COSINE_DISTANCE

COSINE_DISTANCE is a shorthand version of the VECTOR_DISTANCE function that calculates the cosine distance between two vectors. It takes two vectors as input and returns the distance between them as a BINARY_DOUBLE.

Syntax


Description of cosine_distance.eps follows
Description of the illustration cosine_distance.eps

Parameters

  • expr1 and expr2 must evaluate to vectors that have the same format and number of dimensions.

  • COSINE_DISTANCE returns NULL, if either expr1 or expr2 is NULL.

Parent topic: Vector Distance Functions and Operators