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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)

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Syntax

VECTOR_MANHATTAN_DISTANCE(<array>, <array>)

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Parameters

ParameterDescriptionSupported 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.

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Notes

Both input array arguments must have the same number of elements.

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Return Type

DOUBLE

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Examples

Example 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;
Returns
distance (DOUBLE PRECISION)
4