{
    "1": {
        "method": "changeColumn",
        "params": [
            "core_sys_cp_sessions",
            "session_app_data",
            {
                "name": "session_app_data",
                "type": "BLOB",
                "length": 0,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    },
    "2": {
        "method": "changeColumn",
        "params": [
            "core_sessions",
            "data",
            {
                "name": "data",
                "type": "BLOB",
                "length": 0,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    },
    "3": {
        "method": "createTable",
        "params": [
            {
                "name": "core_sitemap",
                "columns": {
                    "data": {
                        "name": "data",
                        "type": "MEDIUMTEXT",
                        "length": null,
                        "decimals": null,
                        "values": [],
                        "allow_null": false,
                        "default": null,
                        "comment": "The sitemap XML",
                        "unsigned": false,
                        "zerofill": false,
                        "auto_increment": false,
                        "binary": false
                    },
                    "updated": {
                        "name": "updated",
                        "type": "INT",
                        "length": 10,
                        "decimals": null,
                        "values": [],
                        "allow_null": false,
                        "default": null,
                        "comment": "Unix timestamp of last update",
                        "unsigned": false,
                        "zerofill": false,
                        "auto_increment": false,
                        "binary": false
                    },
                    "sitemap": {
                        "name": "sitemap",
                        "type": "VARCHAR",
                        "length": 255,
                        "decimals": null,
                        "values": [],
                        "allow_null": false,
                        "default": null,
                        "comment": "The sitemap key",
                        "unsigned": false,
                        "zerofill": false,
                        "auto_increment": false,
                        "binary": false
                    }
                },
                "indexes": {
                    "PRIMARY": {
                        "type": "primary",
                        "name": "PRIMARY",
                        "columns": [
                            "sitemap"
                        ],
                        "length": [
                            250
                        ]
                    }
                }
            }
        ]
    },
    "4": {
        "method": "addColumn",
        "params": [
            "core_notifications",
            {
                "name": "extra",
                "type": "TEXT",
                "length": null,
                "decimals": null,
                "values": [],
                "allow_null": true,
                "default": null,
                "comment": "JSON-encoded additional data",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}