In sybase I can use the following syntax:
select 'T' as src,(if tbon is null or tbon < '1900/12/12' or tbon > '1900/9/30' then 'U' else 'P' endif) as pres from ftrans
this returns two columns: src = 'T' and pres which has either the value 'U' or 'P'
how would I express this in postgresql?
thanks
Richard