TOtosh·Jun 12, 2026Submission
chDB is an in-process OLAP SQL Engine powered by ClickHouse
2 points · Open discussionchdb-io
chdb
Python2023–2026
chdb-io / chdb
chdb
chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse
12Distinct people
20Mentions
1Explicit recommenders
2.9KGitHub stars
What to know before exploring
What it is
chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse
GitHub
Where it is used
No documented product use was verified in the last source check.
What people are saying
I recommend using ClickHouse instead of DuckDB. It has been around since 2016, and it covers and extends the feature set of DuckDB with a huge margin. Worth noting that it…
zX41ZdbW used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.
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Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year20 dated mentions
Observed mentions: 2023-04-19 14:54:06 UTC to 2026-06-12 08:28:09 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 12 | 4 | 8 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 4 | 2 | 2 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 2 | 2 | 0 |
What Hacker News says
20 sourcesThat's great feedback, thank you! I just added your comment to the GH issue:
https://github.com/chdb-io/chdb/issues/101#issuecomment-2824...
Ps. I work for ClickHouse
In ClickHouse gets lazier and faster: Introducing lazy materializationThey have an interesting version that's packaged a bit like DuckDB - you can even "pip install" it: https://github.com/chdb-io/chdb
In ClickHouse gets lazier and faster: Introducing lazy materializationchDB: An In-Process OLAP SQL Engine Powered by ClickHouse
2 points · Open discussionShow HN: chDB 3.0 released, 12% faster than DuckDB
5 points · Open discussionShow HN: SQLite like API of ClickHouse engine in Python
1 points · Open discussionClickhouse has an embedded version (https://github.com/chdb-io/chdb), the issue with duck is that it's too buggy for production loads. You can see a nice list of the issues here:
https://news.ycombinator.com/item?id=41490707
In Show HN: BemiDB – Postgres read replica optimized for analyticsHey HN, creator of DB Pilot here.
I first announced DB Pilot on HN back in April: https://news.ycombinator.com/item?id=35761979.
Since then a lot has improved: More databases are supported, most of the product can now be used for free, and most importantly:
The app now comes with an analytics workspace powered by an embedded ClickHouse instance, running locally on your machine. This allows you to query local files, files on S3, PostgreSQL, SQLite & more - and all of those at once.
Embedding ClickHouse was possible thanks to chDB (https://github.com/chdb-io/chdb). A recent discussion on HN about it: https://news.ycombinator.com/item?id=37985005
In DB Pilot: Query Postgres, files, S3 and more – all at once, from your laptopWhere can I find an SVG version of this logo? https://github.com/chdb-io/chdb/raw/main/docs/_static/snake-...
In ChDB: Embedded OLAP SQL Engine Powered by ClickHouseChDB: Embedded OLAP SQL Engine Powered by ClickHouse
111 points · Open discussionI recommend using ClickHouse instead of DuckDB.
It has been around since 2016, and it covers and extends the feature set of DuckDB with a huge margin. Worth noting that it never has breaking changes in its table format MergeTree.
I'm tracking the progress of DuckDB and see that it is modeled after ClickHouse, but does not approach it in terms of feature completeness, stability, or performance.
The closest to DuckDB option is to use its self-contained version, clickhouse-local: https://clickhouse.com/blog/extracting-converting-querying-l... or an embedded version, chdb: https://github.com/chdb-io/chdb
In DuckDB 0.9Different beasts, but if by any chance you love ClickHouse already and just want to run OLAP queries in-process, there's chdb: https://github.com/chdb-io/chdb
In Is ClickHouse Moving Away from Open Source?ClickHouse power is to have one binary that runs anywhere :
- local
- server
- cloud (*)
- serverless
- in-process https://github.com/chdb-io/chdb similar to DuckDB
(*) except for the forked cloud versions, ClickHouse Inc, Huawei, etc ...
In Is ClickHouse Moving Away from Open Source?Showing the 15 most recent of 20 sources. Enable JavaScript to search and browse every indexed mention.