valyala / chclient

Fast http client for SELECT queries in clickhouse

chclient - fast http client for ClickHouse

Features

• Optimized for reading large responses.
• May read more than 20M rows per second on a single CPU core thanks to tsvreader.
• Easily reads responses with billion rows thanks to response streaming. There is no need to fit the whole response in memory.
• Works ideally with chproxy.
• Sends requests to fallback address if requests to primary clickhouse address fail.

Documentation

See these docs.