{
    "name": "Mail Query performance",
    "description": "Measures performance of mail queries",
    "columns": [
        { "name": "rows", "type": "int" },
        { "name": "simple", "type": "float", "unit": "result/ms" },
        { "name": "threadleader", "type": "float", "unit": "result/ms" }
    ]
}