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https://issues.apache.org/jira/browse/HIVE-13251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HIVE-13251:
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Description: HIVE-7174 makes the avro schema change to match avro
definition, while it breaks the compatibility if the file is generated from the
previous Hive although the file schema from the file for such decimal is not
correct based on avro definition. We should allow to read old file format
"precision" : "4", "scale": "8", but when we write, we should write in the new
format. (was: HIVE-7174 makes the avro schema change to match avro definition,
while it breaks the compatibility if the file is generated from the previous
Hive although the file schema from the file for such decimal is not correct
based on avro defninition. We should allow to read old file format "precision"
: "4", "scale": "8", but when we write, we should write in the new format.)
> hive can't read the decimal in AVRO file generated from previous version
> ------------------------------------------------------------------------
>
> Key: HIVE-13251
> URL: https://issues.apache.org/jira/browse/HIVE-13251
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 2.1.0
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Attachments: HIVE-13251.1.patch
>
>
> HIVE-7174 makes the avro schema change to match avro definition, while it
> breaks the compatibility if the file is generated from the previous Hive
> although the file schema from the file for such decimal is not correct based
> on avro definition. We should allow to read old file format "precision" :
> "4", "scale": "8", but when we write, we should write in the new format.
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