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FlatStor: An Efficient Embedded-Index Based Columnar Data Layout for Multimodal Data Workloads

Summary: FlatStor is a FlatBuffers-based columnar layout with embedded indexes, vertically partitioning multimodal fields as byte streams and applying FSST compression. It enables fast point access and cuts inference latency/storage overhead by 99.6%/91.3% versus Parquet, outperforming LanceV2 by 41.3%. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID
h96dec55635f41a72
Venue
VLDB
Year
2026
Pagerank
4.9605343e-05
Overall Rank
10,765 | 27.85%
DOI
10.14778/3772181.3772182
PDF
Download (CC BY-NC-ND 4.0)

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Authors

BibTeX Citation

@article{zhang_vldb26,
        title = {{FlatStor: An Efficient Embedded-Index Based Columnar Data Layout for Multimodal Data Workloads}},
        author = {Zhang, Chi and Zhang, Shihao and Gu, Yunfei and Wu, Chentao and Li, Jie and Zhang, Qin and Chen, Xusheng and Meng, Jie},
        journal = {PVLDB},
        series = {{VLDB} '26},
        volume = {19},
        number = {1},
        pages = {1--14},
        doi = {10.14778/3772181.3772182},
        url = {https://doi.org/10.14778/3772181.3772182},
        year = {2026}
}

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Outgoing Citations (Sorted by Pagerank)

Showing 19 of 19 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
48 Weaving Relations for Cache Performance 2001 VLDB 0.00043770511
52 The Snowflake Elastic Data Warehouse 2016 SIGMOD 0.00041439488
61 Integrating Compression and Execution in Column-Oriented Database Systems 2006 SIGMOD 0.00039323387
63 Amazon Aurora: Design Considerations for High Throughput Cloud-Native Relational Databases 2017 SIGMOD 0.00038609177
114 A Decomposition Storage Model 1985 SIGMOD 0.00031854546
226 Amazon Redshift and the Case for Simpler Data Warehouses 2015 SIGMOD 0.0002389883
332 Column-Stores vs. Row-Stores: How Different Are They Really? 2008 SIGMOD 0.00020739447
651 Amazon Redshift Re-invented 2022 SIGMOD 0.00015126716
1,134 Dremel: A Decade of Interactive SQL Analysis at Web Scale 2020 VLDB 0.00011863043
1,337 Column-oriented Database Systems 2009 VLDB 0.00010968302
1,383 H2O: A Hands-free Adaptive Store 2014 SIGMOD 0.00010826996
1,387 Procella: Unifying serving and analytical data at YouTube 2019 VLDB 0.0001080904
2,062 tf.data: A Machine Learning Data Processing Framework 2021 VLDB 9.0820315e-05
2,239 BtrBlocks: Efficient Columnar Compression for Data Lakes 2023 SIGMOD 8.7753778e-05
3,649 The evolution of Amazon Redshift (extended abstract) 2021 VLDB 7.1172165e-05
3,809 An Empirical Evaluation of Columnar Storage Formats 2024 VLDB 6.9890843e-05
4,126 Napa: Powering Scalable Data Warehousing with Robust Query Performance at Google 2021 VLDB 6.7797675e-05
4,373 A Deep Dive into Common Open Formats for Analytical DBMSs 2023 VLDB 6.6191786e-05
5,825 Column Stores For Wide and Sparse Data 2007 CIDR 5.9647545e-05
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