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https://issues.apache.org/jira/browse/NIFI-2622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433080#comment-15433080
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Matt Burgess commented on NIFI-2622:
------------------------------------
The ARRAY handling was already moved as part of NIFI-2623, so the remainder of
the effort is to add STRUCT and JAVA_OBJECT cases to the switch for String
processing.
> SelectHiveQL with Avro output doesn't handle complex types
> ----------------------------------------------------------
>
> Key: NIFI-2622
> URL: https://issues.apache.org/jira/browse/NIFI-2622
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Fix For: 1.1.0
>
>
> Hive supports table columns of complex type, such as Arrays, Structs, Maps,
> etc. However when using SelectHiveQL with Avro output, the result set is not
> being converted correctly and an error occurs.
> This is a fundamental issue with the way SelectHiveQL attempts to create an
> Avro schema without having seen any of the rows, since the sub-types of
> complex items cannot be determined from the SQL type alone.
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