[IMPALA-3968] qgen: create query profile emphasizing first_value / last_value testing

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Impala 2.7.0
• Component/s: Infrastructure
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Michael Brown
• Created: 09/Aug/16 22:33
• Updated: 23/Oct/18 22:40

Description

For directed testing of first_value / last_value [ignore nulls], we need a query profile that emphasizes the use of those first_value and last_value analytic functions. The default query profile is too broad and is not likely to give us much coverage on those functions.