Re: Confused by 'timing' results
От | Willy-Bas Loos |
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Тема | Re: Confused by 'timing' results |
Дата | |
Msg-id | AANLkTi=NhxV-Y0isfDuQwO_hBDDutDwo-f=N00YdeTzw@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Confused by 'timing' results ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>) |
Список | pgsql-admin |
>> time echo '\timing \\select * from table1 where id = 123;' | psql >> In the above query. the 'timing' will time the database time and >> the 'time' command at the very start will time the complete time >> for the query including network time. > > No, the 'timing' will say how long it took to send the query from > psql to the server and get the complete response back from the > server. The 'time' command will also include the time to start > psql, establish the connection to the database, read from the pipe, > and close the connection to the database. if you'd want to get the real execution time for the query from a faraway client (without network latency), you could open an ssh session and start psql on the database server. -- "Patriotism is the conviction that your country is superior to all others because you were born in it." -- George Bernard Shaw
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