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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4686) SQLBinary.writeBlob is inefficient, reading one byte at a time from the source BLOB
Date Thu, 17 Jun 2010 15:27:25 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12879806#action_12879806
] 

Kristian Waagan commented on DERBY-4686:
----------------------------------------

Hi Yun,

It was Knut Anders who suggested the buffer size optimization, but in any case, you're welcome
:)
If possible, we also try to keep lines shorter than 80 characters, but that's a detail.

I committed patch DERBY-4686-2.diff to trunk with revision 955634.


Thanks,

> SQLBinary.writeBlob is inefficient, reading one byte at a time from the source BLOB
> -----------------------------------------------------------------------------------
>
>                 Key: DERBY-4686
>                 URL: https://issues.apache.org/jira/browse/DERBY-4686
>             Project: Derby
>          Issue Type: Improvement
>          Components: Store
>    Affects Versions: 10.7.0.0
>            Reporter: Kristian Waagan
>            Assignee: Yun Lee
>             Fix For: 10.7.0.0
>
>         Attachments: DERBY-4686-1.diff, DERBY-4686-1.diff, DERBY-4686-2.diff, DERBY-4686.diff
>
>
> SQLBinary.writeBlob is inefficient, since it is only reading one byte at the time from
the source BLOB.
> It would be better if a transfer buffer was used to facilitate the write.

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