(Aplolgies to Mr. McCoy, to whom I mailed this awnser in error) Mr. Bajerski, > > I've got answer from Postgres > > "Illegal attributes or non-group column" > > > > Is it error in query or in parser ? It's your query. In a GROUP BY query, all named columns must either contain and aggregate function (e.g. SUM) or be named in the GROUP BY clause. O'Reilly has just come out with a SQL in a Nutshell book. I'd suggest picking one up. -Josh Berkus -- ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete information technology [EMAIL PROTECTED] and data management solutions (415) 436-9166 for law firms, small businesses fax 436-0137 and non-profit organizations. pager 338-4078 San Francisco