Im finding that when I execute a query joining to a large fact table (~450 million rows) using a composite key of INT(11) & DATE for a single Date i.e.
AND dimension.id = factable.id AND factable.Date = '2004-06-22' the query returns exceptionally fast. However, when I change this to a range, i.e. AND dimension.id = factable.id AND factable.Date >= '2004-06-15' AND factable.Date < '2004-06-22' the performance degrades disproportionately to the number of single day queries it would take to get the results. Since the main part of the SELECT statement is an aggregate, the first query does me no good. Does anyone have a similar experience, and/or suggestion for improving the performance of this? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
