Re: dates

John Ensign <john(at)deepsnow(dot)org> writes:
> select to_date( textfield1, 'MM-DD-YYYY') as startDate, CAST
> ( textfield2, int4) as duration, startDate + duration as endDate.

That's got at least two problems: one, that's not the syntax of CAST,
you need to write CAST(textfield2 AS int4); and two, you can't reference
a SELECT output column from another column like that. You could write

select
to_date(textfield1, 'MM-DD-YYYY') as startDate,
CAST(textfield2 AS int4) as duration,
to_date(textfield1, 'MM-DD-YYYY') + CAST(textfield2 AS int4) as endDate
from whatever ...

regards, tom lane