Jörn Horstmann created ARROW-10216:
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Summary: [Rust] Simd implementation of min/max aggregation kernels
for primitive types
Key: ARROW-10216
URL: https://issues.apache.org/jira/browse/ARROW-10216
Project: Apache Arrow
Issue Type: Improvement
Components: Rust
Reporter: Jörn Horstmann
Using a similar approach as the sum kernel (ARROW-10015). Instead of
initializing the accumulator with 0 we'd need the largest/smallest possible
value for each ArrowNumericType (i.e. u64::MAX or +-Inf)
Pseudo code for min aggregation
{code}
// initialize accumulator
min_acc = +Inf
// aggregate each chunk
min_acc = min(min_acc, select(valid, value, +Inf))
{code}
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