PREHOOK: query: DESCRIBE FUNCTION ~
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION ~
POSTHOOK: type: DESCFUNCTION
~ n - Bitwise not
PREHOOK: query: DESCRIBE FUNCTION EXTENDED ~
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED ~
POSTHOOK: type: DESCFUNCTION
~ n - Bitwise not
Example:
  > SELECT ~ 0 FROM src LIMIT 1;
  -1