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https://issues.apache.org/jira/browse/SPARK-27768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16843325#comment-16843325
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Dongjoon Hyun commented on SPARK-27768:
---------------------------------------
Hi, [~smilegator]. This is a Java issue. To solve this, we can change at the
parser.
{code}
scala> java.lang.Double.parseDouble("Infinity")
res0: Double = Infinity
scala> java.lang.Double.parseDouble("infinity")
java.lang.NumberFormatException: For input string: "infinity"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
at java.lang.Double.parseDouble(Double.java:538)
... 49 elided
{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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