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https://issues.apache.org/jira/browse/CALCITE-3589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16994270#comment-16994270
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Jin Xing commented on CALCITE-3589:
-----------------------------------
In the case given by [~bingfeng], I think Calcite throws the validation error
by intention (not a bug). Because property of isGroupByAlias in LENIENT
conformance is *_true._* Thus it turns out that the project column cannot be
found in grouping columns
> SqlValidatorException when conformation is set to LENIENT
> ---------------------------------------------------------
>
> Key: CALCITE-3589
> URL: https://issues.apache.org/jira/browse/CALCITE-3589
> Project: Calcite
> Issue Type: Bug
> Reporter: bingfeng.guo
> Priority: Critical
>
> {color:#172b4d}When conformance is set to LENIENT, and the alias of the
> select expression is the same as the table name in the expression, and the
> expression appears in group by, a SqlValidatorException will occur。{color}
> {color:#172b4d}a simple example is as follows：{color}
> {color:#ff8b00}SELECT MY_ID + 1 AS MY_ID, sum(PRICE){color}
> {color:#ff8b00}FROM tableA{color}
> {color:#ff8b00}GROUP BY MY_ID + 1{color}
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