l1_distance
l1_distanceβ
descriptionβ
Syntaxβ
DOUBLE l1_distance(ARRAY<T> array1, ARRAY<T> array2)
Calculates the distance between two points (the values of the vectors are the coordinates) in L1 space. Return NULL if input array is NULL or any element of array is NULL.
Noticeβ
- nested type of input array support: TINYINT, SMALLINT, INT, BIGINT, LARGEINT, FLOAT, DOUBLE
- input array1 and array2 should have the same element size
exampleβ
sql> SELECT l1_distance([1, 2], [2, 3]);
+---------------------------------------+
| l1_distance(ARRAY(1, 2), ARRAY(2, 3)) |
+---------------------------------------+
| 2 |
+---------------------------------------+
keywordsβ
L1_DISTANCE,DISTANCE,L1,ARRAY