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Improved performance of cosine distance

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Andrew Kane
2023-03-21 11:25:25 -07:00
parent 18eb04e278
commit bc9e2a37ec
2 changed files with 2 additions and 1 deletions
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1
CHANGELOG.md
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@@ -1,5 +1,6 @@
## 0.4.1 (unreleased) ## 0.4.1 (unreleased)
- Improved performance of cosine distance
- Fixed index scan count - Fixed index scan count
## 0.4.0 (2023-01-11) ## 0.4.0 (2023-01-11)

2
src/vector.c
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@@ -568,7 +568,7 @@ cosine_distance(PG_FUNCTION_ARGS)
normb += bx[i] * bx[i]; normb += bx[i] * bx[i];
} }
PG_RETURN_FLOAT8(1 - (distance / (sqrt(norma) * sqrt(normb)))); PG_RETURN_FLOAT8(1 - (distance / sqrt(norma * normb)));
} }
/* /*