parent relation column can't be updated LESSON_EXTENDED_ATTRIBUTE->LESSON_ID时间:2023-03-10 01:33:10 MyCat 中 作为分片的主键不允许更新 , 需要设置为null,调用updateSelectiveByPrimaryKey来更新数据 parent relation column can't be updated LESSON_EXTENDED_ATTRIBUTE->LESSON_ID