use postgres;
DROP DATABASE testdb;
SELECT pg_terminate_backend(pg_stat_activity.pid)
 FROM pg_stat_activity
 WHERE datname='testdb' AND pid<>pg_backend_pid();
  三条语句一起上,不好意思上面的语句写反了
 
 SELECT pg_terminate_backend(pg_stat_activity.pid)
 FROM pg_stat_activity
 WHERE datname='tids_submit_data_line' AND pid<>pg_backend_pid(); DROP DATABASE tids_submit_data_line;