{
    "1": {
        "method": "dropColumn",
        "params": [
            "calendar_events",
            "event_comments_pending"
        ]
    },
    "2": {
        "method": "addColumn",
        "params": [
            "calendar_events",
            {
                "name": "event_queued_comments",
                "type": "INT",
                "length": 10,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": true,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    },
    "3": {
        "method": "addColumn",
        "params": [
            "calendar_events",
            {
                "name": "event_hidden_comments",
                "type": "INT",
                "length": 10,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": true,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    },
    "4": {
        "method": "addColumn",
        "params": [
            "calendar_events",
            {
                "name": "event_unapproved_reviews",
                "type": "INT",
                "length": 10,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": true,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    },
    "5": {
        "method": "addColumn",
        "params": [
            "calendar_events",
            {
                "name": "event_hidden_reviews",
                "type": "INT",
                "length": 0,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": true,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}