{
    "1": {
        "method": "addIndex",
        "params": [
            "ccs_database_comments",
            {
                "type": "key",
                "name": "comment_database_id",
                "columns": [
                    "comment_database_id",
                    "comment_record_id",
                    "comment_date"
                ]
            }
        ]
    },
    "2": {
        "method": "changeIndex",
        "params": [
            "ccs_database_comments",
            "map_database_id",
            {
                "type": "key",
                "name": "map_database_id",
                "columns": [
                    "map_database_id",
                    "map_record_id"
                ]
            }
        ]
    },
    "3": {
        "method": "addColumn",
        "params": [
            "ccs_database_fields",
            {
                "name": "field_truncate",
                "type": "mediumint",
                "length": 9,
                "allow_null": false,
                "default": 100
            }
        ]
    }
}