From: | Ivano Luberti <luberti(at)archicoop(dot)it> |
---|---|
To: | |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: JDBC addBatch more efficient? |
Date: | 2008-04-21 15:11:18 |
Message-ID: | 480CAE96.6010503@archicoop.it |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Does this means that the two features are independent one from each other ?
In other words, can we say that JDBC batch will limit information
exchange between client and server while Postgres prepared statements
will optimize their execution ?
Kris Jurka ha scritto:
>
>
> On Sun, 20 Apr 2008, David Wall wrote:
>
>> Just checking if the JDBC library's batch processing code is more
>> efficient with respect to the postgresql back end or not. Does it
>> really batch the requests and submit them once over the link, or does
>> it just send them to the database to be processed one at a time?
>>
>
> The JDBC driver's batch processing is more efficient than regular
> execution because it requires fewer network roundtrips so there's less
> waiting. The JDBC batch is broken into an internal batch size of 256
> statement and all of these are sent over to the server at once.
>
> Kris Jurka
>
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