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Posts tagged Cross-post
ClickHouse and ProxySQL queries rewrite

July 16, 2018
ProxySQL is a popular open source, high performance and protocol-aware proxy server for MySQL and its forks. Since September 2017 ProxySQL supports ClickHouse as a backend, so clients can connect to ClickHouse via MySQL protocol. In practice, this helps MySQL-aware applications to start using ClickHouse as without changes in the client library.

To avoid some limitations to this approach, ProxySQL creator René Cannaò added additional functionality for query rewrite. With his permission, we cross-post his article describing new functionality in our blog.

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Aggregate MySQL data at high speed with ClickHouse

Feb 12, 2018
There are multiple ways how ClickHouse and MySQL can work together. External Dictionaries, ProxySQL support or [realtime streaming] of MySQL binary logs into ClickHouse. A few weeks ago ClickHouse team has released mysql() table function that allows to access MySQL data directly from ClickHouse. This opens up a number of interesting capabilities. Accidentally we have found [a blog article in Japanese] by Mikage Sawatari‏ , that tests a new way of integration and translated it for our blog with some minor edits.

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