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https://issues.apache.org/jira/browse/SPARK-29385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean R. Owen reopened SPARK-29385:
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> Make `INTERVAL` values comparable
> ---------------------------------
>
> Key: SPARK-29385
> URL: https://issues.apache.org/jira/browse/SPARK-29385
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Priority: Major
> Fix For: 3.0.0
>
>
> PostgreSQL allows to compare interval by `=`, `<>`, `<`, `<=`, `>`, `>=`. For
> example:
> {code}
> maxim=# select interval '1 month' > interval '29 days';
> ?column?
> ----------
> t
> {code}
> but the same fails in Spark:
> {code}
> spark-sql> select interval 1 month > interval 29 days;
> Error in query: cannot resolve '(interval 1 months > interval 4 weeks 1
> days)' due to data type mismatch: GreaterThan does not support ordering on
> type interval; line 1 pos 7;
> 'Project [unresolvedalias((interval 1 months > interval 4 weeks 1 days),
> None)]
> +- OneRowRelation
> {code}
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