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[PR #27313] fix: document word_count appear negative #31739

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opened 2026-02-21 20:50:02 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:50:02 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/27313

State: closed
Merged: Yes

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 #27310
Reason:
document.word_count counts the number of characters extracted from the document. In the subsequent transform phase, there may be overlapping characters between segments, so the total number of characters across all segments of the document will be greater than document.word_count.
image

When deleting in segments, document_word_count - segment.word_count can result in negative values.
image
Fix:
After completing the segmentation of the document, count the total number of characters in each segment and assign it to document.word_count, rather than during the extraction stage.

Screenshots

Before After
... ...

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/27313 **State:** closed **Merged:** Yes --- > [!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 #27310 Reason: document.word_count counts the number of characters extracted from the document. In the subsequent transform phase, there may be overlapping characters between segments, so the total number of characters across all segments of the document will be greater than document.word_count. <img width="1473" height="256" alt="image" src="https://github.com/user-attachments/assets/747740cd-a8d6-414f-82e4-b304cdbb1fed" /> When deleting in segments, document_word_count - segment.word_count can result in negative values. <img width="1337" height="256" alt="image" src="https://github.com/user-attachments/assets/e155edd8-fd7a-48d3-91dc-5ad38fdffcd0" /> Fix: After completing the segmentation of the document, count the total number of characters in each segment and assign it to document.word_count, rather than during the extraction stage. ## Screenshots | Before | After | |--------|-------| | ... | ... | ## 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 20:50:02 -05:00
yindo closed this issue 2026-02-21 20:50:02 -05:00
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Reference: langgenius/dify#31739
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