Function duckdb_create_map_type 

pub unsafe extern "C" fn duckdb_create_map_type(
    key_type: duckdb_logical_type,
    value_type: duckdb_logical_type,
) -> duckdb_logical_type

Creates a MAP type from its key type and value type. The return type must be destroyed with duckdb_destroy_logical_type.

history:

• stable: v0.4.0

@param key_type The map’s key type. @param value_type The map’s value type. @return duckdb_logical_type