path: root/yql/essentials/tests/sql/suites/optimizers/opt_key.txt.attr

{"_yql_row_spec"={
    "Type"=["StructType";[
        ["key";[OptionalType;["DataType";"String"]]];
        ["subkey";["DataType";"String"]];
        ["value";["DataType";"String"]]
    ]];
}}