pgsql 备注
用PostgreSQL操作符不等于<>时,还必须加上OR the_column IS NULL
创建序列语句如下:
CREATE SEQUENCE t_certificate_c_certificateid_seq
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
第二步,设置表字段自增sql
alter table t_certificate alter column c_certificateid set default nextval('t_certificate_c_certificateid_seq');
pgsql启动 :pg_ctl -D /usr/local/var/postgres/ -l /usr/local/var/postgres/server.log start

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