Update example for Replica Switchover in PostgreSQL (#44102)

* update example

* update patch model

* Trigger PR update

* Update description to be general for new property

Author: nasc17

specification/postgresql/DBforPostgreSQL.Management/examples/2026-04-01-preview/ServersPromoteReplicaAsForcedSwitchover.json

@@ -6,7 +6,8 @@
         "replica": {
           "promoteMode": "Switchover",
           "promoteOption": "Forced"
-        }
+        },
+        "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/exampleresourcegroup/providers/Microsoft.DBforPostgreSQL/flexibleServers/examplesourceserver"
       }
     },
     "resourceGroupName": "exampleresourcegroup",

specification/postgresql/DBforPostgreSQL.Management/examples/2026-04-01-preview/ServersPromoteReplicaAsPlannedSwitchover.json

@@ -6,7 +6,8 @@
         "replica": {
           "promoteMode": "Switchover",
           "promoteOption": "Planned"
-        }
+        },
+        "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/exampleresourcegroup/providers/Microsoft.DBforPostgreSQL/flexibleServers/examplesourceserver"
       }
     },
     "resourceGroupName": "exampleresourcegroup",

specification/postgresql/DBforPostgreSQL.Management/models.tsp

@@ -3424,6 +3424,17 @@ model ServerPropertiesForPatch {
   @visibility(Lifecycle.Update)
   createMode?: CreateModeForPatch;
 
+  /**
+   * Identifier of the server to be used as the source of the new server.
+   */
+  @added(Versions.v2026_04_01)
+  @visibility(Lifecycle.Update)
+  sourceServerResourceId?: armResourceIdentifier<[
+    {
+      type: "Microsoft.DBforPostgreSQL/flexibleServers";
+    }
+  ]>;
+
   /**
    * Role of the server in a replication set.
    */

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/preview/2026-04-01-preview/examples/ServersPromoteReplicaAsForcedSwitchover.json

@@ -6,7 +6,8 @@
         "replica": {
           "promoteMode": "Switchover",
           "promoteOption": "Forced"
-        }
+        },
+        "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/exampleresourcegroup/providers/Microsoft.DBforPostgreSQL/flexibleServers/examplesourceserver"
       }
     },
     "resourceGroupName": "exampleresourcegroup",

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/preview/2026-04-01-preview/examples/ServersPromoteReplicaAsPlannedSwitchover.json

@@ -6,7 +6,8 @@
         "replica": {
           "promoteMode": "Switchover",
           "promoteOption": "Planned"
-        }
+        },
+        "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/exampleresourcegroup/providers/Microsoft.DBforPostgreSQL/flexibleServers/examplesourceserver"
       }
     },
     "resourceGroupName": "exampleresourcegroup",

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/preview/2026-04-01-preview/openapi.json

@@ -9588,6 +9588,21 @@
             "update"
           ]
         },
+        "sourceServerResourceId": {
+          "type": "string",
+          "format": "arm-id",
+          "description": "Identifier of the server to be used as the source of the new server.",
+          "x-ms-mutability": [
+            "update"
+          ],
+          "x-ms-arm-id-details": {
+            "allowedResources": [
+              {
+                "type": "Microsoft.DBforPostgreSQL/flexibleServers"
+              }
+            ]
+          }
+        },
         "replicationRole": {
           "$ref": "#/definitions/ReplicationRole",
           "description": "Role of the server in a replication set."