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From "Andreas Korneliussen (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1421) ResultSet.updateBinaryStream fails when the result type is TYPE_SCROLL_INSENSITIVE
Date Tue, 27 Jun 2006 09:31:31 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1421?page=comments#action_12417988 ] 

Andreas Korneliussen commented on DERBY-1421:
---------------------------------------------

The patch looks good, however I have one issue which should be discussed/clarified:

The patch makes use of an impl class (import org.apache.derby.impl.store.raw.data.RememberBytesInputStream)
. I have not seen any other classes in the package org.apache.derby.iapi.types, make use of
impl classes, so I am not sure if it breaks some design-rule in derby. In this case, it could
probably be ok, since we are not exposing the impl class to the client, only using it in the
implementation of a class.

Another question is if we could avoid the cloning of the column somehow or if it is possible
to use a shallow clone? As far as I can tell, the current cloning will do an inmemory copy
of all data in the blob column, and if it is a 1GB blob, I think it will cause an OutOfMemory
error.

> ResultSet.updateBinaryStream fails when the result type is TYPE_SCROLL_INSENSITIVE
> ----------------------------------------------------------------------------------
>
>          Key: DERBY-1421
>          URL: http://issues.apache.org/jira/browse/DERBY-1421
>      Project: Derby
>         Type: Bug

>   Components: JDBC
>     Versions: 10.2.0.0
>     Reporter: V.Narayanan
>     Assignee: Fernanda Pizzorno
>  Attachments: TestUpdateBinaryStream.java, derby-1421.diff, derby-1421.stat
>
> Attaching test program for the above bug. The program however works fine when the ResultSetType
is TYPE_FORWARD_ONLY.

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