Other Functions
- LENGTH(expr)
- returns the length of the value in expr, where<expr>is one of the following:- A string: returns the number of utf8 characters in the string (alias for CHAR_LENGTH)
- A byte-array: returns the number of bytes in the array (alias for OCTET_LENGTH)
- A list: returns the number of elements in the list
- A set: returns the number of elements in the set
- A struct: returns the number of non-absent fields in the struct
 
- A string: returns the number of utf8 characters in the string (alias for