{
    "1": {
        "method": "addIndex",
        "params": [
            "gallery_comments",
            {
                "type": "key",
                "name": "comment_approved",
                "columns": [
                    "comment_approved"
                ],
                "length": [
                    null
                ]
            }
        ]
    },
    "2": {
        "method": "changeColumn",
        "params": [
            "gallery_images",
            "image_metadata",
            {
                "name": "image_metadata",
                "type": "MEDIUMTEXT",
                "length": 0,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}