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https://issues.apache.org/jira/browse/FLINK-19328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17199737#comment-17199737
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Benchao Li commented on FLINK-19328:
------------------------------------
[~cellen] The document you are referencing is the blink on AliCloud, it's
different from the community Blink Planner.
You can reference the community doc here:
[https://ci.apache.org/projects/flink/flink-docs-master/]
> flink sql
> ---------
>
> Key: FLINK-19328
> URL: https://issues.apache.org/jira/browse/FLINK-19328
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.11.1
> Environment: jdk1.8
> flink1.11.1
>
> Reporter: cellen
> Priority: Minor
> Fix For: 1.11.3
>
> Attachments: image-2020-09-21-21-04-31-199.png
>
>
> h1. function CONCAT_AGG is disable.
> but there are manay help info about "CONCAT_AGG" function on alibaba website
> when I use
> !image-2020-09-21-21-04-31-199.png!
> will get error info
> "the concat_agg function is not found"
>
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