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embryo-labs

Database Group at IIIS, Tsinghua University

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  1. EvaluationOfColumnarFormats EvaluationOfColumnarFormats Public

    [VLDB 2023 Vol 17] "An Empirical Evaluation of Columnar Storage Formats"

    70 9

  2. Blitzcrank Blitzcrank Public

    [VLDB'24] Blitzcrank is to compress in-memory, OLTP databases. It introduces a new entropy coding algorithm named Delayed Coding.

    C++ 39

  3. Robust-Predicate-Transfer Robust-Predicate-Transfer Public archive

    [SIGMOD'25] Source code for the paper: Debunking the Myth of Join Ordering: Toward Robust SQL Analytics

    C++ 22 10

  4. dynamic-predicate-transfer dynamic-predicate-transfer Public

    [VLDB'26] This repository provides a DuckDB implementation of RPT+, following a Yannakakis-style execution framework.

    C++ 22 6

  5. Efficient-Disk-Learned-Index Efficient-Disk-Learned-Index Public

    [SIGMOD’24] Source code for the paper: Making In-Memory Learned Indexes Efficient on Disk

    C++ 14 4

  6. Chunk-Compaction-in-Vectorized-Execution Chunk-Compaction-in-Vectorized-Execution Public

    [SIGMOD'25] We show the data chunk compaction problem in vectorized execution, and propose practical compaction solutions.

    C++ 14

Repositories

Showing 10 of 11 repositories
  • Blitzcrank Public

    [VLDB'24] Blitzcrank is to compress in-memory, OLTP databases. It introduces a new entropy coding algorithm named Delayed Coding.

    embryo-labs/Blitzcrank's past year of commit activity
    C++ 39 MIT 0 0 0 Updated Sep 14, 2026
  • delayed-coding Public

    Delayed Coding entropy codec: portable Rust core, C/C++ interface, and optional AVX-512 blocks

    embryo-labs/delayed-coding's past year of commit activity
    Rust 0 MIT 0 0 0 Updated Sep 14, 2026
  • dynamic-predicate-transfer Public

    [VLDB'26] This repository provides a DuckDB implementation of RPT+, following a Yannakakis-style execution framework.

    embryo-labs/dynamic-predicate-transfer's past year of commit activity
    C++ 22 MIT 6 0 0 Updated Apr 4, 2026
  • EvaluationOfColumnarFormats Public

    [VLDB 2023 Vol 17] "An Empirical Evaluation of Columnar Storage Formats"

    embryo-labs/EvaluationOfColumnarFormats's past year of commit activity
    70 MIT 9 0 0 Updated Oct 15, 2025
  • Chunk-Compaction-in-Vectorized-Execution Public

    [SIGMOD'25] We show the data chunk compaction problem in vectorized execution, and propose practical compaction solutions.

    embryo-labs/Chunk-Compaction-in-Vectorized-Execution's past year of commit activity
    C++ 14 MIT 0 0 0 Updated Oct 10, 2025
  • Robust-Predicate-Transfer Public archive

    [SIGMOD'25] Source code for the paper: Debunking the Myth of Join Ordering: Toward Robust SQL Analytics

    embryo-labs/Robust-Predicate-Transfer's past year of commit activity
    C++ 22 MIT 10 0 0 Updated Sep 4, 2025
  • embryo-labs/SIGMOD2025Contest-Embryo's past year of commit activity
    C++ 8 1 0 0 Updated Jun 5, 2025
  • QuerySplit Public

    [SIGMOD'23] Source code for the paper: Efficient Query Re-optimization with Judicious Subquery Selection

    embryo-labs/QuerySplit's past year of commit activity
    C 7 4 2 0 Updated Nov 6, 2024
  • NULLS Public

    [DaMoN2024] "NULLS! Revisiting Null Representation in Modern Columnar Formats"

    embryo-labs/NULLS's past year of commit activity
    C++ 3 MIT 0 0 0 Updated Aug 13, 2024
  • Efficient-Disk-Learned-Index Public

    [SIGMOD’24] Source code for the paper: Making In-Memory Learned Indexes Efficient on Disk

    embryo-labs/Efficient-Disk-Learned-Index's past year of commit activity
    C++ 14 4 0 0 Updated Jun 28, 2024

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