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https://issues.apache.org/jira/browse/SPARK-28382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17003457#comment-17003457
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Kent Yao edited comment on SPARK-28382 at 12/26/19 3:54 AM:
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Ping [~hyukjin.kwon] I closed my pull PR, but I'm not the creator of this
ticket. I'd leave this to you. thanks. FYI, the unnest implementation in my pr
is based on Postgres but the unnest seems different from systems to systems.
was (Author: qin yao):
Ping [~hyukjin.kwon] I closed my pull PR, but I'm not the creator of this
ticket. I'd leave this to you. thanks. FYI, the unnest implementation is based
on Postgres but the unnest seems different from systems to systems.
> Array Functions: unnest
> -----------------------
>
> Key: SPARK-28382
> URL: https://issues.apache.org/jira/browse/SPARK-28382
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuming Wang
> Priority: Major
>
> ||Function||Return Type||Description||Example||Result||
> |{{unnest}}({{anyarray}})|set of anyelement|expand an array to a set of
> rows|unnest(ARRAY[1,2])|1
> 2
> (2 rows)|
>
> https://www.postgresql.org/docs/11/functions-array.html
>
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