{
    "1": {
        "method": "dropTable",
        "params": [
            "core_image_scanner_logs"
        ]
    },
    "2": {
        "method": "addIndex",
        "params": [
            "core_message_topics",
            {
                "type": "key",
                "name": "mt_alert",
                "columns": [
                    "mt_alert"
                ],
                "length": [
                    null
                ]
            }
        ]
    }
}