{
    "1": {
        "method": "changeColumn",
        "params": [
            "nexus_transactions",
            "t_amount",
            {
                "name": "t_amount",
                "type": "DECIMAL",
                "length": 20,
                "decimals": 2,
                "values": [],
                "allow_null": false,
                "default": "0",
                "comment": "",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}