[
        {"keyName": "reg_name", "sourceTable": "hdb_program_registration", "sourceColumn": "full_name", "dataType": "string", "isNullable": false},
        {"keyName": "pay_date", "sourceTable": "computed", "sourceColumn": "currentDate", "dataType": "date", "formatType": "custom:DD-MM-YYYY", "isNullable": false},
        {"keyName": "pay_amount", "sourceTable": "computed", "sourceColumn": "calculateTotalPaymentAmount", "dataType": "number", "formatType": "currency", "isNullable": false},
        {"keyName": "hdb_msd", "sourceTable": "computed", "sourceColumn": "getAllocatedProgramField:name", "dataType": "string", "isNullable": false}
    ]