Maxim Gekk created SPARK-29187:
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Summary: 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
PostgreSQL return NULL for the NULL field from the date_part() function:
{code}
maxim=# select date_part(null, date'2019-09-20');
date_part
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(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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