Query Problem

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Hi There !!
My turn to ask for some help ;)

a friend of mine has a problem with this query:

SELECT zblog_category.catname, zblog_entry.entry_id, zblog_entry.entrytext, zblog_entry.entrytitle, zblog_entry.timestamp_creation, zblog_user.username, COUNT(zblog_comment.comment_id) AS comment_amount FROM zblog_comment RIGHT JOIN (zblog_user INNER JOIN (zblog_entry INNER JOIN zblog_category ON (zblog_category.cat_id = zblog_entry.id_cat)) ON (zblog_entry.id_user = zblog_user.user_id)) ON (zblog_comment.id_entry = zblog_entry.entry_id) WHERE zblog_comment.id_entry = zblog_entry.entry_id AND zblog_category.cat_id = zblog_entry.id_cat AND zblog_user.user_id = zblog_entry.id_user AND zblog_entry.timestamp_creation >= 1 AND zblog_entry.timestamp_creation < 999999999999 GROUP BY zblog_entry.entry_id ORDER BY zblog_entry.timestamp_creation DESC

The error we are getting is this

ERROR: column "zblog_category.catname" must appear in the GROUP BY clause or be used in an aggregate function

any idea? we kept trying for hours to no avail *sigh* :'(

thanks in advance for your time and attention!


Regards,
David Costa, PHP-PostgreSQL Advocacy team     http://dotgeek.org
david at postgresql ddoot org                 gurugeek att php dot net
$dsn = 'pgsql://world:most_advanced@localhost/open_source_database';




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