Top 9 C++ Olap Projects

ClickHouse

208 34,054 10.0 C++

ClickHouse® is a free analytics DBMS for big data

Project mention: We Built a 19 PiB Logging Platform with ClickHouse and Saved Millions | news.ycombinator.com | 2024-04-02

Yes, we are working on it! :) Taking some of the learnings from current experimental JSON Object datatype, we are now working on what will become the production-ready implementation. Details here: https://github.com/ClickHouse/ClickHouse/issues/54864
Variant datatype is already available as experimental in 24.1, Dynamic datatype is WIP (PR almost ready), and JSON datatype is next up. Check out the latest comment on that issue with how the Dynamic datatype will work: https://github.com/ClickHouse/ClickHouse/issues/54864#issuec...

duckdb

52 16,576 10.0 C++

DuckDB is an in-process SQL OLAP Database Management System

Project mention: 🪄 DuckDB sql hack : get things SORTED w/ constraint CHECK | dev.to | 2024-04-04

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
heavydb

1 2,901 8.4 C++

HeavyDB (formerly OmniSciDB)
chdb

18 1,691 9.6 C++

chDB is an embedded OLAP SQL Engine 🚀 powered by ClickHouse

Project mention: FLaNK Stack Weekly 06 Nov 2023 | dev.to | 2023-11-06

kuzu

11 1,003 9.9 C++

Embeddable property graph database management system built for query speed and scalability. Implements Cypher.

Project mention: Unum: Vector Search engine in a single file | news.ycombinator.com | 2023-07-31

duckdb-wasm

11 916 9.6 C++

WebAssembly version of DuckDB

Project mention: Parquet-WASM: Rust-based WebAssembly bindings to read and write Parquet data | news.ycombinator.com | 2024-04-22

i think duckdb-wasm is closer to 6MB over wire, but ~36MB once decompressed. (see net panel when loading https://shell.duckdb.org/)
the decompressed size should be okay since it's not the same as parsing and JITing 36MB of JS.

stonedb

7 850 7.8 C++

StoneDB is an Open-Source MySQL HTAP and MySQL-Native DataBase for OLTP, Real-Time Analytics, a counterpart of MySQLHeatWave. (https://stonedb.io)
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
vinum

5 65 0.0 C++

Vinum is a SQL processor for Python, designed for data analysis workflows and in-memory analytics.
quickstep

2 35 2.7 C++

Quickstep project

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).