[ https://issues.apache.org/jira/browse/SPARK-24982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li resolved SPARK-24982.
-----------------------------
Resolution: Fixed
Fix Version/s: 2.4.0
> UDAF resolution should not throw java.lang.AssertionError
> ---------------------------------------------------------
>
> Key: SPARK-24982
> URL: https://issues.apache.org/jira/browse/SPARK-24982
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.3.0, 2.3.1
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Priority: Major
> Fix For: 2.4.0
>
>
> See udaf.sql.out:
>
> {code:java}
> – !query 3
> SELECT default.myDoubleAvg(int_col1, 3) as my_avg from t1
> – !query 3 schema
> struct<>
> – !query 3 output
> java.lang.AssertionError
> assertion failed: Incorrect number of children1{code}
>
> We should never throw AssertionError unless there is a bug in the system itself.
>
>
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