PREHOOK: query: DESCRIBE FUNCTION floor
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION floor
POSTHOOK: type: DESCFUNCTION
floor(x) - Find the largest integer not greater than x
PREHOOK: query: DESCRIBE FUNCTION EXTENDED floor
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED floor
POSTHOOK: type: DESCFUNCTION
floor(x) - Find the largest integer not greater than x
Example:
  > SELECT floor(-0.1) FROM src LIMIT 1;
  -1
  > SELECT floor(5) FROM src LIMIT 1;
  5