{
    "schema" = <
        unique_keys = %true;
        strict = %true;
    > [
        {
            "name" = "hash";
            "type" = "uint64";
            "expression" = "farm_hash(key)";
            "sort_order" = "ascending";
        };
        {
            "name" = "key";
            "type" = "string";
            "sort_order" = "ascending";
        };
        {
            "name" = "kv_value";
            "type" = "int64";
        };
    ];
    "_yql_dynamic" = %true;
    "_yql_dynamic_native_read" = %true;
}