Pengcheng Xiong created HIVE-8061:
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Summary: improve the speed of col stats update speed
Key: HIVE-8061
URL: https://issues.apache.org/jira/browse/HIVE-8061
Project: Hive
Issue Type: Improvement
Reporter: Pengcheng Xiong
Assignee: Pengcheng Xiong
Priority: Minor
We worked hard towards faster update stats for columns of a partition of a
table previously https://issues.apache.org/jira/browse/HIVE-7736
and https://issues.apache.org/jira/browse/HIVE-7876
Although there is some improvement, it is only correct in the first run. There
will be duplicate column stats later. Thanks to Eugene Koifman 's comments.
We fixed this in https://issues.apache.org/jira/browse/HIVE-7944 by reversing
the patch.
This JIRA ticket is my another try to improve the speed.
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