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covar_pop(expr1, expr2) – Returns the population covariance of a set of number pairs. Platforms: WhereOS,

covar_samp(expr1, expr2) – Returns the sample covariance of a set of number pairs. Platforms: WhereOS,

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

cot(expr) – Returns the cotangent of `expr`, as if computed by `1/java.lang.Math.cot`. Platforms: WhereOS, Spark,

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