HOT: A Height Optimized Trie Index for Main-Memory Database Systems
Summary: Height Optimized Trie (HOT) - in-memory index with per-node dynamic bit-width to maximize fanout and cache locality. Compact node layout and SIMD-accelerated search deliver superior string-key performance and smaller memory footprint vs. state-of-the-art indexes, with competitive integer-key results; a general-purpose main-memory index for DBs. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Robert Binna (University of Innsbruck)
- 2. Eva Zangerle (University of Innsbruck)
- 3. Martin Pichl (University of Innsbruck)
- 4. Günther Specht (University of Innsbruck)
- 5. Viktor Leis (Technical University of Munich)
BibTeX Citation
@inproceedings{binna_sigmod18,
title = {{HOT: A Height Optimized Trie Index for Main-Memory Database Systems}},
author = {Binna, Robert and Zangerle, Eva and Pichl, Martin and Specht, Günther and Leis, Viktor},
series = {{SIGMOD} '18},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/3183713.3196896},
url = {https://dl.acm.org/doi/10.1145/3183713.3196896},
year = {2018}
}Incoming Citations (Sorted by Pagerank)
Showing 38 of 38 citing papers.
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Outgoing Citations (Sorted by Pagerank)
Showing 10 of 10 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 68 | Making B+-Trees Cache Conscious in Main Memory | 2000 | SIGMOD | 0.00037861537 |
| 80 | H-Store: A High-Performance, Distributed Main Memory Transaction Processing System | 2008 | VLDB | 0.00036267455 |
| 280 | FAST: Fast Architecture Sensitive Tree Search on Modern CPUs and GPUs | 2010 | SIGMOD | 0.00022267903 |
| 289 | Implementing Database Operations Using SIMD Instructions | 2002 | SIGMOD | 0.00021955394 |
| 542 | FOEDUS: OLTP Engine for a Thousand Cores and NVRAM | 2015 | SIGMOD | 0.00016620527 |
| 548 | Improving Index Performance through Prefetching | 2001 | SIGMOD | 0.00016534019 |
| 892 | SuRF: Practical Range Query Filtering with Fast Succinct Tries | 2018 | SIGMOD | 0.00013207671 |
| 964 | Reducing the Storage Overhead of Main-Memory OLTP Databases with Hybrid Indexes | 2016 | SIGMOD | 0.00012798312 |
| 1,328 | Building a Bw-Tree Takes More Than Just Buzz Words | 2018 | SIGMOD | 0.00011013165 |
| 3,309 | To Lock, Swap, or Elide: On the Interplay of Hardware Transactional Memory and Lock-Free Indexing | 2015 | VLDB | 7.4176874e-05 |
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