{
  "parameters": {
    "subscriptionId": "ffffffff-ffff-ffff-ffff-ffffffffffff",
    "resourceGroupName": "exampleresourcegroup",
    "serverName": "exampleserver",
    "api-version": "2026-04-01-preview",
    "body": {
      "targetVersion": "18"
    }
  },
  "responses": {
    "200": {
      "body": {
        "name": "pppppppp-pppp-pppp-pppp",
        "createTime": "2026-04-15T10:00:00Z",
        "status": "Succeeded"
      }
    },
    "202": {
      "headers": {
        "Location": "https://management.azure.com/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/providers/Microsoft.DBforPostgreSQL/locations/westus2/operationResults/pppppppp-pppp-pppp-pppp?api-version=2026-04-01-preview",
        "Azure-AsyncOperation": "https://management.azure.com/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/providers/Microsoft.DBforPostgreSQL/locations/westus2/azureAsyncOperation/pppppppp-pppp-pppp-pppp?api-version=2026-04-01-preview"
      }
    }
  },
  "operationId": "Servers_MajorVersionUpgradePrecheck",
  "title": "Create a major version upgrade precheck validation for a PostgreSQL flexible server."
}