TypeORM-NestJs 在 Json 列加入

Question

加入两个 mysql table 使用 typeorm-NestJs 其中 table 1(t1) 是正常的 table & table 2(t2) 有一列包含 JSON 数据

现在我需要根据t1.id == t2.column_name.id

加入他们

但我在查询时遇到错误

我正在使用的查询：-

const results  = await this.connection.createQueryBuilder(ABCEntity,'t1')
    .innerJoinAndMapMany('t1.Id',xyzEntity,'t2','t1.Id = t2.column_name.$.Id')
    .where('t1.Id = :Id',{Id: id})
    .getMany()
    .catch(err => console.log(err));

我得到的错误：-

code: 'ER_PARSE_ERROR',
  errno: 1064,
  sqlMessage: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.Id WHERE `t1`.`Id` = 'b6D812aF-9e22-4a5a-a292-6rc5021bfv0a'' at line 1",
  sqlState: '42000',

Answer 1

对我有用的是，反引号中的所有内容例如：`t1.Id = t2.column_name->'$.Id'

const results  = await this.connection.createQueryBuilder(ABCEntity,'t1')
.innerJoinAndMapMany('t1.Id',xyzEntity,'t2',`t1.Id = t2.column_name->'$.Id'`)
.where('t1.Id = :Id',{Id: id})
.getMany()
.catch(err => console.log(err));

TypeORM-NestJs 在 Json 列加入

TypeORM-NestJs Join on Json column

mysql

inner-join

typescript

typeorm

nestjs