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Posted to issues@orc.apache.org by "Panagiotis Garefalakis (Jira)" <ji...@apache.org> on 2020/11/08 21:42:00 UTC
[jira] [Updated] (ORC-606) Optimize Timestamp parseNanos
calculation
[ https://issues.apache.org/jira/browse/ORC-606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Panagiotis Garefalakis updated ORC-606:
---------------------------------------
Affects Version/s: 1.7.0
> Optimize Timestamp parseNanos calculation
> -----------------------------------------
>
> Key: ORC-606
> URL: https://issues.apache.org/jira/browse/ORC-606
> Project: ORC
> Issue Type: Improvement
> Components: encoding
> Affects Versions: 1.7.0
> Reporter: Panagiotis Garefalakis
> Assignee: Panagiotis Garefalakis
> Priority: Major
> Fix For: 1.7.0
>
> Time Spent: 20m
> 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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