[HIVE-27994] Optimize renaming the partitioned table

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Labels: pull-request-available
• Assignee: Zhihua Deng
• Reporter: Zhihua Deng
• Created: 10/Jan/24 14:24
• Updated: 29/Mar/24 17:50
• Resolved: 20/Jan/24 02:07

Description

In case of table rename, every row in PART_COL_STATS associated with the table should be fetched, stored in memory, delete & re-insert with new db/table name, this could take hours if the table has thousands of column statistics in PART_COL_STATS.

 

Issue Links

• is related to: HIVE-28011 Update the table info in PART_COL_STATS directly in case of table rename
• links to: GitHub Pull Request #4995