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https://issues.apache.org/jira/browse/SPARK-27768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16843327#comment-16843327
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Dongjoon Hyun commented on SPARK-27768:
---------------------------------------
I'll remove the correctness label from this issue because we support `Infinity`
correctly.
{code}
scala> sql("SELECT CAST('Infinity' AS DOUBLE), CAST('infinity' AS DOUBLE)").show
+------------------------+------------------------+
|CAST(Infinity AS DOUBLE)|CAST(infinity AS DOUBLE)|
+------------------------+------------------------+
| Infinity| null|
+------------------------+------------------------+
{code}
> Incorrect statistical aggregate results when the inputs have constants
> infinity
> --------------------------------------------------------------------------------
>
> Key: SPARK-27768
> URL: https://issues.apache.org/jira/browse/SPARK-27768
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Xiao Li
> Priority: Major
> Labels: correctness
>
> When the inputs contain the constant 'infinity', Spark SQL does not generate
> the expected results.
> {code:java}
> SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
> FROM (VALUES ('1'), (CAST('infinity' AS DOUBLE))) v(x);
> SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
> FROM (VALUES ('infinity'), ('1')) v(x);
> SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
> FROM (VALUES ('infinity'), ('infinity')) v(x);
> SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
> FROM (VALUES ('-infinity'), ('infinity')) v(x);{code}
>
>
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