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https://issues.apache.org/jira/browse/DERBY-2496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Øystein Grøvlen updated DERBY-2496:
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Attachment: blob-followup_v2.diff
> Rick Hillegas commented on DERBY-2496:
> --------------------------------------
>
> Thanks for the changes, Øystein. I am afraid I'm having some
> trouble applying blob-followup.diff. My patch tool could not apply
> the changes in BlobLocatorInputStream. So I tried applying them by
> hand. I ended up with compile errors in Blob.java because:
Sorry about that. I do not understand how I got that to compile. I
have attached a new version of the patch, blob-followup_v2.diff where
I make sure to catch the SqlException. I also updated my sandbox, so
hopefully you will be able to apply this version.
> Implement Blob support for Locators
> -----------------------------------
>
> Key: DERBY-2496
> URL: https://issues.apache.org/jira/browse/DERBY-2496
> Project: Derby
> Issue Type: Sub-task
> Reporter: Øystein Grøvlen
> Assigned To: Øystein Grøvlen
> Attachments: blob-followup.diff, blob-followup_v2.diff, blob.diff,
> blob_v2.diff
>
>
> DERBY-2347 adds the possibility to send locators between client and server
> instead of LOB values. This has not been activated yet, since the client
> implementation does not currently support locators. This report is for
> supporting the locators for Blob objects. Another JIRA issue will be made
> for Clob.
> This work will be made in several steps:
> 1. Blob methods and ResultSet.getXXX methods
> 2. PreparedStatement and CallableStatement methods
> 3. ResultSet.updateXXX methods
> 4. Connection.createBlob()
> There is dependencies between these steps and it might be that the Locator
> implementation cannot be exposed until everything has been done. At least,
> doing just step 1, gives testing errors because tests use Blobs fetched from
> DB as parameters to prepared statements. I would guess tests for updatable
> result sets, needs the combination of 1. and 3.
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