Saving all output to "!!{outputDirectory}!!/udf_unix_timestamp.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_unix_timestamp.q
>>>  DESCRIBE FUNCTION unix_timestamp;
'tab_name'
'unix_timestamp([date[, pattern]]) - Returns the UNIX timestamp'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED unix_timestamp;
'tab_name'
'unix_timestamp([date[, pattern]]) - Returns the UNIX timestamp'
'Converts the current or specified time to number of seconds since 1970-01-01.'
2 rows selected 
>>>  
>>>  SELECT 
'2009-03-20 11:30:01', 
unix_timestamp('2009-03-20 11:30:01') 
FROM src LIMIT 1;
'_c0','_c1'
'2009-03-20 11:30:01','1237573801'
1 row selected 
>>>  
>>>  SELECT 
'2009-03-20', 
unix_timestamp('2009-03-20', 'yyyy-MM-dd') 
FROM src LIMIT 1;
'_c0','_c1'
'2009-03-20','1237532400'
1 row selected 
>>>  
>>>  SELECT 
'2009 Mar 20 11:30:01 am', 
unix_timestamp('2009 Mar 20 11:30:01 am', 'yyyy MMM dd h:mm:ss a') 
FROM src LIMIT 1;
'_c0','_c1'
'2009 Mar 20 11:30:01 am','1237573801'
1 row selected 
>>>  
>>>  SELECT 
'random_string', 
unix_timestamp('random_string') 
FROM src LIMIT 1;
'_c0','_c1'
'random_string',''
1 row selected 
>>>  
>>>  
>>>  !record