[HIVE-24350] NullScanTaskDispatcher should use stats

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Labels: pull-request-available
• Assignee: Mustafa İman
• Reporter: Mustafa İman
• Created: 03/Nov/20 00:06
• Updated: 17/Nov/22 08:48
• Resolved: 14/Nov/20 02:05

Description

NullScanTaskDispatcher manually checks each partition directory to see if they are empty. While this is necessary in external tables, we can just use stats for managed tables.

Issue Links

• links to: GitHub Pull Request #1645
• links to: https://github.com/apache/hive/pull/1645