Asynchronous Yandex ClickHouse client library for rust programming language.

Library hosted on crates.io.

[dependencies]
clickhouse-rs = "*"

• Date
• DateTime
• Decimal(P, S)
• Float32, Float64
• String, FixedString(N)
• UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64
• Nullable(T)
• Array(UInt/Int/Float/String/Date/DateTime)
• IPv4/IPv6
• UUID

schema:https://user:password@host[:port]/database?param1=value1&...&paramN=valueN

parameters:

• compression - Whether or not use compression (defaults to none). Possible choices:

  • none
  • lz4

• readonly - Restricts permissions for read data, write data and change settings queries. (defaults to none). Possible choices:

  • 0 - All queries are allowed.
  • 1 - Only read data queries are allowed.
  • 2 - Read data and change settings queries are allowed.

• connection_timeout - Timeout for connection (defaults to 500 ms)

• query_timeout - Timeout for queries (defaults to 180 sec).

• insert_timeout - Timeout for inserts (defaults to 180 sec).

• execute_timeout - Timeout for execute (defaults to 180 sec).

• keepalive - TCP keep alive timeout in milliseconds.

• nodelay - Whether to enable TCP_NODELAY (defaults to true).

• pool_min - Lower bound of opened connections for Pool (defaults to 10).

• pool_max - Upper bound of opened connections for Pool (defaults to 20).

• ping_before_query - Ping server every time before execute any query. (defaults to true).

• send_retries - Count of retry to send request to server. (defaults to 3).

• retry_timeout - Amount of time to wait before next retry. (defaults to 5 sec).

• ping_timeout - Timeout for ping (defaults to 500 ms).

• alt_hosts - Comma separated list of single address host for load-balancing.

example:

tcp:https://user:password@host:9000/clicks?compression=lz4&ping_timeout=42ms

clickhouse-rs puts some functionality behind optional features to optimize compile time for the most common use cases. The following features are available.

• tokio_io (enabled by default) — I/O based on Tokio.
• async_std — I/O based on async-std (doesn't work together with tokio_io).
• tls — TLS support (allowed only with tokio_io).