"ronald tabada" <rtabada@gmail.com> writes:
> ... when I tried
> producing reports with more than 17 columns it displayed the following
> error message:
> ERROR: invalid return type
> SQL state: 42601
> Detail: Query-specified return tuple has 39 columns but crosstab returns 17.
Worksforme. Maybe you need to show us exactly what you did.
regards, tom lane