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https://issues.apache.org/jira/browse/CALCITE-6888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17939538#comment-17939538
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Zhen Chen commented on CALCITE-6888:
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[~nobigo] I have added some descriptions, please take a look.
> Doris dialect implementation
> ----------------------------
>
> Key: CALCITE-6888
> URL: https://issues.apache.org/jira/browse/CALCITE-6888
> Project: Calcite
> Issue Type: Improvement
> Reporter: Zhen Chen
> Assignee: Zhen Chen
> Priority: Major
> Labels: pull-request-available
>
> Do we need this implementation?
> Doris and Starrocks have quite different views on some functions, for example:
> from EXTRACT(SECOND FROM TIMESTAMP '2023-12-01 00:00:00') to EXTRACT(SECOND
> FROM '2023-12-01 00:00:00')
> from DATE_TRUNC('MINUTE', `hire_date`) to DATE_TRUNC(`hire_date`, 'MINUTE')
> from MAP \{ 'k1' : 'v1', 'k2' : 'v2' } to MAP ('k1', 'v1', 'k2', 'v2')
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