[HIVE-7944] current update stats for columns of a partition of a table is not correct

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.0
• Fix Version/s: 0.14.0
• Component/s: Statistics
• Assignee: Pengcheng Xiong
• Reporter: Pengcheng Xiong
• Created: 02/Sep/14 22:30
• Updated: 13/Nov/14 19:43
• Resolved: 03/Sep/14 20:52

Description

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 ekoifman 's comments

Issue Links

• blocks: HIVE-7811 Compactions need to update table/partition stats
• is duplicated by: HIVE-7982 Regression in explain with CBO enabled due to issuing query per K,V for the stats