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https://issues.apache.org/jira/browse/FLINK-16823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17071511#comment-17071511
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Zhenghua Gao commented on FLINK-16823:
--------------------------------------
After talk with [~danny0405], we decide to introduce addMonths/subtractMonths
as a temporary solution on Flink side to fix this corner case before
CALCITE-3881 is fixed.
> The functioin TIMESTAMPDIFF doesn't perform expected result
> -----------------------------------------------------------
>
> Key: FLINK-16823
> URL: https://issues.apache.org/jira/browse/FLINK-16823
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.9.1, 1.10.0
> Reporter: Adam N D DENG
> Assignee: Zhenghua Gao
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2020-03-27-13-50-51-955.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> For example,
> In mysql bellow sql get result 6, but in flink the output is 5
> SELECT timestampdiff (MONTH, TIMESTAMP '2019-09-01 00:00:00',TIMESTAMP
> '2020-03-01 00:00:00' )
>
> !image-2020-03-27-13-50-51-955.png!
>
>
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