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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/06/01 12:45:00 UTC
[jira] [Work logged] (HIVE-25421) Fallback from vectorization when reading Iceberg's time columns
[ https://issues.apache.org/jira/browse/HIVE-25421?focusedWorklogId=776847&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-776847 ]
ASF GitHub Bot logged work on HIVE-25421:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 01/Jun/22 12:44
Start Date: 01/Jun/22 12:44
Worklog Time Spent: 10m
Work Description: szlta opened a new pull request, #3334:
URL: https://github.com/apache/hive/pull/3334
As discussed in [HIVE-25420](https://issues.apache.org/jira/browse/HIVE-25420) time column is not native Hive type, reading it is more complicated, and is not supported for vectorized read when the file format is ORC. Trying this currently results in an exception, so we should make an effort to gracefully fall back to non-vectorized reads when there's such a column in the query's projection.
Issue Time Tracking
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Worklog Id: (was: 776847)
Remaining Estimate: 0h
Time Spent: 10m
> Fallback from vectorization when reading Iceberg's time columns
> ---------------------------------------------------------------
>
> Key: HIVE-25421
> URL: https://issues.apache.org/jira/browse/HIVE-25421
> Project: Hive
> Issue Type: Bug
> Reporter: Ádám Szita
> Assignee: Ádám Szita
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> As discussed in HIVE-25420 time column is not native Hive type, reading it is more complicated, and is not supported for vectorized read. Trying this currently results in an exception, so we should make an effort to
> * either gracefully fall back to non-vectorized reads when there's such a column in the query's projection
> * or work around the reading issue on the execution side.
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