count(*) – Returns the total number of retrieved rows, including rows containing null. count(expr[, expr…])

cosine_distance(ftvec1, ftvec2) – Returns a cosine distance of the given two vectors WITH docs as

cosine_similarity(ftvec1, ftvec2) – Returns a cosine similarity of the given two vectors WITH docs as

corr(expr1, expr2) – Returns Pearson coefficient of correlation between a set of number pairs. Platforms:

cos(expr) – Returns the cosine of `expr`, as if computed by `java.lang.Math.cos`. Platforms: WhereOS, Spark,

cosh(expr) – Returns the hyperbolic cosine of `expr`, as if computed by `java.lang.Math.cosh`. Platforms: WhereOS,