Re: NullPointerException when calling ResultSet.absolute(int) - Mailing list pgsql-jdbc

From Oliver Jowett
Subject Re: NullPointerException when calling ResultSet.absolute(int)
Date
Msg-id 43138AFC.20305@opencloud.com
Whole thread Raw
In response to Re: NullPointerException when calling ResultSet.absolute(int)  (Clemens Eisserer <linuxhippy@gmail.com>)
Responses Re: NullPointerException when calling ResultSet.absolute(int)  (Clemens Eisserer <linuxhippy@gmail.com>)
List pgsql-jdbc
Clemens Eisserer wrote:
> Hello Oliver and thanks a lot for answering,
>
>
>>Either you can use two queries, or use a scrollable ResultSet and call
>>ResultSet.last() / ResultSet.getRow(). The second approach causes the
>>entire ResultSet to be loaded into the Java heap, though, so it's not so
>>good for large results.
>
> Currently I use the last()/getRow approach but as you confirmed this
> approach does exactly what I don't want - to transfer the whole
> selection between server and client.
> Isn't there a workarround for this, maybe setting the fetch-size
> (default set to 0)?

Not with the current driver -- using a scrollable resultset disables use
of cursors, so the fetchsize is ignored.

-O

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