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https://issues.apache.org/jira/browse/SPARK-12250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai resolved SPARK-12250.
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Resolution: Fixed
Fix Version/s: 1.6.0
Issue resolved by pull request 10236
[https://github.com/apache/spark/pull/10236]
> Allow users to define a UDAF without providing details of its inputSchema
> -------------------------------------------------------------------------
>
> Key: SPARK-12250
> URL: https://issues.apache.org/jira/browse/SPARK-12250
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Yin Huai
> Fix For: 1.6.0
>
>
> Right now, users need to provide the exact inputSchema. Otherwise, our
> ScalaUDAF will fail because it tries to check the schema and input arguments.
> We should remove this check because it is common that users may have a
> complex input schema type and they do not want to provide the detailed schema.
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