You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hive.apache.org by "Teddy Choi (JIRA)" <ji...@apache.org> on 2017/02/02 07:52:51 UTC
[jira] [Commented] (HIVE-15743) vectorized text parsing: speed up
double parse
[ https://issues.apache.org/jira/browse/HIVE-15743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15849604#comment-15849604 ]
Teddy Choi commented on HIVE-15743:
-----------------------------------
[~gopalv], that's a practical idea!
> vectorized text parsing: speed up double parse
> ----------------------------------------------
>
> Key: HIVE-15743
> URL: https://issues.apache.org/jira/browse/HIVE-15743
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Teddy Choi
> Attachments: HIVE-15743.1.patch, HIVE-15743.2.patch, tpch-without.png
>
>
> {noformat}
> Double.parseDouble(
> new String(bytes, fieldStart, fieldLength, StandardCharsets.UTF_8));{noformat}
> This takes ~25% of the query time in some cases.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)