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Posted to issues-all@impala.apache.org by "Kris Hahn (Jira)" <ji...@apache.org> on 2020/04/10 00:20:00 UTC
[jira] [Created] (IMPALA-9640) [DOC]: Document Impala support for
Kudu VARCHAR type
Kris Hahn created IMPALA-9640:
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Summary: [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
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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