语法格式1：有则更新，无则插入
insert into table_1(column_1,column_2, column_3)
select column_1,column_2,column_3,from table_2on conflict (column_1)do update setcolumn_2 = excluded.column_2,column_3 = excluded.column_3如：
insert into ua_cj_assess_result(id,all_analysis)
select id,(lte_health_assess+nr_health_assess)/2 as all_analysisfrom ua_cj_assess_result aon conflict (id)do update setall_analysis = excluded.all_analysis
语法格式2：有则不操作，无则插入
insert into table_1(column_1,column_2, column_3)
select column_1,column_2,column_3from table_2on conflict (column_1)do nothing
注意事项：
1、conflict 里的字段必须是主键
2、关联字段必须在表中字段顺序的第一个位置
3、select出来的字段名称必须和目标表中的字段名称一致
