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https://issues.apache.org/jira/browse/CALCITE-3351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16931072#comment-16931072
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Danny Chan commented on CALCITE-3351:
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The exception is thrown from avatica, and it seems that it is related with
CALCITE-2704, there is already a fix from [~vlsi][1].
[1] [https://github.com/apache/calcite-avatica/pull/85]
> calcite mysql utf8 throws exception in Chinese
> ----------------------------------------------
>
> Key: CALCITE-3351
> URL: https://issues.apache.org/jira/browse/CALCITE-3351
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.19.0
> Environment: Happened on both Windows and MacOS.
> Reporter: cui
> Priority: Major
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Exception was thrown when connecting with mySQL to query Chinese. The
> following SQL was executed:
> select * from \"test\".\"score_new\" where \"name\"= \'催\' limit 1
> ，if change "getDefaultCharset" in "RelDataTypeFactoryImpl" to
> return Charset.forName("UTF8");
> there will be also exception thrown as the following:
> java.sql.SQLException: Error while executing SQL "select * from
> "test"."score_new" where "name"= '催' limit 1": While executing SQL [SELECT
> *java.sql.SQLException: Error while executing SQL "select * from
> "test"."score_new" where "name"= '催' limit 1": While executing SQL [SELECT
> *FROM `score_new`WHERE `name` = u&'\50ac'LIMIT 1] on JDBC sub-schema at
> org.apache.calcite.avatica.Helper.createException(Helper.java:56) at
> org.apache.calcite.avatica.Helper.createException(Helper.java:41) at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:163)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:227)
> at QueryMysql.main(QueryMysql.java:42)Caused by: java.lang.RuntimeException:
> While executing SQL [SELECT *FROM `score_new`WHERE `name` = u&'\50ac'
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