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https://issues.apache.org/jira/browse/SPARK-29187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-29187:
--------------------------------
Parent Issue: SPARK-31415 (was: SPARK-30375)
> Return null from `date_part()` for the null `field`
> ---------------------------------------------------
>
> Key: SPARK-29187
> URL: https://issues.apache.org/jira/browse/SPARK-29187
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Minor
> Fix For: 3.0.0
>
>
> PostgreSQL return NULL for the NULL field from the date_part() function:
> {code}
> maxim=# select date_part(null, date'2019-09-20');
> date_part
> -----------
>
> (1 row)
> {code}
> but Spark fails with the error:
> {code}
> spark-sql> select date_part(null, date'2019-09-20');
> Error in query: null; line 1 pos 7
> {code}
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