zhiqiang-hhhh opened a new pull request, #3461:
URL: https://github.com/apache/doris-website/pull/3461
## Summary
This PR adds a new vector quantization guide for Doris ANN and syncs it to
both `current` and `4.x` docs.
### Added docs
- `docs/ai/vector-search/quantization-survey.md`
- `versioned_docs/version-4.x/ai/vector-search/quantization-survey.md`
-
`i18n/zh-CN/docusaurus-plugin-content-docs/current/ai/vector-search/quantization-survey.md`
-
`i18n/zh-CN/docusaurus-plugin-content-docs/version-4.x/ai/vector-search/quantization-survey.md`
### Sidebar updates
- `sidebars.ts`
- `versioned_sidebars/version-4.x-sidebars.json`
### Assets
- `static/images/vector-search/quantization-survey/*.png`
- SQ: build time vs rows, memory usage vs rows
- PQ: index size on disk vs rows, build time vs rows, search time vs rows
## Notes
- Removed RaBitQ content because Doris does not currently support it.
- Kept the doc in an educational style with practical Doris guidance.
- Preserved a concise Faiss source-level section with proper Doris/Faiss
background context.
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