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

Posted to dev@orc.apache.org by "Panagiotis Garefalakis (Jira)" <ji...@apache.org> on 2020/04/15 11:52:00 UTC

[jira] [Created] (ORC-619) Row-level filtering support for nested types

Panagiotis Garefalakis created ORC-619:
------------------------------------------

             Summary: Row-level filtering support for nested types
                 Key: ORC-619
                 URL: https://issues.apache.org/jira/browse/ORC-619
             Project: ORC
          Issue Type: Sub-task
            Reporter: Panagiotis Garefalakis
            Assignee: Panagiotis Garefalakis


In the current implementation we are propagating the selected array (using filterContext) to the appropriate subtypes to allow row-level skipping.

This works for basic types such as Decimals and complex ones like inner structs there is 1-1 mapping in the rows, however it more complex for nested types such as Lists or Maps where the number of inner rows is different and thus needs special handling.



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