Sort search parameter of Observations does not changes result order

[androBermudez]

When retrieving all observations with the same code the result is not sorted.

GET /Patient/pat1/Observation?_count=10&_totalMethod=count&code=29463-7&_sort=-date
GET /Patient/pat1/Observation?_count=10&_totalMethod=count&code=29463-7&_sort=date
GET /Observation?_count=10&_totalMethod=count&subject=pat1&code=29463-7&_sort=-date
GET /Observation?_count=10&_totalMethod=count&subject=pat1&code=29463-7&_sort=date

this is the result:

{
  "resourceType": "Bundle",
  "type": "search",
  "entry": [
    {
      "resource": {
        "category": [
          {
            "coding": [
              {
                "code": "vital-signs",
                "system": "http://hl7.org/fhir/observation-category",
                "display": "Vital Signs"
              }
            ]
          }
        ],
        "meta": {
          "lastUpdated": "2019-04-26T13:53:11.630Z",
          "versionId": "1797"
        },
        "value": {
          "Quantity": {
            "code": "[lb_av]",
            "unit": "lbs",
            "value": 183,
            "system": "http://unitsofmeasure.org"
          }
        },
        "resourceType": "Observation",
        "status": "final",
        "effective": {
          "dateTime": "2018-02-01T14:10:00Z"
        },
        "id": "weight2",
        "code": {
          "coding": [
            {
              "code": "29463-7",
              "system": "http://loinc.org",
              "display": "Body Weight"
            }
          ]
        },
        "subject": {
          "id": "pat1",
          "resourceType": "Patient"
        }
      }
    },
    {
      "resource": {
        "category": [
          {
            "coding": [
              {
                "code": "vital-signs",
                "system": "http://hl7.org/fhir/observation-category",
                "display": "Vital Signs"
              }
            ]
          }
        ],
        "meta": {
          "lastUpdated": "2019-04-26T13:53:11.632Z",
          "versionId": "1798"
        },
        "value": {
          "Quantity": {
            "code": "[lb_av]",
            "unit": "lbs",
            "value": 181,
            "system": "http://unitsofmeasure.org"
          }
        },
        "resourceType": "Observation",
        "status": "final",
        "effective": {
          "dateTime": "2018-05-05T14:10:00Z"
        },
        "id": "weight3",
        "code": {
          "coding": [
            {
              "code": "29463-7",
              "system": "http://loinc.org",
              "display": "Body Weight"
            }
          ]
        },
        "subject": {
          "id": "pat1",
          "resourceType": "Patient"
        }
      }
    },
    {
      "resource": {
        "category": [
          {
            "coding": [
              {
                "code": "vital-signs",
                "system": "http://hl7.org/fhir/observation-category",
                "display": "Vital Signs"
              }
            ]
          }
        ],
        "meta": {
          "lastUpdated": "2019-04-26T13:53:11.520Z",
          "versionId": "1796"
        },
        "value": {
          "Quantity": {
            "code": "[lb_av]",
            "unit": "lbs",
            "value": 173,
            "system": "http://unitsofmeasure.org"
          }
        },
        "resourceType": "Observation",
        "status": "final",
        "effective": {
          "dateTime": "2018-05-03T10:10:00Z"
        },
        "id": "weight",
        "code": {
          "coding": [
            {
              "code": "29463-7",
              "system": "http://loinc.org",
              "display": "Body Weight"
            }
          ]
        },
        "subject": {
          "id": "pat1",
          "resourceType": "Patient"
        }
      }
    }
  ],
  "total": 3
}

The same with /fhir/... endpoint.

[niquola]

will be fixed in 0.4.3