ERROR: a column definition list is required for functions returning "record"

[Zlatko Matić <zlatko.matic1@xxxxxxxxxxx>]

I have a plpgsql function that returns dataset.

First it was defined to return SETOF someview.

Then I changed it to return SETOF RECORD, in order to be able to return dataset with varying number of columns.

But, I get the following error:"ERROR: a column definition list is required for functions returning "record" SQL state: 42601".

What does it mean? What is "columns definition list"?

 

Thanks,

 

Zlatko