PREHOOK: query: DESCRIBE FUNCTION ltrim
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION ltrim
POSTHOOK: type: DESCFUNCTION
ltrim(str) - Removes the leading space characters from str 
PREHOOK: query: DESCRIBE FUNCTION EXTENDED ltrim
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED ltrim
POSTHOOK: type: DESCFUNCTION
ltrim(str) - Removes the leading space characters from str 
Example:
  > SELECT ltrim('   facebook') FROM src LIMIT 1;
  'facebook'