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From Øystein Grøvlen (JIRA) <j...@apache.org>
Subject [jira] Updated: (DERBY-2496) Implement Blob support for Locators
Date Fri, 08 Jun 2007 11:47:26 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Øystein Grøvlen updated DERBY-2496:
-----------------------------------

    Derby Info: [Existing Application Impact]  (was: [Existing Application Impact, Release
Note Needed])

Will add release note to DERBY-208 instead.

> Implement Blob support for Locators
> -----------------------------------
>
>                 Key: DERBY-2496
>                 URL: https://issues.apache.org/jira/browse/DERBY-2496
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Network Client, Network Server
>            Reporter: Øystein Grøvlen
>            Assignee: Øystein Grøvlen
>             Fix For: 10.3.0.0
>
>         Attachments: blob-followup.diff, blob-followup_v2.diff, blob-followup_v2.diff,
blob.diff, blob_v2.diff, blobtestfix.diff, enableblobloc.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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