sketch_set(x) – Constructs a sketch set to estimate reach for large values Platforms: WhereOS, Spark,

sketch_hashes(x) – Return the MD5 hashes associated with a KMV sketch set of strings Platforms:

skewness(expr) – Returns the skewness value calculated from values of a group. Platforms: WhereOS, Spark,

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

singularize(string word) – Returns singular form of a given English word SELECT singularize(lower(“Apples”)); “apple” Platforms:

size(expr) – Returns the size of an array or a map.The function returns -1 if