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[PR #28126] fix: correct scoring in WeightRerankRunner for hybrid search #31952

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opened 2026-02-21 20:50:28 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:50:28 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/28126

State: open
Merged: No

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

Fixes #28125

  • Prevent text search scores from being mistakenly treated as vector search scores during deduplication, which caused inaccurate ranking
  • Fix usage of document.vector for cosine similarity, as document does not have this field

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Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/28126 **State:** open **Merged:** No --- > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. ## Summary <!-- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. --> Fixes #28125 - Prevent text search scores from being mistakenly treated as vector search scores during deduplication, which caused inaccurate ranking - Fix usage of document.vector for cosine similarity, as document does not have this field ## Screenshots | Before | After | |--------|-------| | <img width="646" height="393" alt="Image" src="https://github.com/user-attachments/assets/c14ea7fa-3ebb-405a-9271-296df6820f98" /> | <img width="676" height="386" alt="图片" src="https://github.com/user-attachments/assets/05bff4c5-eb9b-4d1e-b689-99965b30c1a6" /> | ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:50:28 -05:00
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Reference: langgenius/dify#31952
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