Created
June 12, 2017 10:06
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NO CUSTOM FIELDS EXPLAIN MYTRS
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| +----+--------------------+--------------------------+--------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------------------------------------+---------+--------------------------------------------------------+------+----------------------------------------------+ | |
| | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | | |
| +----+--------------------+--------------------------+--------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------------------------------------+---------+--------------------------------------------------------+------+----------------------------------------------+ | |
| | 1 | PRIMARY | sites | const | PRIMARY | PRIMARY | 4 | const | 1 | Using index; Using temporary; Using filesort | | |
| | 1 | PRIMARY | registration_items | ref | index_registration_items_on_activity_id,index_registration_items_on_cancelled_at,registration_type_cancelled | index_registration_items_on_cancelled_at | 6 | const | 42 | Using index condition; Using where | | |
| | 1 | PRIMARY | registrations | eq_ref | PRIMARY,index_registrations_on_type,index_registrations_on_site_id | PRIMARY | 4 | nextgen_development.registration_items.registration_id | 1 | Using where | | |
| | 1 | PRIMARY | users | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.user_id | 1 | NULL | | |
| | 1 | PRIMARY | user_statuses | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.users.user_status_id | 1 | NULL | | |
| | 1 | PRIMARY | addresses | ref | index_addresses_on_addressable_id_and_addressable_type | index_addresses_on_addressable_id_and_addressable_type | 773 | nextgen_development.users.id,const | 1 | Using where | | |
| | 1 | PRIMARY | companies | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.addresses.company_id | 1 | Using index | | |
| | 1 | PRIMARY | registrant_types | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.registrant_type_id | 1 | NULL | | |
| | 1 | PRIMARY | activities | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registration_items.activity_id | 1 | NULL | | |
| | 1 | PRIMARY | group_leaders | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.group_leader_id | 1 | NULL | | |
| | 1 | PRIMARY | time_slots | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registration_items.registerable_id | 1 | Using where; Using index | | |
| | 1 | PRIMARY | activity_groups | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.activities.activity_group_id | 1 | Using index | | |
| | 21 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 20 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 19 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 18 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 17 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 16 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 15 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 14 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 13 | DEPENDENT SUBQUERY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | No tables used | | |
| | 12 | DEPENDENT SUBQUERY | orders | ref | index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | NULL | | |
| | 12 | DEPENDENT SUBQUERY | ot_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 11 | DEPENDENT SUBQUERY | check_refund_orders | ref | PRIMARY,index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where | | |
| | 11 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_order_id | 5 | nextgen_development.check_refund_orders.id | 1 | Using where | | |
| | 11 | DEPENDENT SUBQUERY | check_refund_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 10 | DEPENDENT SUBQUERY | card_refund_orders | ref | PRIMARY,index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where | | |
| | 10 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_order_id | 5 | nextgen_development.card_refund_orders.id | 1 | Using where | | |
| | 10 | DEPENDENT SUBQUERY | card_refund_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 9 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_type | 99 | const | 1 | Using index condition; Using where | | |
| | 9 | DEPENDENT SUBQUERY | comp_payment_orders | eq_ref | PRIMARY,index_orders_on_registration_id | PRIMARY | 4 | nextgen_development.transactions.order_id | 1 | Using where | | |
| | 9 | DEPENDENT SUBQUERY | comp_payment_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 8 | DEPENDENT SUBQUERY | cash_payment_orders | ref | PRIMARY,index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where | | |
| | 8 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_order_id | 5 | nextgen_development.cash_payment_orders.id | 1 | Using where | | |
| | 8 | DEPENDENT SUBQUERY | cash_payment_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 7 | DEPENDENT SUBQUERY | check_payment_orders | ref | PRIMARY,index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where | | |
| | 7 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_order_id | 5 | nextgen_development.check_payment_orders.id | 1 | Using where | | |
| | 7 | DEPENDENT SUBQUERY | check_payment_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 6 | DEPENDENT SUBQUERY | card_payment_orders | ref | PRIMARY,index_orders_on_registration_id | index_orders_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where | | |
| | 6 | DEPENDENT SUBQUERY | transactions | ref | index_transactions_on_order_id,index_transactions_on_type | index_transactions_on_order_id | 5 | nextgen_development.card_payment_orders.id | 1 | Using where | | |
| | 6 | DEPENDENT SUBQUERY | card_payment_regs | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.registrations.id | 1 | Using where; Using index | | |
| | 5 | DEPENDENT SUBQUERY | hasum_reg_items | ref | index_registration_items_on_checked_out,index_registration_items_on_cancelled_at,registration_type_cancelled,assignment_aggregate | assignment_aggregate | 13 | const,const,func | 1 | Using index condition | | |
| | 4 | DEPENDENT SUBQUERY | hrsum_reg_items | ref | index_registration_items_on_checked_out,index_registration_items_on_cancelled_at,registration_type_cancelled,reg_item_joint_index,assignment_aggregate | registration_type_cancelled | 779 | func,const,const | 1 | Using index condition; Using where | | |
| | 4 | DEPENDENT SUBQUERY | hrsum_time_slots | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.hrsum_reg_items.registerable_id | 1 | NULL | | |
| | 3 | DEPENDENT SUBQUERY | arc_reg_items | ref | index_registration_items_on_checked_out,index_registration_items_on_activity_id,index_registration_items_on_cancelled_at,registration_type_cancelled,assignment_aggregate | assignment_aggregate | 13 | const,const,func | 1 | Using index condition | | |
| | 3 | DEPENDENT SUBQUERY | arc_activities | eq_ref | PRIMARY | PRIMARY | 4 | nextgen_development.arc_reg_items.activity_id | 1 | Using index | | |
| | 2 | DEPENDENT SUBQUERY | registration_transitions | ref | index_registration_transitions_on_registration_id | index_registration_transitions_on_registration_id | 5 | nextgen_development.registrations.id | 1 | Using where; Using filesort | | |
| +----+--------------------+--------------------------+--------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------------------------------------+---------+--------------------------------------------------------+------+----------------------------------------------+ |
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