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Grouping Time Series for Efficient Columnar Storage

Summary: Groups time series by sharing a single time column to reduce timestamp repetition, at the expense of potential nulls. NP-hard to optimize; propose heuristic grouping, deployed in Apache IoTDB, with storage comparable to single-column schemes. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
6588
Venue
SIGMOD
Year
2023
Pagerank
5.093636e-05
Overall Rank
11,381 | 21.92%
DOI
10.1145/3588703

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BibTeX Citation

@inproceedings{fang_sigmod23,
        title = {{Grouping Time Series for Efficient Columnar Storage}},
        author = {Fang, Chenguang and Song, Shaoxu and Guan, Haoquan and Huang, Xiangdong and Wang, Chen and Wang, Jianmin},
        series = {{SIGMOD} '23},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3588703},
        url = {https://dl.acm.org/doi/10.1145/3588703},
        year = {2023}
}

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