name of a column returned from a table function

DB Version 7,4.

 

I had a look through the docs, but the information on table functions (those returning SETOF something) seems to have gone missing from the 7.4 docs. I found something under 7.3, but it didn't answer my question, which is...

 

I've written a little table function that simply returns all the dates in a month. No problems so far. Now I want to outer join this list to another table, but I dont know what to call the column returned by the function. All the examples I saw just had "select * from <fnname>".

 

I want do something like "select <fnsdatecolname>,... from <myfn> join <atable> on (<fnsdatecolname> = <atablesdatecolname>;

 

Searching the lists, I found something to the effect that this might have problems. Is that still the case?

 

Thanks

Iain