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https://issues.apache.org/jira/browse/HBASE-16247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930490#comment-15930490
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stack commented on HBASE-16247:
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([~jerryhe] FYI, Sean is out this week...)
> SparkSQL Avro serialization doesn't handle enums correctly
> ----------------------------------------------------------
>
> Key: HBASE-16247
> URL: https://issues.apache.org/jira/browse/HBASE-16247
> Project: HBase
> Issue Type: Bug
> Components: spark
> Affects Versions: 2.0.0
> Reporter: Sean Busbey
> Priority: Critical
> Fix For: 2.0.0
>
>
> Avro's generic api expects GenericEnumSymbol as the runtime type for
> instances of fields that are of Avro type ENUM. The Avro 1.7 libraries are
> lax in some cases for handling this, but the 1.8 libraries are strict. We
> should proactively fix our serialization.
> (the lax serialization in 1.7 fails for some nested use in unions, see
> AVRO-997 for details)
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