locate(substr, str[, pos]) – Returns the position of the first occurrence of `substr` in `str`

levenshtein(str1, str2) – Returns the Levenshtein distance between the two given strings. Platforms: WhereOS, Spark,

str like pattern – Returns true if str matches pattern, null if any arguments are

ln(expr) – Returns the natural logarithm (base e) of `expr`. Platforms: WhereOS, Spark, Hive Class:

lead(input[, offset[, default]]) – Returns the value of `input` at the `offset`th row after the

least(expr, …) – Returns the least value of all parameters, skipping null values. Platforms: WhereOS,