那些遇到过的问题

pgAdmin 在任何远程操作上都非常慢

Vla*_*lad 10 postgresql performance pgadmin postgresql-9.4 postgresql-performance

我从远程连接到我们的开发服务器的本地 pgAdmin 运行此查询：

select * from users order by random() limit 1;

它挂起17秒并显示

Total query runtime: 148 ms. 
1 row retrieved.
Run Code Online (Sandbox Code Playgroud)

它也挂在任何操作上：甚至右键单击表格。

之后我通过 RDP 连接并在相同的 pgAdmin 版本中运行相同的查询，该版本立即显示结果query time: 32 ms。

然后我再次从本地 pgAdmin 运行查询：

Total query runtime: 337 ms.
1 row retrieved.
Run Code Online (Sandbox Code Playgroud)

我对服务器的 ping 时间为 130 毫秒。连接速度应该足够了，因为我可以非常快地通过 FTP 上传文件。

使用本地 psql 运行时的相同查询在几秒钟内完成，包括连接时间。

我的本地 pgAdmin 中与我的本地数据库副本相同的查询也立即完成。

pgAdmin 版本是 1.20.0。也检查了最新的 1.22 - 仍然相同。

我可以做些什么来加速 pgAdmin？

请注意 psql 工作正常，我在那里没有看到相同的延迟。

17 秒查询运行的 pgAdmin 日志：

2016-02-06 16:18:03 INFO   : queueing : select * from users order by random() limit 1;
2016-02-06 16:18:03 QUERY  : Thread executing query (1:server): select * from users order by random() limit 1;
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:03 QUERY  : Query result: integer
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:03 QUERY  : Query result: 23
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:03 QUERY  : Query result: character varying(255)
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:03 QUERY  : Query result: 1043
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:03 QUERY  : Query result: character varying(255)
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:03 QUERY  : Query result: 1043
2016-02-06 16:18:03 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:04 QUERY  : Query result: integer
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:04 QUERY  : Query result: 23
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:04 QUERY  : Query result: integer
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:04 QUERY  : Query result: 23
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:04 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:04 QUERY  : Query result: 1114
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT format_type(oid,0) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:04 QUERY  : Query result: timestamp(0) without time zone
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:04 QUERY  : Query result: 1114
2016-02-06 16:18:04 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:05 QUERY  : Query result: integer
2016-02-06 16:18:05 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:06 QUERY  : Query result: 23
2016-02-06 16:18:06 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:06 QUERY  : Query result: integer
2016-02-06 16:18:06 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:06 QUERY  : Query result: 23
2016-02-06 16:18:06 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:07 QUERY  : Query result: integer
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:07 QUERY  : Query result: 23
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:07 QUERY  : Query result: boolean
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:07 QUERY  : Query result: 16
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 20
2016-02-06 16:18:07 QUERY  : Query result: bigint
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=20
2016-02-06 16:18:07 QUERY  : Query result: 20
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:07 QUERY  : Query result: character varying(255)
2016-02-06 16:18:07 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:08 QUERY  : Query result: 1043
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:08 QUERY  : Query result: character varying(255)
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:08 QUERY  : Query result: 1043
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:08 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:08 QUERY  : Query result: 1114
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:08 QUERY  : Query result: integer
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:08 QUERY  : Query result: 23
2016-02-06 16:18:08 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:09 QUERY  : Query result: integer
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:09 QUERY  : Query result: 23
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:09 QUERY  : Query result: boolean
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:09 QUERY  : Query result: 16
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:09 QUERY  : Query result: integer
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:09 QUERY  : Query result: 23
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:09 QUERY  : Query result: integer
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:09 QUERY  : Query result: 23
2016-02-06 16:18:09 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:10 QUERY  : Query result: boolean
2016-02-06 16:18:10 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:10 QUERY  : Query result: 16
2016-02-06 16:18:10 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:10 QUERY  : Query result: character varying(255)
2016-02-06 16:18:10 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:10 QUERY  : Query result: 1043
2016-02-06 16:18:11 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:11 QUERY  : Query result: character varying(255)
2016-02-06 16:18:11 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:11 QUERY  : Query result: 1043
2016-02-06 16:18:11 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:11 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:11 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:12 QUERY  : Query result: 1114
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:12 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:12 QUERY  : Query result: 1114
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:12 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:12 QUERY  : Query result: 1114
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:12 QUERY  : Query result: boolean
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:12 QUERY  : Query result: 16
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:12 QUERY  : Query result: integer
2016-02-06 16:18:12 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:13 QUERY  : Query result: 23
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:13 QUERY  : Query result: integer
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:13 QUERY  : Query result: 23
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:13 QUERY  : Query result: boolean
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:13 QUERY  : Query result: 16
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:13 QUERY  : Query result: integer
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:13 QUERY  : Query result: 23
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:13 QUERY  : Query result: integer
2016-02-06 16:18:13 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:14 QUERY  : Query result: 23
2016-02-06 16:18:14 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:14 QUERY  : Query result: boolean
2016-02-06 16:18:14 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:14 QUERY  : Query result: 16
2016-02-06 16:18:14 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:14 QUERY  : Query result: integer
2016-02-06 16:18:14 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:14 QUERY  : Query result: 23
2016-02-06 16:18:14 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:15 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:15 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:15 QUERY  : Query result: 1114
2016-02-06 16:18:15 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:15 QUERY  : Query result: integer
2016-02-06 16:18:15 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:16 QUERY  : Query result: 23
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:16 QUERY  : Query result: integer
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:16 QUERY  : Query result: 23
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:16 QUERY  : Query result: integer
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:16 QUERY  : Query result: 23
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:16 QUERY  : Query result: integer
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:16 QUERY  : Query result: 23
2016-02-06 16:18:16 QUERY  : Scalar query (server): SELECT format_type(oid,259) as typname FROM pg_type WHERE oid = 1043
2016-02-06 16:18:17 QUERY  : Query result: character varying(255)
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1043
2016-02-06 16:18:17 QUERY  : Query result: 1043
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:17 QUERY  : Query result: integer
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:17 QUERY  : Query result: 23
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:17 QUERY  : Query result: boolean
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:17 QUERY  : Query result: 16
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:17 QUERY  : Query result: integer
2016-02-06 16:18:17 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:18 QUERY  : Query result: 23
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:18 QUERY  : Query result: integer
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:18 QUERY  : Query result: 23
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:18 QUERY  : Query result: integer
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:18 QUERY  : Query result: 23
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:18 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:18 QUERY  : Query result: 1114
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 23
2016-02-06 16:18:18 QUERY  : Query result: integer
2016-02-06 16:18:18 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=23
2016-02-06 16:18:19 QUERY  : Query result: 23
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:19 QUERY  : Query result: boolean
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:19 QUERY  : Query result: 16
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:19 QUERY  : Query result: boolean
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=16
2016-02-06 16:18:19 QUERY  : Query result: 16
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:19 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetype END AS basetype
  FROM pg_type WHERE oid=1114
2016-02-06 16:18:19 QUERY  : Query result: 1114
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 20
2016-02-06 16:18:19 QUERY  : Query result: bigint
2016-02-06 16:18:19 QUERY  : Scalar query (server): SELECT CASE WHEN typbasetype=0 THEN oid else typbasetyp

Dan*_*ité 6

摘录pgadmin.log显示，对于结果的每个输出列，pgadmin对目录执行两个查询，一个从其oid中获取类型的格式化名称，另一个获取潜在的基类型。

在您的摘录中，如果我数数正确，此类查询的总数似乎是106.

从 的 ping 时间148 ms，我们假设往返服务器的最短时间为148 ms。所以这组查询所用的最短时间是148 x 106 = 15688 ms，或15.6 s

另一方面，命令行psql客户端不执行任何这些查询，因此可以预期它至少比15.6pgadmin 早几秒钟完成。

我不知道 pgadmin 中有任何选项可以禁用它，您可能想询问开发人员或检查您是否有最新版本，但去年在邮件列表中提出了与您类似的问题，显然没有回复：

长查询结果呈现（在 pgadmin-support 档案中）。

这是 pgAdmin 中令人失望的实现细节。它可以通过单个查询获得所有结果，在IN(...)构造或数组中传递类型 OID 的列表。它还可以缓存这些结果，甚至不会重复查询它已经看到的 OID。

归档时间：

查看次数：

8195 次

最近记录：

9 年，6 月 前
相关归档
如何在不停止服务器的情况下删除与特定数据库的所有连接？ 77
PostgreSQL“提供”PHP 是什么意思？ 8
使两列双向唯一 6
在不确定性下管理 CTE 执行顺序 5
postgres \copy 文件到 RDS 超时 5
电子商务产品数据库协会 5
在没有扩展的 PostgreSQL 中查找臃肿的表和索引 4
如何将当前行传递给 Postgres 中的生成列函数？ 4
避免重复而不创建视图 3
Postgres 列限制 2
难疑归档
如何完全禁用 MySQL 复制 76
Mongodump：无法识别的字段“快照” 71
关于单线程与多线程数据库性能 63
是否可以在 .my.cnf 中为每个数据库或每个主机配置密码 58
消除 ListAgg (Oracle) 中的重复项 48
用计数运行总计？ 34
是否可以将一列设为只读？ 31
如何在 MySQL 中设置多个字段作为主键？ 30
何时使用 CDC 跟踪历史？ 27
查询以输出查询、表或视图的列名和数据类型 26