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https://issues.apache.org/jira/browse/FLINK-7451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16127040#comment-16127040
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Timo Walther commented on FLINK-7451:
-------------------------------------
We had this issue recently on the ML. This should be fixed in Calcite's runtime
functions.
> Query fails when non-ascii characters are used in string literals
> -----------------------------------------------------------------
>
> Key: FLINK-7451
> URL: https://issues.apache.org/jira/browse/FLINK-7451
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Reporter: Jark Wu
> Assignee: Jark Wu
>
> I found that using non-ascii characters in string literals causes calcite
> planner to throw the following exception:
> {code}
> org.apache.calcite.runtime.CalciteException: Failed to encode '%测试%' in
> character set 'ISO-8859-1'
> {code}
> The query is
> {code}
> SELECT * FROM T WHERE f0 LIKE '%测试%'
> {code}
> The reason for the issue is that calcite uses latin encoding ('ISO-8859-1')
> by default. In order to pass non-latin characters we should use unicode
> encoding as default.
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