquet files in streaming mode #12439

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merged 4 commits into from
Nov 14, 2023

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@ritchie46 ritchie46 commented Nov 14, 2023

It turned out we didn't push the predicates all the way in the readers for streaming queries. Meaning that we still loaded, and worse, downloaded files we don't need.

closes #12419

@github-actions github-actions bot added performance Performance issues or improvements python Related to Python Polars rust Related to Rust Polars labels Nov 14, 2023
@ritchie46 ritchie46 merged commit ab3c445 into main Nov 14, 2023
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@ritchie46 ritchie46 deleted the pred branch November 14, 2023 19:58
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Streaming engine much slower than default engine for downloading via scan_parquet
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