man i didnt even know you can do this AND s.date > q.date
i assumed that goes in a where clause ? > -----Original Message----- > From: news [mailto:[EMAIL PROTECTED] Behalf Of Harald Fuchs > Sent: Wednesday, May 26, 2004 8:01 PM > To: [EMAIL PROTECTED] > Subject: Re: need help with a complicated join > > > In article <[EMAIL PROTECTED]>, > Harald Fuchs <[EMAIL PROTECTED]> writes: > > > SELECT q.symbol, q.date, > > q.quote * product (s.split_from / s.split_to) AS adjusted_quote > > FROM quotes q > > LEFT JOIN splits s ON s.symbol = q.symbol AND s.date > q.date > > GROUP BY q.symbol, q.date, q.quote > > ORDER BY q.symbol, q.date > > > The problem is how to define the 'product' aggregate (along the lines > > of 'sum'). > > [ I like talking to myself :-) ] > > A workaround for the missing product aggregate would be > > SELECT q.symbol, q.date, q.quote, > q.quote * exp(sum(log(coalesce(s.split_from/s.split_to,1)))) > FROM quotes q > LEFT JOIN splits s ON s.symbol = q.symbol AND s.date > q.date > GROUP BY q.symbol, q.date, q.quote > ORDER BY q.symbol, q.date > > but don't ask me how that performs... > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
