You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hive.apache.org by "Ádám Szita (Jira)" <ji...@apache.org> on 2021/07/21 09:40:00 UTC

[jira] [Updated] (HIVE-25360) Iceberg vectorized ORC reads don't support column reordering

     [ https://issues.apache.org/jira/browse/HIVE-25360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ádám Szita updated HIVE-25360:
------------------------------
    Description: 
HIVE-25256 added support for Iceberg backed tables to support CHANGE COLUMN statement. These include type, name and order changes to the schema. Native ORC tables only support renames, but with the help of Iceberg as an intermediary table format layer, this can be achieved, and works well for non-vectorized reads already.

We should adjust the vectorized read path to support the same.

> Iceberg vectorized ORC reads don't support column reordering
> ------------------------------------------------------------
>
>                 Key: HIVE-25360
>                 URL: https://issues.apache.org/jira/browse/HIVE-25360
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ádám Szita
>            Assignee: Ádám Szita
>            Priority: Major
>
> HIVE-25256 added support for Iceberg backed tables to support CHANGE COLUMN statement. These include type, name and order changes to the schema. Native ORC tables only support renames, but with the help of Iceberg as an intermediary table format layer, this can be achieved, and works well for non-vectorized reads already.
> We should adjust the vectorized read path to support the same.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)