Query time 0.00135
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "29.70"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"cost_info": {
"sort_cost": "16.90"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_promotions",
"access_type": "ALL",
"rows_examined_per_scan": 13,
"rows_produced_per_join": 1,
"filtered": "10.00",
"cost_info": {
"read_cost": "5.53",
"eval_cost": "0.26",
"prefix_cost": "5.79",
"data_read_per_join": "104"
},
"used_columns": [
"promotion_id",
"company_id",
"conditions",
"bonuses",
"to_date",
"from_date",
"priority",
"stop",
"zone",
"conditions_hash",
"status",
"number_of_usages",
"users_conditions_hash",
"stop_other_rules"
],
"attached_condition": "(if(`eshopuga_upgr_4122`.`cscart_promotions`.`from_date`,(`eshopuga_upgr_4122`.`cscart_promotions`.`from_date` <= 1733951937),1) and if(`eshopuga_upgr_4122`.`cscart_promotions`.`to_date`,(`eshopuga_upgr_4122`.`cscart_promotions`.`to_date` >= 1733951937),1) and (`eshopuga_upgr_4122`.`cscart_promotions`.`status` in ('A','H')) and (`eshopuga_upgr_4122`.`cscart_promotions`.`zone` = 'catalog'))"
}
},
{
"table": {
"table_name": "cscart_promotion_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"promotion_id",
"lang_code"
],
"key_length": "9",
"ref": [
"eshopuga_upgr_4122.cscart_promotions.promotion_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.30",
"eval_cost": "0.26",
"prefix_cost": "7.35",
"data_read_per_join": "1K"
},
"used_columns": [
"promotion_id",
"name",
"short_description",
"detailed_description",
"lang_code"
]
}
},
{
"table": {
"table_name": "storefronts_promotions",
"access_type": "index",
"key": "PRIMARY",
"used_key_parts": [
"storefront_id",
"promotion_id"
],
"key_length": "8",
"rows_examined_per_scan": 13,
"rows_produced_per_join": 16,
"filtered": "100.00",
"using_index": true,
"using_join_buffer": "Block Nested Loop",
"cost_info": {
"read_cost": "2.06",
"eval_cost": "3.38",
"prefix_cost": "12.80",
"data_read_per_join": "270"
},
"used_columns": [
"storefront_id",
"promotion_id"
],
"attached_condition": "(<if>(found_match(storefronts_promotions), ((`eshopuga_upgr_4122`.`storefronts_promotions`.`storefront_id` = 1) or isnull(`eshopuga_upgr_4122`.`storefronts_promotions`.`storefront_id`)), true) and <if>(is_not_null_compl(storefronts_promotions), (`eshopuga_upgr_4122`.`storefronts_promotions`.`promotion_id` = `eshopuga_upgr_4122`.`cscart_promotions`.`promotion_id`), true))"
}
}
]
}
}
}