SELECT ... udaf_function_name( [ ALL | DISTINCT ] [ expression ] [, ...])
The optional ALL or DISTINCT qualifiers apply only to UDAF calls. They do not apply to UDSF calls.
SELECT ... udaf_function_name( [ ALL | DISTINCT ] [ expression ] [, ...])
The optional ALL or DISTINCT qualifiers apply only to UDAF calls. They do not apply to UDSF calls.