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https://issues.apache.org/jira/browse/CALCITE-6780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17913056#comment-17913056
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Julian Hyde commented on CALCITE-6780:
--------------------------------------
If it's a bug in the testing framework, change the summary to make the testing
framework, not the trim function, the subject of the sentence.
> Trim function failed in SqlOperatorTest when the expression is TRIM(string)
> ---------------------------------------------------------------------------
>
> Key: CALCITE-6780
> URL: https://issues.apache.org/jira/browse/CALCITE-6780
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.38.0
> Reporter: ZheHu
> Assignee: ZheHu
> Priority: Minor
>
> When running the following test in SqlOperatorTest,
> {code:java}
> f.checkString("trim(' aAa ')", "aAa", "VARCHAR(5) NOT NULL");
> {code}
> it throws "java.lang.StringIndexOutOfBoundsException: begin 8, end 21, length
> 17", which comes from buildQuery2() in AbstractSqlTester.
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