ClickHouse C – Talk to ClickHouse using its native binary protocol
ClickHouse C is a header-only C client library for the ClickHouse native binary protocol. It allows for efficient data decoding without requiring TCP or compression dependencies.
Why it matters
Provides developers with a lightweight, high-performance tool for integrating ClickHouse data processing into C-based systems.
Header-only C client for the ClickHouse Native wire format — the Native Protocol over TCP carrying Native Format blocks. One core header, plus optional follow-up headers for TCP, compression, codecs, and I/O backends.
Designed for embedding inside PostgreSQL extensions ( palloc arena, longjmp ) but with no PG-specific code. Including clickhouse.h alone gives a pure block decoder over caller-supplied chc_io , usable for reading clickhouse-local 's FORMAT Native from a pipe with no TCP, no compression, no link-time deps beyond libc.
Decode a clickhouse local query without TCP or compression.
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