//改变主键前要先删掉原先的主键
alter table tm_td_post_loan_monitoring_data_person_info drop PRIMARY KEY
alter table tm_td_post_loan_monitoring_data_person_info add primary key(id_number)
//改变主键前要先删掉原先的主键
alter table tm_td_post_loan_monitoring_data_person_info drop PRIMARY KEY
alter table tm_td_post_loan_monitoring_data_person_info add primary key(id_number)

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