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Andrew Kane
2023-03-21 11:43:30 -07:00
parent 29c7af5d18
commit b69ac51ad7
1 changed files with 1 additions and 0 deletions
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src/vector.c
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@@ -568,6 +568,7 @@ cosine_distance(PG_FUNCTION_ARGS)
normb += bx[i] * bx[i];
}
/* sqrt(a) * sqrt(b) == sqrt(a * b) */
PG_RETURN_FLOAT8(1 - (distance / sqrt(norma * normb)));
}