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https://issues.apache.org/jira/browse/SPARK-32133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun reassigned SPARK-32133:
-------------------------------------
Assignee: JinxinTang
> Forbid time field steps for date start/end in Sequence
> ------------------------------------------------------
>
> Key: SPARK-32133
> URL: https://issues.apache.org/jira/browse/SPARK-32133
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: JinxinTang
> Assignee: JinxinTang
> Priority: Major
> Fix For: 3.1.0
>
>
> *Sequence time field steps for date start/end looks strange in spark as
> follows:*
> scala> sql("select explode(sequence(cast('2011-03-01' as date),
> cast('2011-03-02' as date), interval 1 hour))").head(3)
> res0: Array[org.apache.spark.sql.Row] = _Array([2011-03-01], [2011-03-01],
> [2011-03-01])_ *<- strange result.*
> scala> sql("select explode(sequence(cast('2011-03-01' as date),
> cast('2011-03-02' as date), interval 1 day))").head(3)
> res1: Array[org.apache.spark.sql.Row] = Array([2011-03-01], [2011-03-02])
> *While this behavior in Prosto make sense：*
> presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval '1'
> hour);
> Query 20200624_122744_00002_pehix failed: sequence step must be a day
> interval if start and end values are dates
> presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval '1'
> day);
> _col0
> [2011-03-01, 2011-03-02]
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