Module sq 

Scalar Quantization (SQ) for efficient vector compression

This module implements Scalar Quantization, a simpler and faster alternative to Product Quantization (PQ) that quantizes each vector dimension independently.

SQ is particularly useful when:

• Training time needs to be minimal
• Simple, predictable compression is preferred
• Memory reduction is more important than extreme accuracy
• Real-time index updates are required (no retraining needed)

Structs

QuantizationParams

Quantization parameters for a single dimension

SqConfig

Scalar quantization configuration

SqIndex

Scalar quantization vector index

SqStats

Scalar quantization index statistics

Enums

QuantizationMode

Quantization mode