[
https://issues.apache.org/jira/browse/ORC-450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dongjoon Hyun updated ORC-450:
------------------------------
Affects Version/s: 1.8.0
> [C++] Support selecting list indices without materializing list items
> ---------------------------------------------------------------------
>
> Key: ORC-450
> URL: https://issues.apache.org/jira/browse/ORC-450
> Project: ORC
> Issue Type: Improvement
> Components: C++
> Affects Versions: 1.8.0
> Reporter: Quanlong Huang
> Assignee: Riza Suminto
> Priority: Major
> Fix For: 1.8.0
>
>
> As we don't have a type id for index field of list type, if we just want to
> get the list indices, we have to select the type id of the whole array, which
> cause unneccessary materializaion on the array item.
> The offset stream is stored sperately with the content stream. We are able to
> just materialize the list indices.
> We may need new interfaces in RowReaderOptions to specifiy this.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
