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https://issues.apache.org/jira/browse/AVRO-1402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13963200#comment-13963200
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Ryan Blue commented on AVRO-1402:
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I don't think evolution would cover the use case because the file format would
then require separate files for measurements where the only difference is the
resolution of the measurement. That wouldn't work for cases where these are
coming in from multiple devices simultaneously, that won't be upgraded at the
same time. I agree we should support the case where all of the scales are the
same, but I don't think it's correct for avro to force that to be the case.
> Support for DECIMAL type
> ------------------------
>
> Key: AVRO-1402
> URL: https://issues.apache.org/jira/browse/AVRO-1402
> Project: Avro
> Issue Type: New Feature
> Affects Versions: 1.7.5
> Reporter: Mariano Dominguez
> Assignee: Tom White
> Priority: Minor
> Labels: Hive
> Fix For: 1.7.7
>
> Attachments: AVRO-1402.patch, AVRO-1402.patch, AVRO-1402.patch,
> AVRO-1402.patch, UnixEpochRecordMapping.patch
>
>
> Currently, Avro does not seem to support a DECIMAL type or equivalent.
> http://avro.apache.org/docs/1.7.5/spec.html#schema_primitive
> Adding DECIMAL support would be particularly interesting when converting
> types from Avro to Hive, since DECIMAL is already a supported data type in
> Hive (0.11.0).
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