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Posted to issues@kylin.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/08/27 02:34:00 UTC
[jira] [Commented] (KYLIN-4722) Add more statistics to the query
results
[ https://issues.apache.org/jira/browse/KYLIN-4722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17185566#comment-17185566 ]
ASF GitHub Bot commented on KYLIN-4722:
---------------------------------------
RupengWang closed pull request #1379:
URL: https://github.com/apache/kylin/pull/1379
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> Add more statistics to the query results
> ----------------------------------------
>
> Key: KYLIN-4722
> URL: https://issues.apache.org/jira/browse/KYLIN-4722
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Affects Versions: v4.0.0-alpha
> Reporter: wangrupeng
> Assignee: wangrupeng
> Priority: Minor
> Fix For: v4.0.0-alpha
>
>
> Now, the query result contains scaned rows, scaned bytes. There are some other statistics can be added like the number of scan files, spark scan time, etc.
> It will be useful to add the number of parquet files scaned when querying, especially, the shard by column is configured which will decrease the number of scaned parquet files to improve query efficency.
> To read more about shard by column with below link.
> [https://cwiki.apache.org/confluence/display/KYLIN/Improving+query+effeciency+by+set+shard+by+column]
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