[GENERAL] Resetting serial type after "delete from table"

[John Gage]

If I "delete from table", which table contains a serial type field,  
and then insert new rows into the table "excluding the [serial] column  
from the list of columns in the INSERT statement", the numbers in the  
serial column resume where they left  off prior to the "delete from   
table": 639, 640, 641, 642 for example.

This behavior is totally acceptable, but is it possible to have the  
serial column reset itself to 1 following  "delete from table" (i.e.  
following flushing all the rows from the table)?  The only way I can  
think to do this is by altering the table by dropping the serial  
column and then altering it again by adding a new serial column before  
doing the insert.  That is only a couple of more lines of script, so I  
don't do the work, but is there an easier way?

Thanks,

John