RE: [INTERFACES] JDBC Query performance
От | Peter Mount |
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Тема | RE: [INTERFACES] JDBC Query performance |
Дата | |
Msg-id | A9DCBD548069D211924000C00D001C4419B72F@exchange.maidstone.gov.uk обсуждение исходный текст |
Список | pgsql-interfaces |
Hmmm, this is interesting. Does the cpu time match when the same queries are run through PSQL? Peter -- Peter T Mount, IT Section petermount@it.maidstone.gov.uk Anything I write here are my own views, and cannot be taken as the official words of Maidstone Borough Council -----Original Message----- From: Postgres mailing lists [mailto:postgres@weblynk.com] Sent: Sunday, March 21, 1999 7:11 PM To: pgsql-interfaces@postgreSQL.org Subject: Re: [INTERFACES] JDBC Query performance >At 11:07 +0200 on 18/03/1999, Peter Mount wrote: > > >> >> The delay is because the driver currently retrieves the entire result >> into a Vector() before returning the ResultSet. > >Couldn't it also be because of Java's usage of network sockets compared to >psql's use of unix sockets? > You know, I also noticed that it is the postgres back-end process which is using all the CPU time during the query. Doesn't sound like Vector operations to me, which should cause the java process to eat all the CPU time. Rich.
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