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https://issues.apache.org/jira/browse/PIG-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17400534#comment-17400534
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Koji Noguchi commented on PIG-5411:
-----------------------------------
[~jtolar], unless your patch is long, you can simply attach the patch on this
jira.
> Piggybank AvroStorage doesn't extract map value type
> ----------------------------------------------------
>
> Key: PIG-5411
> URL: https://issues.apache.org/jira/browse/PIG-5411
> Project: Pig
> Issue Type: Improvement
> Reporter: Jacob Tolar
> Priority: Major
>
> Piggybank's AvroStorage doesn't put the Avro map value type into the Pig
> schema.The map value has unknown type (=> is treated as bytearray).
>
> Pig's schema interface understands the concept of a map value type. This
> information should be made available when using Avro.
>
> Relevant bit of code:
> [https://github.com/apache/pig/blob/59ec4a326079c9f937a052194405415b1e3a2b06/contrib/piggybank/java/src/main/java/org/apache/pig/piggybank/storage/avro/AvroSchema2Pig.java#L116-L121]
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