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https://issues.apache.org/jira/browse/CALCITE-5113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17528602#comment-17528602
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Ruben Q L commented on CALCITE-5113:
------------------------------------
Thanks for the confirmation [~itxiangkui].
Regarding your last comment, according to Calcite doc
(https://calcite.apache.org/docs/reference.html#datetime-functions) WEEK
function only takes one parameter. It seems that internally the expression
{{select WEEK(date '2022-01-01')}} is converted into {{select EXTRACT(WEEK FROM
date '2022-01-01')}}, so maybe any extra parameter is just ignored in this
conversion.
> function week(date 'xxx') returns a different number than mysql
> ---------------------------------------------------------------
>
> Key: CALCITE-5113
> URL: https://issues.apache.org/jira/browse/CALCITE-5113
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.30.0
> Reporter: itxiangkui
> Priority: Major
>
> {code:java}
> mysql> select week(date '2022-01-01');
> +-------------------------+
> | week(date '2022-01-01') |
> +-------------------------+
> | 0 |
> +-------------------------+
> 1 row in set (0.01 sec)
> {code}
>
> {code:java}
> 0: jdbc:avatica:remote:url=http://xxxxx > select week(date '2022-01-01');
> +--------+
> | EXPR$0 |
> +--------+
> | 52 |
> +--------+ {code}
>
>
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