Servers - Start Major Version Upgrade Precheck

Service:

PostgreSQL

API Version:

2026-10-01

Start Major Version Upgrade Prechecks.

POST https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DBforPostgreSQL/flexibleServers/{serverName}/startMajorVersionUpgradePrecheck?api-version=2026-10-01

URI Parameters

Name	In	Required	Type	Description
resourceGroupName	path	True	string minLength: 1 maxLength: 90	The name of the resource group. The name is case insensitive.
serverName	path	True	string minLength: 3 maxLength: 63 pattern: ^[a-zA-Z0-9]+(-[a-zA-Z0-9]+)*	The name of the server.
subscriptionId	path	True	string (uuid)	The ID of the target subscription. The value must be an UUID.
api-version	query	True	string minLength: 1	The API version to use for this operation.

Request Body

Name	Required	Type	Description
targetVersion	True	string	The target major version to upgrade to.

Responses

Name	Type	Description
200 OK	StartMajorVersionUpgradePrecheckResponse	The request has succeeded. Headers x-ms-request-id: string
202 Accepted		Resource operation accepted. Headers Azure-AsyncOperation: string Location: string Retry-After: integer
Other Status Codes	ErrorResponse	An unexpected error response.

Security

azure_auth

Azure Active Directory OAuth2 Flow.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

Start a major version upgrade precheck validation for a PostgreSQL flexible server.

Sample request

HTTP

POST https://management.azure.com/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/exampleresourcegroup/providers/Microsoft.DBforPostgreSQL/flexibleServers/exampleserver/startMajorVersionUpgradePrecheck?api-version=2026-10-01

{
  "targetVersion": "18"
}

Sample response

Status code:

200

{
  "name": "pppppppp-pppp-pppp-pppp-pppppppppppp",
  "createTime": "2026-04-15T10:00:00Z",
  "status": "Succeeded"
}

Status code:

202

Location: https://management.azure.com/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/providers/Microsoft.DBforPostgreSQL/locations/westus2/operationResults/pppppppp-pppp-pppp-pppp-pppppppppppp?api-version=2026-10-01
Azure-AsyncOperation: https://management.azure.com/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/providers/Microsoft.DBforPostgreSQL/locations/westus2/azureAsyncOperation/pppppppp-pppp-pppp-pppp-pppppppppppp?api-version=2026-10-01

Definitions

Name	Description
ErrorAdditionalInfo	The resource management error additional info.
ErrorDetail	The error detail.
ErrorResponse	Error response
MajorVersionUpgradePrecheckStatus	The status of the major version upgrade precheck.
StartMajorVersionUpgradePrecheckRequest	Request model for starting a major version upgrade precheck.
StartMajorVersionUpgradePrecheckResponse	Response model for starting a major version upgrade precheck.

ErrorAdditionalInfo

Object

The resource management error additional info.

Name	Type	Description
info	object	The additional info.
type	string	The additional info type.

ErrorDetail

Object

The error detail.

Name	Type	Description
additionalInfo	ErrorAdditionalInfo[]	The error additional info.
code	string	The error code.
details	ErrorDetail[]	The error details.
message	string	The error message.
target	string	The error target.

ErrorResponse

Object

Error response

Name	Type	Description
error	ErrorDetail	The error object.

MajorVersionUpgradePrecheckStatus

Enumeration

The status of the major version upgrade precheck.

Value	Description
Validating	Executing prechecks against the source server
Succeeded	Validation succeeded
Failed	Validation failed
Canceled	Validation canceled

StartMajorVersionUpgradePrecheckRequest

Object

Request model for starting a major version upgrade precheck.

Name	Type	Description
targetVersion	string	The target major version to upgrade to.

StartMajorVersionUpgradePrecheckResponse

Object

Response model for starting a major version upgrade precheck.

Name	Type	Description
createTime	string (date-time)	The time when the precheck was created.
name	string	The precheck validation ID.
status	MajorVersionUpgradePrecheckStatus	The status of the precheck validation.