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https://issues.apache.org/jira/browse/DERBY-2694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anurag Shekhar updated DERBY-2694:
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Attachment: derby-2694-v3.diff
updated the code with Rick's snippet.
> org.apache.derby.impl.drda.DDMWriter uses wrong algorithm to avoid spliting
> varchar in the middle of a multibyte char.
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-2694
> URL: https://issues.apache.org/jira/browse/DERBY-2694
> Project: Derby
> Issue Type: Bug
> Components: Network Server
> Environment: all
> Reporter: Anurag Shekhar
> Assignee: Anurag Shekhar
> Fix For: 10.3.0.0
>
> Attachments: derby-2694-v2.diff, derby-2694-v3.diff, derby-2694.diff,
> TestProc.java, TestProc_TruncateRep.java
>
>
> org.apache.derby.impl.drda.DDMWriter uses wrong algorithm to avoid splitting
> varchar in the middle of a multibyte char.
> When DMWriter finds that it has to split a varchar while sending it to client
> it checks if the last byte is a part of a multibyte char and in case it is it
> tries to find the last byte of previous char and sends only till that byte
> leaving rest of it for the next send.
> The code it uses is having a bug so it fails when the last byte its checking
> for is the third byte of a char of 3 byte length.
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