Module utils 

Helpers for bridging between ClickHouse, DataFusion, and clickhouse_arrow.

Structs

ClientOptionParams

Wrapper for serialized client options

Enums

ClientOption

Wrapper for serialized client options that impls std::fmt::Display and ensures secrets are not logged or deserialized in plain text.

Functions

create_database

Create a database in the remote ClickHouse instance.

create_options_to_params

crate::ClickHouseTableProviderFactory must receive all parameters as strings, this function is helpful to serialize the required options

create_schema

Create a table in the remote ClickHouse instance.

map_clickhouse_err

Helper to map ClickhouseNativeError to DataFusionError

map_external_err

Helper to map any std::error::Error to DataFusionError

params_to_create_options

Creates a CreateOptions from ‘params’ (HashMap<String, String>) and ‘defaults’ (HashMap<String, Expr>).

params_to_pool_builder

Converts a HashMap of parameters to an ArrowConnectionPoolBuilder.

pool_builder_to_params

crate::ClickHouseTableProviderFactory must receive all parameters as strings, this function is helpful to serialize the required options

register_builtins

Helper function to register built-in functions in a session context.