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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:
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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]
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