10月25號之後只能對evap資料庫進行select操作，且執行報錯如下：

org.postgresql.util.PSQLException: 
ERROR: pooler: failed to create connections in parallel mode for thread 140705041217280 
在位置：SQL statement 
"EXECUTE DIRECT ON (cn_5002) 'SELECT pg_catalog.pg_try_advisory_xact_lock_shared(65535, 65535)'"

查詢使用者線許可權：

 查詢表許可權：

select * from INFORMATION_SCHEMA.role_table_grants where table_catalog='evap' and table_name='z_area_monitor_qygn12' and table_schema='public';

select * from INFORMATION_SCHEMA.role_table_grants where grantee='admin';

檢視鎖，無問題：

解決辦法：gsql登入時換用66.30，埠不變，操作恢復正常 

參考文章：https://sourceforge.net/p/postgres-xc/mailman/message/32086357/

https://www.oschina.net/translate/postgresql-locking-revealed    PostgreSQL 鎖解密

https://yq.aliyun.com/ask/184?order=ctimepg中關於AccessShareLock和ExclusiveLock的問題

https://blog.csdn.net/cdnight/article/details/84452012【pg資料庫】表鎖 行鎖 隔離級別及xmin xmax等系統行含義

https://blog.csdn.net/constzl/article/details/79206887AntDB重分佈流程記錄