[FLINK-27718] Fix fail to count mutiple fields excpetion in Hive dialect

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.16.0, 1.17.0
• Component/s: Connectors / Hive
• Labels: pull-request-available
• Assignee: luoyuxia
• Reporter: luoyuxia
• Created: 20/May/22 08:30
• Updated: 05/Sep/22 13:11
• Resolved: 05/Sep/22 13:11

Description

In Hive, it's support to count multiple fields using the following sql:

 

select count(distinct a, b) from src

We are also expected to support it while using Hive dialect in Flink.

 

 

Issue Links

• links to: GitHub Pull Request #19406