Re: [SQL] Exception handling from trigger

2004-08-09 Thread Vlad Dimitriu
I would design those columns as text and enforce value length restrictions with triggers. It's a false problem: I define the data type for a field and want to check his value after the exception that I can't fit larger data into my field. Thank you, Rod, Tom ---(end o

Re: [SQL] Exception handling from trigger

2004-08-09 Thread Vlad Dimitriu
Tom Lane wrote: You can't. From a logical perspective this is sensible, because the trigger is handed data already formed into a tuple. If the presented tuple contained a mycolumn value wider than 64 characters then it would not be a legal value of the rowtype (any more than if, say, the column v

[SQL] Exception handling from trigger

2004-08-09 Thread Vlad Dimitriu
base catch this error before my 'before insert'-trigger (using character_length(new.mycolumn) ...). Is this way of handling exceptions possible in postgres ? If so, what is the normal way to handle this exceptions, from a plpgsql/trigger(rule??) perspective ? Th