Created
January 25, 2013 18:26
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EXPLAIN for: SELECT | |
l.* | |
FROM | |
logs as l | |
INNER JOIN cloud_logs as cl1 | |
ON | |
cl1.id = l.cloud_log_id | |
-- INNER JOIN cloud_logs as cl2 | |
-- ON | |
-- cl2.id = l.cloud_log_id | |
INNER JOIN client_application_versions as cav1 | |
ON | |
cav1.id = cl1.client_application_version_id | |
-- INNER JOIN client_application_versions as cav2 | |
-- ON | |
-- cav2.id = cl2.client_application_version_id | |
INNER JOIN client_applications as ca | |
ON | |
ca.id = cav1.client_application_id | |
WHERE | |
(l.deleted_at IS NULL) | |
AND | |
(ca.account_id = 1) | |
AND | |
(ca.public_key = 'p0kZudG0') | |
AND | |
(cav1.public_key = '0HgoJRyE') | |
ORDER BY | |
l.timestamp DESC | |
LIMIT | |
0, 100 | |
+----+-------------+-------+--------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------+---------+------------------------------------------------+------+----------------------------------------------+ | |
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | | |
+----+-------------+-------+--------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------+---------+------------------------------------------------+------+----------------------------------------------+ | |
| 1 | SIMPLE | cav1 | ref | PRIMARY,index_client_application_versions_on_client_application_id,index_client_application_versions_on_public_key,index_cavs_on_client_application_id_and_public_key | index_client_application_versions_on_public_key | 768 | const | 1 | Using where; Using temporary; Using filesort | | |
| 1 | SIMPLE | ca | eq_ref | PRIMARY,index_client_applications_on_account_id,index_client_applications_on_public_key | PRIMARY | 4 | cloudlog_production.cav1.client_application_id | 1 | Using where | | |
| 1 | SIMPLE | cl1 | ref | PRIMARY,index_cloud_logs_on_client_application_version_id | index_cloud_logs_on_client_application_version_id | 5 | cloudlog_production.cav1.id | 417 | Using where; Using index | | |
| 1 | SIMPLE | l | ref | index_logs_on_cloud_log_id_and_deleted_at_and_timestamp,index_logs_on_cloud_log_id_and_deleted_at,index_logs_on_cloud_log_id,index_logs_on_deleted_at | index_logs_on_cloud_log_id_and_deleted_at | 14 | cloudlog_production.cl1.id,const | 4 | Using where | | |
+----+-------------+-------+--------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------+---------+------------------------------------------------+------+----------------------------------------------+ |
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