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https://issues.apache.org/jira/browse/IMPALA-9640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kris Hahn closed IMPALA-9640.
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> [DOC]: Document Impala support for Kudu VARCHAR type
> ----------------------------------------------------
>
> Key: IMPALA-9640
> URL: https://issues.apache.org/jira/browse/IMPALA-9640
> Project: IMPALA
> Issue Type: Documentation
> Components: Docs
> Affects Versions: Not Applicable
> Reporter: Kris Hahn
> Assignee: Kris Hahn
> Priority: Major
> Labels: docs
> Fix For: Not Applicable
>
>
> See Impala-5092. The length of a Kudu varchar is applied as a character
> length as opposed to a byte length which Impala currently uses. Kudu tuples
> containing VARCHAR columns use characters instead of bytes to limit the
> length. In the case of ASCII values there is no difference. However, if
> multi-byte characters are written to Kudu the length could be longer than
> allowed.
> Impala checks the actual length and truncates the length of the value if
> necessary.
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