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https://issues.apache.org/jira/browse/FLINK-33070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Feng Jin updated FLINK-33070:
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Description:
Row and column transformation is a commonly used approach. In Flink SQL, we can
use unnest for this purpose.
However, the usage and support of unnest are not explained in the documentation.
I think we can at least add it to the built-in functions section
([https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/#scalar-functions])
， or we can provide some examples.
was:
Row and column transformation is a commonly used approach. In Flink SQL, we can
use unnest for this purpose.
However, the usage and support of unnest are not explained in the documentation.
I think we can at least add it to the built-in functions section
(https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/#scalar-functions)
， or we provide some examples.
> Add doc for 'unnest'
> ---------------------
>
> Key: FLINK-33070
> URL: https://issues.apache.org/jira/browse/FLINK-33070
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Reporter: Feng Jin
> Priority: Major
>
> Row and column transformation is a commonly used approach. In Flink SQL, we
> can use unnest for this purpose.
> However, the usage and support of unnest are not explained in the
> documentation.
>
> I think we can at least add it to the built-in functions section
> ([https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/#scalar-functions])
> ， or we can provide some examples.
>
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