{
    "1": {
        "method": "addIndex",
        "params": [
            "core_notifications",
            {
                "type": "key",
                "name": "subitem_lookup",
                "columns": [
                    "item_sub_class",
                    "item_sub_id"
                ],
                "length": [
                    null,
                    null
                ]
            }
        ]
    },
    "2": {
        "method": "changeColumn",
        "params": [
            "core_sys_lang_words",
            "word_default",
            {
                "name": "word_default",
                "type": "MEDIUMTEXT",
                "length": 0,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "The default value",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}