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https://issues.apache.org/jira/browse/HIVE-27529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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KIRTI RUGE updated HIVE-27529:
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Summary: Add dictionary encoding support for parquet decimal types (was:
Support dictionary encoding support for parquet decimal types)
> Add dictionary encoding support for parquet decimal types
> ---------------------------------------------------------
>
> Key: HIVE-27529
> URL: https://issues.apache.org/jira/browse/HIVE-27529
> Project: Hive
> Issue Type: Improvement
> Reporter: KIRTI RUGE
> Assignee: KIRTI RUGE
> Priority: Major
> Attachments: image-2023-07-26-15-18-55-480.png
>
>
> Parquet does not support any dictionary of type decimal . At present,
> supported
> PlainValuesDictionary types are
> PlainFloatDictionary
> PlainIntegerDictionary
> PlainDoubleDictionary
> PlainLongDictionary
> PlainBinaryDictionary
>
> Whenever there is conversion from any physical(any
> primitive)/logical(decimal) parquet type to hive decimal type, dictionary
> support needs to be considered.
> We need to investigate further on how this support can be implemented from
> hive side, or at parquet side if needed
>
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