PostgreSQL修改库名

修改数据库名

alter  database  db1  rename  to  db2;

处理时常见错误如下：

ERROR:  database "db1" is being accessed by other users
DETAIL:  There are 17 other sessions using the database.

 处理办法：

 SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity WHERE datname='db1' AND pid<>pg_backend_pid();
-- 再次修改
 alter database db1 rename to db2;