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Posted to issues@orc.apache.org by "Panagiotis Garefalakis (Jira)" <ji...@apache.org> on 2020/03/03 13:21:00 UTC

[jira] [Commented] (ORC-606) Optimize Timestamp parseNanos calculation

    [ https://issues.apache.org/jira/browse/ORC-606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17050187#comment-17050187 ] 

Panagiotis Garefalakis commented on ORC-606:
--------------------------------------------

 [~jcamachorodriguez] [~gopalv] [~rbalamohan]  can you please take a look?
This is a simple improvement along the lines of ORC-595.

> Optimize Timestamp parseNanos calculation
> -----------------------------------------
>
>                 Key: ORC-606
>                 URL: https://issues.apache.org/jira/browse/ORC-606
>             Project: ORC
>          Issue Type: Improvement
>          Components: encoding
>            Reporter: Panagiotis Garefalakis
>            Assignee: Panagiotis Garefalakis
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> TimestampTreeReader currently uses a loop to calculate the scale of nanoseconds.
> We can avoid the loop using array of pre-calculated powers of 10.



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