You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@impala.apache.org by "Riza Suminto (Jira)" <ji...@apache.org> on 2022/04/05 14:18:00 UTC
[jira] [Resolved] (IMPALA-11123) Optimize count(*) for ORC scans
[ https://issues.apache.org/jira/browse/IMPALA-11123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Riza Suminto resolved IMPALA-11123.
-----------------------------------
Fix Version/s: Impala 4.1.0
Resolution: Fixed
> Optimize count(*) for ORC scans
> -------------------------------
>
> Key: IMPALA-11123
> URL: https://issues.apache.org/jira/browse/IMPALA-11123
> Project: IMPALA
> Issue Type: Improvement
> Reporter: Quanlong Huang
> Assignee: Riza Suminto
> Priority: Critical
> Labels: ramp-up
> Fix For: Impala 4.1.0
>
>
> IMPALA-5036 and IMPALA-6501 added an optimisation for count\(*\) in Parquet and Kudu scans that avoids materialising dummy rows. We should do something similar for ORC.
> Refer IMPALA-5036 for more details.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)