Обсуждение: setArray()

Hi,

I'd like to insert a large array of integers into the database (15000)
However I can't seem to get PreparedStatement.setArray() to work.

I saw a patch in the archives regarding this but I'm not in control of
the java installation which I'm using.

I'm currently converting my array into a string before inserting it
and using setString()... However this is *very* slow!

Any advice would be much appreciated,
Conor

On Mon, 12 Jan 2004, Conor Beverland wrote:

> Hi,
>
> I'd like to insert a large array of integers into the database (15000)
> However I can't seem to get PreparedStatement.setArray() to work.
>

At the moment there is no way for user code to instantiate an Array
object, so calling setArray will only work with an array you got from a
ResultSet.

> I saw a patch in the archives regarding this but I'm not in control of
> the java installation which I'm using.
>
> I'm currently converting my array into a string before inserting it
> and using setString()... However this is *very* slow!

Behind the scenes the driver would do the exact same thing, so even if you
could call setArray() it wouldn't help your performace problem.

Kris Jurka

I have the same issue, but my Array is much smaller. As you see downthread,
there is no practical way to use setArray().

As for speed: Are you using a StringBuffer allocated sufficiently large to
begin with, not a String? (My last line is

return new String(sbuffer);

HTH.

----- Original Message -----
From: "Conor Beverland" <cb801@doc.ic.ac.uk>
To: <pgsql-jdbc@postgresql.org>
Sent: Monday, January 12, 2004 6:40 AM
Subject: [JDBC] setArray()


> Hi,
>
> I'd like to insert a large array of integers into the database (15000)
> However I can't seem to get PreparedStatement.setArray() to work.
>
> I saw a patch in the archives regarding this but I'm not in control of
> the java installation which I'm using.
>
> I'm currently converting my array into a string before inserting it
> and using setString()... However this is *very* slow!
>
> Any advice would be much appreciated,
> Conor
>
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