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Database Entry

chDB

Acquired Company AI-Assisted OLAP

chDB is an embedded SQL OLAP based on ClickHouse.

Website
https://chdb.io[01]
Source Code
https://github.com/chdb-io/chdb[02]
Tech Docs
https://clickhouse.com/docs/chdb[03]
Twitter
@chdb_io
Developer
Country of Origin
SG
Start Year
2023 [04]
Acquired By
Coding Agent
Project Type
Open Source
Written in
C++
Derived From
ClickHouse
Operating System
Linux
License
Apache v2

Database Entry

chDB

Acquired Company AI-Assisted OLAP

chDB is an embedded SQL OLAP based on ClickHouse.

History

The chDB project was acquired by ClickHouse, Inc. in 2024.

Compression

Dictionary Encoding Delta Encoding Naïve (Page-Level)

Same as ClickHouse

Concurrency Control

Not Supported

Same as ClickHouse

Data Model

Relational

Same as ClickHouse

Foreign Keys

Not Supported

Same as ClickHouse

Indexes

Log-Structured Merge Tree

Same as ClickHouse

Joins

Hash Join

Same as ClickHouse

Logging

Physical Logging

Same as ClickHouse

Parallel Execution

Intra-Operator (Horizontal) Inter-Operator (Vertical)

Same as ClickHouse

Query Compilation

Code Generation

Same as ClickHouse

Query Execution

Vectorized Model

Same as ClickHouse

Query Interface

Custom API SQL HTTP / REST Command-line / Shell

Same as ClickHouse

Storage Architecture

Disk-oriented In-Memory Hybrid

Same as ClickHouse

Storage Model

Decomposition Storage Model (Columnar)

Same as ClickHouse

Storage Organization

Indexed Sequential Access Method (ISAM) Sorted Files

Same as ClickHouse

Stored Procedures

Not Supported

Same as ClickHouse

System Architecture

Shared-Nothing

Same as ClickHouse

Views

Virtual Views Materialized Views

Same as ClickHouse

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Citations

6 sources
  1. https://chdb.io chdb.io Dead — Check Archive
  2. GitHub - chdb-io/chdb: chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse · GitHub github.com
  3. chDB | ClickHouse Docs clickhouse.com
  4. initial 23.6 · chdb-io/chdb@6cc800a · GitHub github.com
  5. chDB joins the ClickHouse family clickhouse.com
  6. https://github.com/chdb-io/chdb/commit/2e908e7043ccf63d7987036871ce97aa0170889c github.com
Revision #3 Last Updated: