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【TiDB 版本】4.0.8
dm 2.0
【问题描述】
mysql 建表sql： CREATE TABLE make_model_super202 (
id int(11) GENERATED ALWAYS AS (json_unquote(json_extract(ext,’$.id’))) STORED NOT NULL,
name varchar(40) GENERATED ALWAYS AS (trim(json_unquote(json_extract(ext,’$.name’)))) STORED NOT NULL,
network varchar(10) GENERATED ALWAYS AS (json_unquote(json_extract(ext,’$.wangluo’))) VIRTUAL NOT NULL,
make varchar(150) GENERATED ALWAYS AS (json_unquote(json_extract(ext,’$.pinpai’))) STORED NOT NULL,
model varchar(150) GENERATED ALWAYS AS (json_unquote(json_extract(ext,’$.jixing’))) STORED NOT NULL,
crdate datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
ts timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
ext text NOT NULL,
PRIMARY KEY (id),
KEY crdate (crdate),
KEY ts (ts)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
通过dm 同步到tidb,好像有问题，手动在tidb上执行上述sql；
然后从mysql插入，一条数据，同步依然报错，信息如下：
“Message”: “startLocation: [position: (db165.182183, 533850403), gtid-set: ], endLocation: [position: (db165.182183, 533850712), gtid-set: ]: gen insert sqls failed, schema: ex_public, table: make_model_super202: Column count doesn’t match value count: 4 (columns) vs 8 (values)”,
另外，在上述sql上将ext 类型换成json的话，navicate打开表时只显示7个列，并不是8个，我们是先用的json，json同步报错，才变成的text,修改后navicate显示的是8列
插入数据sql如下： INSERT INTO make_model_super202 VALUES (1, ‘dd’, ‘333’, ‘a’, ‘3444’, ‘2021-1-27 20:51:44’, ‘2021-1-27 20:51:44’, ‘{“id”: 1, “pinpai”: “a”, “name”: “dd”, “wangluo”: “333”, “jixing”: “3444”, “lianjie”: “”, “beizhu”: “”, “tijiao_name”: “”, “shenhe_name”: “”, “shenhe”: 0, “time”: “2020-10-15 03:45:29”, “create_time”: null, “update_time”: null, “delete_time”: 0 }’);
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