BUG #7486: Error Group by - Mailing list pgsql-bugs

The following bug has been logged on the website:

Bug reference:      7486
Logged by:          Anderson Abreu
Email address:      andersonabreu@gmail.com
PostgreSQL version: 8.4.12
Operating system:   Linux
Description:=20=20=20=20=20=20=20=20

Dear,

I'm test the script, for example: select attA, attB from table1 group by
attA.

In postgre 8.4.X show error column attB must appear in the GROUP BY clause
or be used in an aggregate function.

But, in postgre 9.1.X the query running sucesfully.

Why?

Thank's