ClickHouseClickHouse is a fast open-source column-oriented database management system that allows generating analytical data reports in real-time using SQL queries | 中文文档 | clickhouse 中文文档
okhttpOkHttp is an HTTP client that’s efficient by default: HTTP/2 support allows all requests to the same host to share a socket. Connection pooling reduces request latency (if HTTP/2 isn’t available). Transparent GZIP shrinks download sizes. Response caching avoids the network completely for repeat requests.
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