[Enhance]: will zevc python api support PQ QuantizeType index?

[lihaofd]

Affected Component

HNSW/IVF, Python API

Current Behavior

https://github.com/alibaba/zvec/blob/main/src/include/zvec/core/interface/index_param.h#L79 have QuantizerType named kPQ, while python api only have FP16/INT8/INT4 supported in https://zvec.org/api-reference/python/types/#zvec.typing.QuantizeType

Desired Improvement

will zevc python api support PQ QuantizeType index?

Impact

will zevc python api support PQ QuantizeType index?

[feihongxu0824]

Thank you for raising this issue. Product Quantization (PQ) is not currently supported, but it is definitely on our roadmap. The code you saw at https://github.com/alibaba/zvec/blob/main/src/include/zvec/core/interface/index_param.h#L79 is just a placeholder, and we apologize for any confusion caused.
We have already introduced the initial implementation of PQ in the DiskANN PR #369 . In the future, we plan to design PQ as a more generalized interface so that it can be compatible with other algorithms such as HNSW and IVF. Please stay tuned, and thank you for your interest!