Trying to debug code, came across a select statement that was missing a comma to separate fields like the following

Select fld1, fld2, fld3 ;
fld4, fld5 from cTable into cursor myCursor

A cursor was created where values were selected from fld3 and column was labeled as fld4. Hence did cause considerable confusion.

How long has the assumed 'AS' column name clause been working this way?