[IMPALA-12817] Introduce basic intermediate result caching to speed similar queries

• Type: Epic
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Epic Name: Intermediate Result Caching Phase 1
• Epic Color: ghx-label-12
• Assignee: Joe McDonnell
• Reporter: Joe McDonnell
• Created: 15/Feb/24 00:49
• Updated: 14/Nov/24 23:23

Description

This tracks the first phase of intermediate result caching.

The goals of the initial phase are to introduce a basic framework for caching tuples at various points in the plan. The first location that needs to work is immediately above an HdfsScanNode. Caching will use a local SSD to store the cache.