Created
January 28, 2011 17:45
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+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | |
| activities | CREATE TABLE `activities` ( | |
`id` int(11) NOT NULL AUTO_INCREMENT, | |
`user_id` int(11) DEFAULT NULL, | |
`ip` varchar(255) DEFAULT NULL, | |
`activity_type_id` int(11) DEFAULT NULL, | |
`created_at` datetime DEFAULT NULL, | |
`updated_at` datetime DEFAULT NULL, | |
`url` varchar(255) DEFAULT NULL, | |
`publisher_id` int(11) DEFAULT NULL, | |
`local_user_time` datetime DEFAULT NULL, | |
`user_badge_id` int(11) DEFAULT NULL, | |
`points` int(11) DEFAULT '0', | |
`behavior_id` int(11) DEFAULT NULL, | |
`event_id` int(11) DEFAULT NULL, | |
PRIMARY KEY (`id`), | |
KEY `index_activities_on_user_id_and_publisher_id_and_behavior_id` (`user_id`,`publisher_id`,`behavior_id`), | |
KEY `index_activities_on_created_at_and_user_id_and_publisher_id` (`created_at`,`user_id`,`publisher_id`) | |
) ENGINE=InnoDB AUTO_INCREMENT=7902359 DEFAULT CHARSET=latin1 | | |
+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | |
1 row in set (0.00 sec) | |
mysql> explain SELECT sum(`activities`.points) AS sum_points FROM `activities` WHERE (`activities`.`user_id` = 2688 AND `activities`.`publisher_id` = 2); | |
+----+-------------+------------+------+--------------------------------------------------------------+--------------------------------------------------------------+---------+-------------+------+-------------+ | |
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | | |
+----+-------------+------------+------+--------------------------------------------------------------+--------------------------------------------------------------+---------+-------------+------+-------------+ | |
| 1 | SIMPLE | activities | ref | index_activities_on_user_id_and_publisher_id_and_behavior_id | index_activities_on_user_id_and_publisher_id_and_behavior_id | 10 | const,const | 9860 | Using where | | |
+----+-------------+------------+------+--------------------------------------------------------------+--------------------------------------------------------------+---------+-------------+------+-------------+ | |
1 row in set (0.00 sec) | |
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