[IMPALA-144] Do partition pruning for arbitrary predicates that are fully bound by a particular partition column

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 0.6
• Fix Version/s: Impala 1.0
• Assignee: Marcel Kinard
• Reporter: Marcel Kinard
• Created: 16/Mar/13 15:29
• Updated: 20/Dec/15 00:04
• Resolved: 21/Mar/13 16:08

Description

We currently can't utilize a predicate like "country_code in ('DE', 'FR', 'US')" to do partitioning pruning, because that requires an equality predicate or a binary comparison.

We should create a superclass of planner.ValueRange, ValueSet, that can be constructed with an arbitrary predicate, and whose isInRange(analyzer, valueExpr) constructs a literal predicate by substitution of the valueExpr into the predicate.