{
    "1": {
        "method": "dropColumn",
        "params": [
            "core_achievements_log",
            "rule_id"
        ]
    },
    "2": {
        "method": "createTable",
        "params": [
            {
                "name": "core_achievements_log_milestones",
                "columns": {
                    "milestone_id": {
                        "allow_null": false,
                        "auto_increment": true,
                        "comment": "",
                        "decimals": null,
                        "default": null,
                        "length": 20,
                        "name": "milestone_id",
                        "type": "BIGINT",
                        "unsigned": true,
                        "values": []
                    },
                    "milestone_member_id": {
                        "allow_null": false,
                        "auto_increment": false,
                        "comment": "",
                        "decimals": null,
                        "default": null,
                        "length": 20,
                        "name": "milestone_member_id",
                        "type": "BIGINT",
                        "unsigned": true,
                        "values": []
                    },
                    "milestone_rule": {
                        "allow_null": false,
                        "auto_increment": false,
                        "comment": "",
                        "decimals": null,
                        "default": null,
                        "length": 10,
                        "name": "milestone_rule",
                        "type": "INT",
                        "unsigned": true,
                        "values": []
                    },
                    "milestone_log_id": {
                        "allow_null": false,
                        "auto_increment": false,
                        "comment": "",
                        "decimals": null,
                        "default": null,
                        "length": 20,
                        "name": "milestone_log_id",
                        "type": "BIGINT",
                        "unsigned": true,
                        "values": []
                    }
                },
                "indexes": {
                    "PRIMARY": {
                        "type": "primary",
                        "name": "PRIMARY",
                        "length": [
                            null
                        ],
                        "columns": [
                            "milestone_id"
                        ]
                    },
                    "lookup": {
                        "type": "unique",
                        "name": "lookup",
                        "columns": [
                            "milestone_member_id",
                            "milestone_rule"
                        ],
                        "length": [
                            null,
                            null
                        ]
                    }
                },
                "collation": "utf8_general_ci",
                "engine": "InnoDB"
            }
        ]
    }
}