ydb/yt/yql/tests/sql/suites/join/gj_countries1.txt.attr

{
   "schema" = <
        "strict" = %true;
        "unique_keys" = %false
    >
    [
        {
            "name" = "country_id";
            "required" = %true;
            "type" = "string"
        };
        {
            "name" = "country_name";
            "required" = %true;
            "type" = "string"
        };
     ];
}