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[PR #24409] fix(vector): use semantic version comparison for version check #30613

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opened 2026-02-21 20:47:53 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:47:53 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/24409

State: closed
Merged: Yes

Summary

Fixes a critical bug in Milvus vector database version comparison that could incorrectly evaluate version requirements for hybrid search functionality.

Problem

The current implementation in MilvusVector._check_hybrid_search_support() and OceanBaseVector._check_hybrid_search_support() uses string comparison of base_version attributes:

String comparison fails for multi-digit version numbers. This could disable hybrid search on newer Milvus versions that actually support it.

Solution

Replace string comparison with proper semantic version comparison using Version objects:

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/24409 **State:** closed **Merged:** Yes --- ## Summary Fixes a critical bug in Milvus vector database version comparison that could incorrectly evaluate version requirements for hybrid search functionality. ## Problem The current implementation in `MilvusVector._check_hybrid_search_support()` and `OceanBaseVector._check_hybrid_search_support()` uses string comparison of `base_version` attributes: String comparison fails for multi-digit version numbers. This could disable hybrid search on newer Milvus versions that actually support it. ## Solution Replace string comparison with proper semantic version comparison using Version objects: <!-- 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. --> ## 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 20:47:53 -05:00
yindo closed this issue 2026-02-21 20:47:53 -05:00
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Reference: langgenius/dify#30613
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