[KYLIN-2896] Refine query exception cache

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Fix Version/s: v2.6.0
• Component/s: Query Engine
• Assignee: Zhong Yanghong
• Reporter: Zhong Yanghong
• Created: 25/Sep/17 04:23
• Updated: 12/Jan/19 06:41
• Resolved: 30/Oct/18 06:04

Description

It's not necessary to divide query cache into success and exception. Only one query cache is enough. And some special exception needs to be cached.