[IMPALA-5507] Help information of KEYVAL option in impala-shell is not clear enough

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: Impala 2.10.0
• Component/s: Clients
• Epic Color: ghx-label-2
• Assignee: Unassigned
• Reporter: Davy Xu
• Created: 14/Jun/17 09:19
• Updated: 11/Jul/17 15:51
• Resolved: 11/Jul/17 15:51

Description

Help information of KEYVAL option in impala-shell is described as following:
Define variable(s) to be used within the Impala session.

But user can not recognize the correct format according to the information.
We should add a clear description to guide user to operate.