Ok so I'm just revisiting this now as I've noticed a bit of a performance issue with delta indexes on large tables. I noticed that before delta indexing, sphinx runs what's specified as "sql_query_range" in the conf.
It looks something like this: sql_query_range = SELECT IFNULL(MIN(`id`), 1), IFNULL(MAX(`id`), 1) FROM `users` WHERE `users`.`delta` = 1 ... and for the normal core: sql_query_range = SELECT IFNULL(MIN(`id`), 1), IFNULL(MAX(`id`), 1) FROM `users` WHERE `users`.`delta` = 0 Clearly these queries can benefit from indexes on the delta column. -- You received this message because you are subscribed to the Google Groups "Thinking Sphinx" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/thinking-sphinx?hl=en.
