ES|QL `V_L2_NORM` function

Syntax

Embedded

Parameters

left: first dense_vector to calculate l2 norm similarity
right: second dense_vector to calculate l2 norm similarity

Description

Calculates the l2 norm between two dense_vectors.

Supported types

left	right	result
dense_vector	dense_vector	double

Example

		from colors
| eval similarity = v_l2_norm(rgb_vector, [0, 255, 255])
| sort similarity desc, color asc
		
	

color:text	similarity:double
red	441.6729431152344
maroon	382.6669616699219
crimson	376.36419677734375
orange	371.68536376953125
gold	362.8360595703125
black	360.62445068359375
magenta	360.62445068359375
yellow	360.62445068359375
firebrick	359.67486572265625
tomato	351.0227966308594