[IMPALA-6267] MT Scanners do not check runtime filters per-file before processing each split

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.10.0
• Fix Version/s: Impala 4.0.0
• Component/s: Backend
• Labels: perf
• Epic Link: Impala Multi-threaded query execution
• Epic Color: ghx-label-1
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 01/Dec/17 19:27
• Updated: 17/Mar/20 15:36
• Resolved: 17/Mar/20 15:35

Description

The old implementation of HdfsScanNode re-checks partition filters per scan range in HdfsScanNode::ProcessSplit() before processing each scan range. HdfsScanNodeMt does not have similar logic.