{
    "_yql_row_spec"={
        "ColumnOrder"=["x";"x"];
        "NativeYtTypeFlags"=0u;
        "StrictSchema"= %true;
        "TypePatch"= [
            "StructType"; [
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                ["x_generated_2"; ["PgType";"int8"]];
            ]
        ]
    };
    "schema"=<
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        "unique_keys"=%false;
    >[
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            "name"= "x";
            "required"= %false;
            "type"= "int32";
            "type_v3"= {
                "item"= "int32";
                "type_name"= "optional";
            }
        };
        {
            "name"= "x_generated_2";
            "required"= %false;
            "type"= "int64";
            "type_v3"= {
                "item"= "int64";
                "type_name"= "optional";
            }
        };
    ]
}