feat(vector): remove `simsimd` and use `nalgebra` instead

zhongzc commented 5 days ago

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

What's changed and what's your intention?

There are some issues with compiling simsimd, so it has been replaced with the more mature nalgebra for vector calculations.

Additionally, handling for potential endianness inconsistencies when converting Vec<u8> to vector values has been defensively added.

The distance function signature has changed and needs to be updated in the documentation:

The function name has been changed to add a vec_* prefix.
The return value of the distance function is now f32.

Checklist

[x] I have written the necessary rustdoc comments.
[x] I have added the necessary unit tests and integration tests.
[x] This PR requires documentation updates.

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zhongzc commented 5 days ago

@waynexia @WenyXu PTAL

codecov[bot] commented 5 days ago

Codecov Report

Attention: Patch coverage is 93.42105% with 10 lines in your changes missing coverage. Please review.

Project coverage is 83.76%. Comparing base (3633f25) to head (6d5cfee). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5027 +/- ## ========================================== - Coverage 84.00% 83.76% -0.24% ========================================== Files 1149 1152 +3 Lines 214820 214942 +122 ========================================== - Hits 180450 180043 -407 - Misses 34370 34899 +529 ```

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