currval of sequence "follow_id_seq" is not yet defined in this session
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postgresql上使用
查阅参考资料,发现错误原因是要查当前值,必须先取一次next:执行以下语句,执行成功:
http://sunboyyyl.blog.163.com/blog/static/224738120099135521859/
select currval('follow_id_seq');
报错:
currval of sequence "follow_id_seq" is not yet defined in this session
查阅参考资料,发现错误原因是要查当前值,必须先取一次next:执行以下语句,执行成功:
dbname=# select nextval('follow_id_seq'); nextval --------- 5347(1 row)dbname=# select currval('follow_id_seq'); currval --------- 5347(1 row)
http://sunboyyyl.blog.163.com/blog/static/224738120099135521859/
0 0
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