You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@kylin.apache.org by "wangrupeng (Jira)" <ji...@apache.org> on 2020/08/26 09:58:00 UTC

[jira] [Created] (KYLIN-4722) Add the number of files scaned when querying

wangrupeng created KYLIN-4722:
---------------------------------

             Summary: Add the number of files scaned when querying
                 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
             Fix For: v4.0.0-alpha


Now, the query result contains scaned rows, scaned bytes. 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]



--
This message was sent by Atlassian Jira
(v8.3.4#803005)