Re: really quick multiple inserts can use COPY?
От
Andreas Kretschmer
Тема
Re: really quick multiple inserts can use COPY?
Дата
Msg-id
20061211165731.GA11970@KanotixBox
Ответ на
really quick multiple inserts can use COPY? (Jens Schipkowski)
Список
Дерево обсуждения
really quick multiple inserts can use COPY? "Jens Schipkowski" <jens.schipkowski@apus.co.at>
Re: really quick multiple inserts can use COPY? Tom Lane <tgl@sss.pgh.pa.us>
Re: really quick multiple inserts can use COPY? Andreas Kretschmer <akretschmer@spamfence.net>
Re: really quick multiple inserts can use COPY? imad <immaad@gmail.com>
Re: really quick multiple inserts can use COPY? Guillaume Cottenceau <gc@mnc.ch>
Re: really quick multiple inserts can use COPY? "Jens Schipkowski" <jens.schipkowski@apus.co.at>
Re: really quick multiple inserts can use COPY? nicky <nicky@valuecare.nl>
Re: really quick multiple inserts can use COPY? "Rajesh Kumar Mallah" <mallah.rajesh@gmail.com>
Jens Schipkowski schrieb: > Hello! > > In our JAVA application we do multiple inserts to a table by data from a > Hash Map. Due to poor database access implemention - done by another > company (we got the job to enhance the software) - we cannot use prepared > statements. (We are not allowed to change code at database access!) > First, we tried to fire one INSERT statement per record to insert. This > costs 3 ms per row which is to slow because normally we insert 10.000 > records which results in 30.000 ms just for inserts. Can you change this from INSERT-Statements to COPY? Copy is *much* faster than INSERT. If no, do you using all INSERTs in one transaction? I believe, a 'BEGIN' and a 'COMMIT' around all INSERTs may increase the speed. Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknow) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
В списке pgsql-performance по дате отправления