Обсуждение: Crosstab limitation...

Good day... I'm new in postgresql and I used PostgreSQL 8.2. I tried<br />generating a query that can convert rows into
columns.I was<br />happy when I discovered the crosstab function. But when I tried<br />producing reports with more
than17 columns it displayed the following <br />error message:<br /><br />ERROR: invalid return type<br />SQL state:
42601<br/>Detail: Query-specified return tuple has 39 columns but crosstab returns 17.<br /><br />Can anyone help me?
Howcan I use crosstab w/ more than 17 columns? <br /> 

"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