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https://issues.apache.org/jira/browse/GORA-244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13937780#comment-13937780
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Akber Choudhry commented on GORA-244:
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OK. Will do. Can you please merge with GORA-292, if possible.
I am looking for architecture guidance/feedback on one of the four possible
approaches on UNIONs, as the underlying problem was default values presenting
themselves as UNIONs and thus UNIONs also occurring in the values of Map types.
- Only support UNONs with null and another type and store the branch index in
Avro-encoding -- I have this working and tests passing.
- Only support UNIONs with null and another type (this is OK for Nutch schema
and Gora test suites) and pick the non-null branch when decoding. In this way,
the Avro-encoded UNION index marker would not need to be saved along with the
native value.
- Support all UNIONs with Avro-encoding of the UNION index and save in
Avro-encoding.
- Support all UNIONs with String encoding of the UNION type and index as part
of the value being saved.
Any guidance would be appreciated. I am also looking into he Cassandra and
other implementations for guidance.
> Upgrade to Avro 1.7.X in gora-accumulo
> --------------------------------------
>
> Key: GORA-244
> URL: https://issues.apache.org/jira/browse/GORA-244
> Project: Apache Gora
> Issue Type: Sub-task
> Components: gora-accumulo, gora-core
> Affects Versions: 0.4
> Reporter: Lewis John McGibbney
> Fix For: 0.4
>
> Attachments: GORA-244.patch, GORA-244v2.patch
>
>
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