cosine_distance

description

Syntax

DOUBLE cosine_distance(ARRAY<T> array1, ARRAY<T> array2)

计算两个向量（向量值为坐标）之间的余弦距离如果输入array为NULL，或者array中任何元素为NULL，则返回NULL

Notice

输入数组的子类型支持：TINYINT、SMALLINT、INT、BIGINT、LARGEINT、FLOAT、DOUBLE
输入数组array1和array2，元素数量需保持一致

example

sql> SELECT cosine_distance([1, 2], [2, 3]);
+-------------------------------------------+
| cosine_distance(ARRAY(1, 2), ARRAY(2, 3)) |
+-------------------------------------------+
|                     0.0077221232863322609 |
+-------------------------------------------+

keywords

COSINE_DISTANCE,DISTANCE,COSINE,ARRAY

cosine_distance​

description​

Syntax​

Notice​

example​

keywords​

cosine_distance

description

Syntax

Notice

example

keywords