pgAdmin est extrêmement lent sur toute opération à distance

10

J'exécute cette requête depuis mon pgAdmin local se connectant à distance à notre serveur de développement:

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

il se bloque pendant 17 secondes et montre

Total query runtime: 148 ms. 
1 row retrieved.

il se bloque également sur n'importe quelle opération: même clic droit sur une table.

Ensuite, je me connecte via RDP et y exécute la même requête dans la même version de pgAdmin qui affiche immédiatement les résultats avec query time: 32 ms.

Ensuite, je lance à nouveau la requête de mon pgAdmin local:

Total query runtime: 337 ms.
1 row retrieved.

J'ai ping 130 ms sur le serveur. La vitesse de connexion devrait être plus que suffisante car je peux y télécharger des fichiers via FTP assez rapidement.

La même requête exécutée avec mon psql local se termine en quelques secondes avec le temps de connexion inclus.

La même requête dans mon pgAdmin local avec ma copie db locale se termine également immédiatement.

La version pgAdmin est 1.20.0. Vérifié également sur la dernière version 1.22 - toujours la même.

Que puis-je faire pour accélérer pgAdmin?

Veuillez noter que psql fonctionne bien, je n'y vois pas les mêmes latences.

Journal pgAdmin pendant 17 secondes d'exécution de la requête:

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 typbasetype END AS basetype
  FROM pg_type WHERE oid=20
2016-02-06 16:18:20 QUERY  : Query result: 20
2016-02-06 16:18:20 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 16
2016-02-06 16:18:20 QUERY  : Query result: boolean
2016-02-06 16:18:20 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 16:18:20 QUERY  : Query result: 16
2016-02-06 16:18:20 QUERY  : Scalar query (server): SELECT format_type(oid,-1) as typname FROM pg_type WHERE oid = 1114
2016-02-06 16:18:20 QUERY  : Query result: timestamp without time zone
2016-02-06 16:18:20 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 16:18:20 QUERY  : Query result: 1114
postgresql  postgresql-9.4  postgresql-performance  pgadmin 
— Vlad
source
Est-ce que ça pend toujours?
— dezso
@dezso chaque fois que j'appuie sur F5 pour relancer la requête. est-ce suffisant pour "toujours"?
— Vlad

Réponses:

6

L'extrait de pgadmin.logmontre que pour chaque colonne de sortie du résultat, pgadminexécute deux requêtes sur le catalogue, une pour obtenir le nom formaté du type à partir de son oid, une autre pour obtenir un type de base potentiel.

Dans votre extrait, si je compte bien, le nombre total de ces requêtes semble être 106.

À partir de l'heure de ping de 148 ms, supposons que le temps minimum pour un aller-retour vers le serveur soit 148 ms. Ainsi, le temps minimum pris par cet ensemble de requêtes serait 148 x 106 = 15688 ms, ou15.6 s

D'un autre côté, le psqlclient de ligne de commande ne fait aucune de ces requêtes, donc on peut s'attendre à ce qu'il se soit terminé au moins 15.6quelques secondes avant pgadmin.

Je ne connais aucune option dans pgadmin pour désactiver cela, vous voudrez peut-être demander aux développeurs ou vérifier si vous avez la dernière version, mais une question similaire à la vôtre a été posée l'année dernière sur la liste de diffusion, et n'a apparemment pas eu de réponse. réponse:

Rendu des résultats des requêtes longues (dans les archives de pgadmin-support).

C'est un détail d'implémentation décevant dans pgAdmin. Il pourrait obtenir tous les résultats via une seule requête, avec la liste des types OID passés dans une IN(...)construction ou un tableau. Il pourrait également mettre en cache ces résultats et même ne pas répéter les requêtes sur les OID qu'il a déjà vues.

— Daniel Vérité
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