У меня есть следующий запрос в продолжении
Providers.findAll({
attributes: [
"provider_id"
],
include: [{
model: ProvidersInsurance,
attributes: ["insurance_id"],
include: [{
model: Insurance,
attributes: ["insurance_id", "insurance_name"]
}, ]
},
{
model: ProvidersClients,
attributes: ["client_id"],
include: [{
model: Clients,
attributes: ["client_id", "client_name"]
}, ]
},
{
model: ProvidersCounties,
attributes: ["county_id"],
include: [{
model: Counties,
attributes: ["county_id", "county_name"]
}, ]
},
{
model: ProvidersSpecialities,
attributes: ["speciality_id"],
include: [{
model: Specialities,
attributes: ["speciality_id", "speciality_name"]
}, ]
},
{
model: ProvidersCategories,
attributes: ["category_id"],
include: [{
model: Categories,
attributes: ["category_id", "category_name"]
}, ]
}, {
model: Telehealth,
attributes: ["telehealth_name"]
}
],
where: {
updatedAt: {
[Op.between]: [req.query.fromdate, toDate]
}
}
}).then(providerData => {
console.log(providerData)
}).catch(err => {
console.log(err);
res.status(404).send({
reason: err.message
})
});
Выполнение занимает более 4 минут. Необработанный запрос вышеизложенного:
SELECT `providers`.`provider_id`,
`providers`.`providerFirstName`,
`providers`.`providerLastName`,
`providers`.`email`,
`providers`.`phoneNumber`,
`providers`.`address`,
`providers`.`agencyName`,
`providers`.`practiceCounty`,
`providers`.`city`,
`providers`.`state`,
`providers`.`zip`,
`providers`.`mondayHours`,
`providers`.`tuesdayHours`,
`providers`.`wednesdayHours`,
`providers`.`thursdayHours`,
`providers`.`fridayHours`,
`providers`.`saturdayHours`,
`providers`.`sundayHours`,
`providers`.`additionalInfo`,
`providers`.`website`,
`providers`.`newClientsAcceptance`,
`providers`.`updatedBy`,
`providers`.`otherCategories`,
`providers`.`otherInsurances`,
`providers`.`otherTelehealthServices`,
`providers`.`createdAt`,
`providers`.`updatedAt`,
`ProviderInsurances`.`provider_insurance_id` AS `ProviderInsurances.provider_insurance_id`,
`ProviderInsurances`.`insurance_id` AS `ProviderInsurances.insurance_id`,
`ProviderInsurances->Insurance`.`insurance_id` AS `ProviderInsurances.Insurance.insurance_id`,
`ProviderInsurances->Insurance`.`insurance_name` AS `ProviderInsurances.Insurance.insurance_name`,
`ProviderClients`.`provider_client_id` AS `ProviderClients.provider_client_id`,
`ProviderClients`.`client_id` AS `ProviderClients.client_id`,
`ProviderClients->Client`.`client_id` AS `ProviderClients.Client.client_id`,
`ProviderClients->Client`.`client_name` AS `ProviderClients.Client.client_name`,
`ProviderCounties`.`provider_county_id` AS `ProviderCounties.provider_county_id`,
`ProviderCounties`.`county_id` AS `ProviderCounties.county_id`,
`ProviderCounties->County`.`county_id` AS `ProviderCounties.County.county_id`,
`ProviderCounties->County`.`county_name` AS `ProviderCounties.County.county_name`,
`ProviderSpecialities`.`provider_speciality_id` AS `ProviderSpecialities.provider_speciality_id`,
`ProviderSpecialities`.`speciality_id` AS `ProviderSpecialities.speciality_id`,
`ProviderSpecialities->Speciality`.`speciality_id` AS `ProviderSpecialities.Speciality.speciality_id`,
`ProviderSpecialities->Speciality`.`speciality_name` AS `ProviderSpecialities.Speciality.speciality_name`,
`ProviderCategories`.`provider_category_id` AS `ProviderCategories.provider_category_id`,
`ProviderCategories`.`category_id` AS `ProviderCategories.category_id`,
`ProviderCategories->Category`.`category_id` AS `ProviderCategories.Category.category_id`,
`ProviderCategories->Category`.`category_name` AS `ProviderCategories.Category.category_name`,
`Telehealths`.`telehealth_id` AS `Telehealths.telehealth_id`,
`Telehealths`.`telehealth_name` AS `Telehealths.telehealth_name`
FROM `providers` AS `providers`
LEFT OUTER JOIN `provider_insurances` AS `ProviderInsurances` ON `providers`.`provider_id` = `ProviderInsurances`.`provider_id`
LEFT OUTER JOIN `insurance` AS `ProviderInsurances->Insurance` ON `ProviderInsurances`.`insurance_id` = `ProviderInsurances->Insurance`.`insurance_id`
LEFT OUTER JOIN `provider_clients` AS `ProviderClients` ON `providers`.`provider_id` = `ProviderClients`.`provider_id`
LEFT OUTER JOIN `clients` AS `ProviderClients->Client` ON `ProviderClients`.`client_id` = `ProviderClients->Client`.`client_id`
LEFT OUTER JOIN `provider_counties` AS `ProviderCounties` ON `providers`.`provider_id` = `ProviderCounties`.`provider_id`
LEFT OUTER JOIN `counties` AS `ProviderCounties->County` ON `ProviderCounties`.`county_id` = `ProviderCounties->County`.`county_id`
LEFT OUTER JOIN `provider_specialities` AS `ProviderSpecialities` ON `providers`.`provider_id` = `ProviderSpecialities`.`provider_id`
LEFT OUTER JOIN `specialities` AS `ProviderSpecialities->Speciality` ON `ProviderSpecialities`.`speciality_id` = `ProviderSpecialities->Speciality`.`speciality_id`
LEFT OUTER JOIN `provider_categories` AS `ProviderCategories` ON `providers`.`provider_id` = `ProviderCategories`.`provider_id`
LEFT OUTER JOIN `categories` AS `ProviderCategories->Category` ON `ProviderCategories`.`category_id` = `ProviderCategories->Category`.`category_id`
LEFT OUTER JOIN `telehealth` AS `Telehealths` ON `providers`.`provider_id` = `Telehealths`.`provider_id`
WHERE `providers`.`updatedAt` BETWEEN '2019-08-06 18:30:00' AND '2019-08-08 00:00:00';
Когда я выполняю вышеуказанный запрос на сервере mysql, он дает результат менее чем за 1 секунду. Принимая во внимание, что когда я выполняю через узел и продолжаю, это занимает слишком много времени, то есть примерно 4 минуты
Я хотел бы знать, почему запрос на продолжение занимает слишком много времени
sequelize
отображает каждую строку в модель данных с использованием всей вложенности (include
), фильтрации атрибутов (attributes
) и множества других правил, которые вы предоставили. - person Ihor Sakailiuk   schedule 08.08.2019