Re: Anyone have example C code for Asynchronous Command Processing?
От | Tony and Bryn Reina |
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Тема | Re: Anyone have example C code for Asynchronous Command Processing? |
Дата | |
Msg-id | BAY8-DAV44hJTANZwwP0001cda4@hotmail.com обсуждение исходный текст |
Ответ на | Anyone have example C code for Asynchronous Command Processing? (reina_ga@hotmail.com (Tony Reina)) |
Список | pgsql-novice |
Thanks Tom. I'll stick with reforming things using a batch COPY command. -Tony ----- Original Message ----- From: "Tom Lane" <tgl@sss.pgh.pa.us> To: "Tony and Bryn Reina" <reina_ga@hotmail.com> Cc: <pgsql-novice@postgresql.org> Sent: Tuesday, March 09, 2004 4:05 PM Subject: Re: [NOVICE] Anyone have example C code for Asynchronous Command Processing? > "Tony and Bryn Reina" <reina_ga@hotmail.com> writes: > > Would the 2 connections execute > > faster than running the 2 commands serial over the same connection? > > Perhaps, but you'd get much more win out of batching multiple inserts > into one COPY. The overhead of parsing an INSERT command is relatively > high compared to what it actually gets done. Running two in parallel > does nothing to improve the overhead situation; and if you are after > speed, cutting the overhead is where you *must* focus your attention. > (If you just gotta have the sex appeal of parallelism, try running two > COPY operations in parallel...) > > regards, tom lane >
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