[HIVE-23007] Do Not Consider Client Session For Default Fetch Size

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Target Version/s: 4.0.0
• Assignee: David Mollitor
• Reporter: David Mollitor
• Created: 10/Mar/20 18:49
• Updated: 17/Nov/22 08:50
• Resolved: 27/Mar/20 16:02

Description

Right now, when a client makes a new session, it's value override's the server's value for hive.server2.thrift.resultset.default.fetch.size. This is a server-side configuration and the client should not dictate what the server's default (preferred) size is.

• Remove superfluous null check
• Use a Collection's Singleton Map instead of creating a full-sized HashMap
• Code simplification