[DRILL-4657] Rank() will return wrong results if a frame of data is too big (more than 2 batches)

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.7.0
• Component/s: Execution - Relational Operators
• Assignee: Abdel Hakim Deneche
• Reporter: Abdel Hakim Deneche
• Reviewer: Abhishek Girish
• Created: 04/May/16 23:48
• Updated: 14/May/17 00:50
• Resolved: 07/May/16 00:15

Description

When you run a query with RANK, and one particular frame is too long to fit in 2 batches of data, you will get wrong result.

I was able to reproduce the issue in a unit test, thanks to the fact that we can control the size of the batches processed by the window operator. I will post a fix soon along with the unit test