Explain Query (mysql)
EXPLAIN SELECT `t`.`marketing_custom_url_id` AS `t0_c0`, `t`.`marketing_campaign_referral_id` AS `t0_c1`, `t`.`url` AS `t0_c2`, `t`.`target_url` AS `t0_c3`, `campaign_referral`.`marketing_campaign_referral_id` AS `t1_c0`, `campaign_referral`.`name` AS `t1_c1` FROM `marketing_custom_urls` `t` LEFT OUTER JOIN `marketing_campaign_referrals` `campaign_referral` ON (`campaign_referral`.`marketing_campaign_referral_id`=`t`.`marketing_custom_url_id`) WHERE (`t`.`url`='marche')
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | no matching row in const table |