A group window expects a time attribute for grouping in a stream environment.THANKS for your help

[Appleyuchi]

my code is:

https://paste.ubuntu.com/p/gVGrj2V7ZF/

it complains

A group window expects a time attribute for grouping in a stream environment.

but the data already as time attribute,

How to fix it?

Thanks for your help.

 

[Xingbo Huang]

Hi,

Your code does not show how to create the Table of `Orders`. For how to specify the time attribute according to DDL, you can refer to the official document[1].


[1] https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/sql/create.html

Best,
Xingbo

Appleyuchi <[hidden email]> 于2020年12月9日周三 下午12:42写道：

my code is:

https://paste.ubuntu.com/p/gVGrj2V7ZF/

it complains

A group window expects a time attribute for grouping in a stream environment.

but the data already as time attribute,

How to fix it?

Thanks for your help.