PREHOOK: query: DESCRIBE FUNCTION sqrt
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION sqrt
POSTHOOK: type: DESCFUNCTION
sqrt(x) - returns the square root of x
PREHOOK: query: DESCRIBE FUNCTION EXTENDED sqrt
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED sqrt
POSTHOOK: type: DESCFUNCTION
sqrt(x) - returns the square root of x
Example:
   > SELECT sqrt(4) FROM src LIMIT 1;
  2