answer:Title: Horizon Rehabilitation Center Layout and Facilities: The Horizon Rehabilitation Center is an exceptional facility designed to cater to individuals with paraplegia, amputations, and other mobility impairments. The architect and designer envisioned a unique, well-organized, and comfortable space, integrating ambitious and unconventional ideas to ensure a holistic healing environment. 1. Extensive Medical Facilities: The center boasts state-of-the-art medical facilities, including physiotherapy rooms, hydrotherapy pools, a fully equipped gymnasium, occupational therapy units, and specialized treatment rooms. It also features cutting-edge technology like robotic exoskeletons and advanced prosthetics labs, enabling patients to maximize their rehabilitation potential. 2. Multiple Entrances: To encourage inclusivity and easy accessibility, the center incorporates several entrances. Each entrance is equipped with automatic doors and ramps designed to accommodate various types of mobility aids, such as wheelchairs and prosthetics. This allows patients to conveniently access different areas of the center with ease. 3. Complex System of Ramps: The center features a network of ramps that connect all floors and facilities. The ramps are designed with gentle slopes, handrails, and non-slip surfaces to ensure safety and independent movement for everyone. Additionally, some ramps incorporate inclined gardens, providing a serene and therapeutic outdoor experience while transitioning between areas. 4. Twin and Double Rooms: While the Horizon Rehabilitation Center aims to provide privacy, its architect recognized the importance of fostering a supportive community environment. Therefore, the center offers a limited number of twin and double rooms, allowing patients to share accommodations with their loved ones or new friends undergoing similar journeys. Private rooms are also available for patients who prefer solitude during their rehabilitation. 5. Comfortable Common Areas: The center features spacious and inviting common areas to facilitate relaxation, socialization, and therapy. These areas include comfortable lounges, communal kitchens, accessible dining areas, and outdoor recreational spaces. They are designed to encourage social interaction, peer support, and an overall sense of camaraderie among patients. Patient Capacity and Staff Numbers: The Horizon Rehabilitation Center has been designed to accommodate a wide range of patients. Its optimal capacity is estimated to be around 200 individuals. The extensive medical facilities, combined with the comprehensive range of rehabilitation services, can support a diverse patient population. To deliver exceptional care, the center employs a dedicated and well-trained team consisting of: 1. Rehabilitation Specialists: A team of doctors specializing in physical medicine and rehabilitation, orthopedic surgeons, neurologists, and physiotherapists. 2. Nursing Staff: Skilled and compassionate nurses who provide round-the-clock care, medical support, and assistance to patients. 3. Therapists: Occupational therapists, speech therapists, and recreational therapists who focus on individualized therapy and activities to aid in rehabilitation. 4. Support Staff: Administrative personnel, maintenance workers, and technicians who ensure the smooth functioning of the center. In total, the staff numbers at Horizon Rehabilitation Center amount to around 250 individuals, including both medical and non-medical personnel, to ensure personalized attention and a high standard of care for every patient.

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answer:To change the 'domains' inside the 'report' array from an object to an array of objects, you can modify the JSON_AGG function for 'domains' to include JSON_BUILD_OBJECT for each row in the report_domains table. Here is an updated version of the query: ``` SELECT reports.trafficchannelid, reports.final, reports.compressedreport, JSON_AGG( JSON_BUILD_OBJECT( 'domains', JSON_AGG( JSON_BUILD_OBJECT( 'campaigns', report_domains.campaigns, 'domainid', report_domains.domainid, 'name', report_domains.name, 'weight', report_domains.weight, 'feedsource', report_domains.feedsource ) ) ) ) AS report, JSON_AGG( JSON_BUILD_OBJECT( 'campaigns', report_domains.campaigns, 'domainid', report_domains.domainid, 'name', report_domains.name, 'weight', report_domains.weight, 'feedsource', report_domains.feedsource ) ) AS domains FROM reports LEFT JOIN report_domains ON report_domains.reportid = reports.id GROUP BY reports.trafficchannelid, reports.final, reports.compressedreport; ``` In this version, the JSON_AGG function for 'domains' is nested inside the JSON_AGG function for 'report', creating an array of domain objects within each report object.

answer:Apologies for the error. The issue is that you cannot nest aggregate function calls directly within each other. In this scenario, you can make use of a subquery to achieve the desired result. Here's the modified query incorporating a subquery: ```sql SELECT trafficchannelid, final, compressedreport, JSON_AGG(report) AS report, JSON_AGG(domains) AS domains FROM (SELECT reports.trafficchannelid, reports.final, reports.compressedreport, JSON_BUILD_OBJECT( 'domains', JSON_AGG( JSON_BUILD_OBJECT( 'campaigns', report_domains.campaigns, 'domainid', report_domains.domainid, 'name', report_domains.name, 'weight', report_domains.weight, 'feedsource', report_domains.feedsource ) ) ) AS report, JSON_BUILD_OBJECT( 'campaigns', report_domains.campaigns, 'domainid', report_domains.domainid, 'name', report_domains.name, 'weight', report_domains.weight, 'feedsource', report_domains.feedsource ) AS domains FROM reports LEFT JOIN report_domains on report_domains.reportid = reports.id GROUP BY reports.trafficchannelid, reports.final, reports.compressedreport, report_domains.campaigns, report_domains.domainid, report_domains.name, report_domains.weight, report_domains.feedsource) AS subquery GROUP BY trafficchannelid, final, compressedreport; ``` In this updated query, the subquery is used to first generate the individual report and domains objects using JSON_BUILD_OBJECT and JSON_AGG functions. Then, the outer query performs JSON_AGG on the subquery results grouped by the desired fields. This will allow the 'domains' field to be an array of objects within the 'report' array.