Overlay Bitmap Encoding for Efficient Consumption of Apache Parquet Files
Summary: Recasts Parquet column chunks as compressed overlay-bitmaps, making indexes the physical representation rather than an adjunct. Integrated in Parquet C++/SAP IQ, it enables row-level predicate pushdown, improving compression and reducing loads by up to 100×. (summarized by gpt-5.6-luna on Aug 28 2026)
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Authors
- 1. Güneş Aluç (SAP)
- 2. Daniel J. Farrar (SAP)
- 3. Manoj Kumar Sharma (SAP)
- 4. Weibing Zhang (University of Waterloo)
BibTeX Citation
@article{aluc_vldb26,
title = {{Overlay Bitmap Encoding for Efficient Consumption of Apache Parquet Files}},
author = {Aluç, Güneş and Farrar, Daniel J. and Sharma, Manoj Kumar and Zhang, Weibing},
journal = {PVLDB},
series = {{VLDB} '26},
volume = {19},
number = {12},
pages = {3834--3846},
doi = {10.14778/3827998.3827999},
url = {https://doi.org/10.14778/3827998.3827999},
year = {2026}
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