Saving all output to "!!{outputDirectory}!!/udf_date_sub.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_date_sub.q
>>>  DESCRIBE FUNCTION date_sub;
'tab_name'
'date_sub(start_date, num_days) - Returns the date that is num_days before start_date.'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED date_sub;
'tab_name'
'date_sub(start_date, num_days) - Returns the date that is num_days before start_date.'
'start_date is a string in the format 'yyyy-MM-dd HH:mm:ss' or 'yyyy-MM-dd'. num_days is a number. The time part of start_date is ignored.'
'Example:'
'   > SELECT date_sub('2009-07-30', 1) FROM src LIMIT 1;'
'  '2009-07-29''
5 rows selected 
>>>  !record