ClickHouse/ClickBench

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ClickBench: a Benchmark For Analytical Databases

Is ClickHouse/ClickBench beginner-friendly?

In the last 30 days, ClickHouse/ClickBench merged 30 of 52 pull requests from outside contributors, and its maintainers usually reply within 1 day. No beginner-friendly issue is open right now; the list below has the other issues we hold for it.

Stars
1.1k
Forks
328
Open beginner issues
0
Indexed issues
27
Avg merge
4h 12m
Merged PRs (30d)
605
Dominant language
Shell
License
No license data
Last GitHub push
Oct 28, 2026
Latest indexed
Sep 15, 2026
No contributing guide
No code of conduct
Beginner labels
help wanted

How to contribute to ClickHouse/ClickBench

  1. There is no contributing guide, so start from the README and a few recently merged pull requests to see how changes are proposed.
  2. Follow the repository to hear when a new beginner-friendly issue opens, or look through the other issues below.
Beginner friendly Everything
Open All

Issues somebody may already be working on are listed last. List everything by date

  • suggest add an auto tranlsate feature for playground
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 35/100

    ClickHouse/ClickBench#2650 ·

    Maintainers usually reply within 1 day

  • Update benchmark for polars
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 48/100

    ClickHouse/ClickBench#2425 ·

    Maintainers usually reply within 1 day

  • doris-parquet-single fails before measurement on c6a.xlarge: FE cannot commit its 8 GiB initial heap
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    ClickHouse/ClickBench#2208 · 2 comments ·

    Maintainers usually reply within 1 day

  • Consider removing partitioned variants of Parquet, Data Lake, Vortex
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 55/100

    ClickHouse/ClickBench#2146 · 1 comment ·

    Maintainers usually reply within 1 day

  • Refresh CHYT benchmark results
    Open
    • Is something wrong?
    close in a month if not active help wanted

    Difficulty 3/5 1-2 days Newbie friendliness 55/100

    ClickHouse/ClickBench#1459 ·

    Maintainers usually reply within 1 day

  • Versions benchmark: Run TPC-H and TPC-DS queries in standard-compatible mode
    Open
    • Is something wrong?
    close in a month if not active

    Difficulty 3/5 1-2 days Newbie friendliness 58/100

    ClickHouse/ClickBench#1322 ·

    Maintainers usually reply within 1 day

  • Add Apache Kylin
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    ClickHouse/ClickBench#1089 ·

    Maintainers usually reply within 1 day

  • Add SynnoDB
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    ClickHouse/ClickBench#960 · 3 comments ·

    Maintainers usually reply within 1 day

  • concurrent_qps measures swap-thrashing, not throughput, for single-process engines (introduced in #860)
    May be free again Open
    • Is something wrong?

    ClickHouse/ClickBench#946 · 3 comments · 1 reaction · 1 assignee ·

    Maintainers usually reply within 1 day

  • Some, but not all scripts report "load time" for stateless engines (time to download parquet and sync)
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 45/100

    ClickHouse/ClickBench#944 · 1 reaction ·

    Maintainers usually reply within 1 day

  • ClickHouse: Cold runs preload data into memory before the timer
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 45/100

    ClickHouse/ClickBench#941 · 1 comment · 5 reactions ·

    Maintainers usually reply within 1 day

  • Methodology: 3 hot iterations is insufficient for JVM-based engines
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 35/100

    ClickHouse/ClickBench#934 · 3 comments · 5 reactions ·

    Maintainers usually reply within 1 day

  • "System & Machine" column should display sw version number(s)
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 42/100

    ClickHouse/ClickBench#639 · 5 comments · 1 reaction ·

    Maintainers usually reply within 1 day

  • Add Yellowbrick to ClickBench (someone promised to do it, but didn't)
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 45/100

    ClickHouse/ClickBench#628 · 4 comments ·

    Maintainers usually reply within 1 day

  • MariaDB ColumnStore eats all memory and makes the machine unresponsive
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    ClickHouse/ClickBench#545 · 8 comments ·

    Maintainers usually reply within 1 day

  • DuckDB: failed with OOM killer
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    ClickHouse/ClickBench#542 · 1 comment ·

    Maintainers usually reply within 1 day

  • Doris、Starrocks、SelectDB can't load data
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    ClickHouse/ClickBench#541 · 3 comments · 1 reaction ·

    Maintainers usually reply within 1 day

  • Snowflake CSV - use parallel scan settings for uncompressed CSV
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    ClickHouse/ClickBench#408 · 1 comment ·

    Maintainers usually reply within 1 day

  • Add Turso (it is unbelievably slow) (it also does not work)
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    ClickHouse/ClickBench#336 · 11 comments ·

    Maintainers usually reply within 1 day

  • InfluxDB benchmarks
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 38/100

    ClickHouse/ClickBench#186 · 2 comments · 3 reactions ·

    Maintainers usually reply within 1 day

  • Add BoilingData to ClickBench
    Open
    • Is something wrong?
    help wanted

    Difficulty 3/5 1-2 days Newbie friendliness 25/100

    ClickHouse/ClickBench#125 · 14 comments ·

    Maintainers usually reply within 1 day

  • The Pinot benchmark does not have indices.
    Open
    • Is something wrong?
    help wanted

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    ClickHouse/ClickBench#37 · 9 comments ·

    Maintainers usually reply within 1 day

  • ClickBench+
    Possibly taken Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    ClickHouse/ClickBench#1488 ·

    Maintainers usually reply within 1 day

  • Add FrigateBird
    Possibly taken Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    ClickHouse/ClickBench#809 ·

    Maintainers usually reply within 1 day

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