fix annoy l2 (#3232)

Signed-off-by: shengjun.li <shengjun.li@zilliz.com>
2020-08-12 19:11:13 +08:00 · 2020-08-12 19:11:13 +08:00 · 43c272fd13
parent f9f597b257
commit 43c272fd13
1 changed files with 1 additions and 1 deletions
--- a/core/src/index/thirdparty/annoy/src/annoylib.h
+++ b/core/src/index/thirdparty/annoy/src/annoylib.h
@ -783,7 +783,7 @@ struct Euclidean : Minkowski {
  }
  template<typename T>
  static inline T normalized_distance(T distance) {
-    return sqrt(std::max(distance, T(0)));
+    return distance;
  }
  template<typename S, typename T>
  static inline void init_node(Node<S, T>* n, int f) {