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https://issues.apache.org/jira/browse/ORC-12?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley moved HIVE-9451 to ORC-12:
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Workflow: jira (was: no-reopen-closed, patch-avail)
Key: ORC-12 (was: HIVE-9451)
Project: Orc (was: Hive)
> Add max size of column dictionaries to ORC metadata
> ---------------------------------------------------
>
> Key: ORC-12
> URL: https://issues.apache.org/jira/browse/ORC-12
> Project: Orc
> Issue Type: Improvement
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Labels: ORC
> Attachments: HIVE-9451.patch, HIVE-9451.patch
>
>
> To predict the amount of memory required to read an ORC file we need to know
> the size of the dictionaries for the columns that we are reading. I propose
> adding the number of bytes for each column's dictionary to the stripe's
> column statistics. The file's column statistics would have the maximum
> dictionary size for each column.
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