VECTOR_MANHATTAN_DISTANCE
Returns the Manhattan, or L1 distance, between two vectors. The Manhattan distance measures the total distance by moving strictly along orthogonal axes, similar to navigating streets in a city grid. It is calculated as the sum of absolute differences between corresponding elements of two vectors.
Alias: l1_distance (aligned with pgvector for compatibility)
Syntax
VECTOR_MANHATTAN_DISTANCE(<array>, <array>)
Parameters
| Parameter | Description | Supported input types |
|---|
<array> | The first array used in the distance calculation. | Any array of numeric data types. |
<array> | The second array used in the distance calculation. | Any array of numeric data types. |
Notes
Both input array arguments must have the same number of elements.
Return Type
DOUBLE
Examples
The following code returns the Manhattan distance between two vectors.
The Manhattan distance is calculated as the sum of absolute differences: |3 - 1| + |2 - 4| = 4.
SELECT VECTOR_MANHATTAN_DISTANCE([1, 4], [3, 2]) AS distance;
Rows: 1Execution time: 5.30ms
