INNER_PRODUCT

Syntax

Description of the illustration inner_product.eps

Purpose

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

Parameters

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

• INNER_PRODUCT returns NULL, if either expr1 or expr2 is NULL, or if the dimensions between the two vectors do not match up.

See Also:

• VECTOR_DISTANCE

• COSINE_DISTANCE

• L1_DISTANCE

• L2_DISTANCE

• Vector Functions