修改为指定值
DO $$DECLARE r record; BEGIN FOR r IN SELECT sequence_name FROM information_schema."sequences" LOOP EXECUTE 'ALTER SEQUENCE '|| r.sequence_name ||' restart WITH 10000'; END LOOP; END$$;
根据表的id修改
DO $$ DECLARE r record; start_value integer := 0; BEGIN FOR r IN SELECT tablename||'_id_seq' AS sequence_name, tablename FROM pg_tables WHERE schemaname = 'public' LOOP EXECUTE 'SELECT max(id)+1 AS max_value FROM ' || r.tablename INTO start_value; IF start_value IS NULL THEN start_value:= 1; END IF; RAISE NOTICE 'start_value % %', r.tablename,start_value; EXECUTE 'ALTER SEQUENCE '|| r.sequence_name ||' restart WITH ' || start_value; END LOOP; END$$;
补充：postgresql 13 数据库 sequence 的 maxvalue 最大值是多少"htmlcode">
那就需要查看下 bigint 的值 以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。
# cat /etc/centos-release
CentOS Linux release 7.8.2003 (Core)
# su - postgres
Last login: Thu Oct 15 09:59:33 CST 2020 on pts/1
ppostgres@nodepg13-> psql -c "select version();"
version
---------------------------------------------------------------------------------------------------------
PostgreSQL 13.0 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39), 64-bit
(1 row)
create sequence
$ psql
postgres=# create sequence seq_1;
CREATE SEQUENCE
postgres=# select c.relname,c.relkind,s.* from pg_class c,pg_sequence s where c.oid=s.seqrelid;
relname | relkind | seqrelid | seqtypid | seqstart | seqincrement | seqmax | seqmin | seqcache | seqcycle
---------+---------+----------+----------+----------+--------------+---------------------+--------+----------+----------
seq_1 | S | 40968 | 20 | 1 | 1 | 9223372036854775807 | 1 | 1 | f
(1 row)
seqmax = 9223372036854775807
maxvalue
NO MAXVALUE
The optional clause MAXVALUE maxvalue determines the maximum value for the sequence. If this clause is not supplied or NO MAXVALUE is specified, then default values will be used. The default for an ascending sequence is the maximum value of the data type. The default for a descending sequence is -1.
P70系列延期，华为新旗舰将在下月发布
3月20日消息，近期博主@数码闲聊站 透露，原定三月份发布的华为新旗舰P70系列延期发布，预计4月份上市。
而博主@定焦数码 爆料，华为的P70系列在定位上已经超过了Mate60，成为了重要的旗舰系列之一。它肩负着重返影像领域顶尖的使命。那么这次P70会带来哪些令人惊艳的创新呢？
根据目前爆料的消息来看，华为P70系列将推出三个版本，其中P70和P70 Pro采用了三角形的摄像头模组设计，而P70 Art则采用了与上一代P60 Art相似的不规则形状设计。这样的外观是否好看见仁见智，但辨识度绝对拉满。