Feat: Add column TotalPatients to CsAggregateMortalityAndHIVDeaths

[kevlanyo]

• Add new CTE PatientsData to contain a count of patients per facility by age group
• Link the new CTE to PatientExits to generate a TotalPatients value per facility per age group

@sourcery-ai review

Summary by Sourcery

New Features:

• Adds a TotalPatients column to the CsAggregateMortalityAndHIVDeaths table.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request introduces a new column, TotalPatients, to the CsAggregateMortalityAndHIVDeaths table. It calculates the total number of patients per facility and age group using a new CTE called PatientsData, and then integrates this data into the final SELECT statement.

ER diagram for CsAggregateMortalityAndHIVDeaths table changes

erDiagram
    CsAggregateMortalityAndHIVDeaths {
        varchar FacilityName
        int MFLCode
        varchar PartnerName
        varchar AgencyName
        datetime ExitDate
        varchar CohortYearMonth
        varchar AgeGroup
        int TotalPatients
        int NoOfDeaths
        int NoOfHIVDeaths
    }
    FACTART {
        int PatientKey
        int FacilityKey
        int AgeGroupKey
    }
    Dimagegroup {
        int AgeGroupKey
        varchar Datimagegroup
    }
    PatientExits {
        int PatientKey
        int FacilityKey
        datetime ExitDate
        varchar CohortYearMonth
        int Age
    }
    CsAggregateMortalityAndHIVDeaths ||--|| DimFacility : has
    CsAggregateMortalityAndHIVDeaths ||--|| DimPartner : has
    CsAggregateMortalityAndHIVDeaths ||--|| DimAgency : has
    FACTART }o--|| Dimagegroup : has
    PatientExits }o--|| FACTART : has

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File-Level Changes

Change	Details	Files
Introduced a new CTE to calculate the total number of patients per facility, grouped by age.	Created a PatientsData CTE to count distinct patients per facility and age group. Grouped the patient counts by FacilityKey and Datimagegroup.	Scripts/REPORTING/HIVCaseSurveillance/load_cs_aggregate_mortality_and_hiv_related_deaths.sql
Integrated the new patient count data into the final SELECT statement to include TotalPatients in the output.	Joined PatientsData CTE with the main query using FacilityKey and Datimagegroup. Added Patients.TotalPatients to the SELECT statement to include it in the result set. Included Patients.TotalPatients in the GROUP BY clause.	Scripts/REPORTING/HIVCaseSurveillance/load_cs_aggregate_mortality_and_hiv_related_deaths.sql

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[sourcery-ai]

Hey @kevlanyo - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider adding a comment explaining why Age.Age is used in the join to PatientExits instead of Age.AgeGroupKey.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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