PREHOOK: query: DESCRIBE FUNCTION ln
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION ln
POSTHOOK: type: DESCFUNCTION
ln(x) - Returns the natural logarithm of x
PREHOOK: query: DESCRIBE FUNCTION EXTENDED ln
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED ln
POSTHOOK: type: DESCFUNCTION
ln(x) - Returns the natural logarithm of x
Example:
  > SELECT ln(1) FROM src LIMIT 1;
  0