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parquet: Speed up BitReader/DeltaBitPackDecoder #325

Merged
merged 2 commits into from
May 24, 2021
Merged

parquet: Speed up BitReader/DeltaBitPackDecoder #325

merged 2 commits into from
May 24, 2021

Commits on May 19, 2021

  1. parquet: Avoid temporary BufferPtrs in BitReader 

    From a quick test, this speeds up reading delta-packed int columns by
over 30%.
    @kornholi
    kornholi committed May 19, 2021
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  2. parquet: Avoid some allocations in DeltaBitPackDecoder 

    From a quick test, it seems to decode around 10% faster overall.
    @kornholi
    kornholi committed May 19, 2021
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