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https://issues.apache.org/jira/browse/CALCITE-6565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17879858#comment-17879858
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xiong duan commented on CALCITE-6565:
-------------------------------------
Fixed in
[15f4ef98618e|https://github.com/apache/calcite/commit/15f4ef98618e66e7e5cc70128dc0f7a7e6cb135c].
Thanks for the PR [~chengjie]. Thanks for the review [~mbudiu]. Please
remember to log a new Jira issue to describe the PR and make the commit info
consistent with [CALCITE-****].
> Invalid unparse for CHAR without precision in MssqlSqlDialect
> -------------------------------------------------------------
>
> Key: CALCITE-6565
> URL: https://issues.apache.org/jira/browse/CALCITE-6565
> Project: Calcite
> Issue Type: Improvement
> Affects Versions: 1.37.0
> Reporter: xiong duan
> Priority: Major
>
> Execute SQL :
> {code:java}
> select cast(product_id as char) from product
> {code}
> Expected Mssql SQL should be:
> {code:java}
> SELECT CAST([product_id] AS CHAR) FROM [foodmart].[product]
> {code}
> But is:
> {code:java}
> SELECT CAST([product_id] AS CHAR(1)) FROM [foodmart].[product]
> {code}
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