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10 lines
582 B
Markdown
10 lines
582 B
Markdown
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slug: /en/interfaces/tcp
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sidebar_position: 18
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sidebar_label: Native Interface (TCP)
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---
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# Native Interface (TCP)
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The native protocol is used in the [command-line client](../interfaces/cli.md), for inter-server communication during distributed query processing, and also in other C++ programs. Unfortunately, native ClickHouse protocol does not have formal specification yet, but it can be reverse-engineered from ClickHouse source code (starting [around here](https://github.com/ClickHouse/ClickHouse/tree/master/src/Client)) and/or by intercepting and analyzing TCP traffic.
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