message: ARM ID annotations for Postgres
diff: },
  "sourceServerResourceId": {
  "type": "string",
  + "format": "arm-id",
  + "x-ms-arm-id-details": {
  + "allowedResources": [
  + {
  + "type": "Microsoft.DBforPostgreSQL/flexibleServers"
  + }
  + ]
  + },
  "description": "The source server resource ID to restore from. It's required when 'createMode' is 'PointInTimeRestore'.",
  "x-ms-mutability": [
  "create"
  },
  "delegatedSubnetResourceId": {
  "type": "string",
  + "format": "arm-id",
  + "x-ms-arm-id-details": {
  + "allowedResources": [
  + {
  + "type": "Microsoft.Network/virtualNetworks/subnets"
  + }
  + ]
  + },
  "default": "",
  "description": "delegated subnet arm resource id.",
  "x-ms-mutability": [
  },
  "privateDnsZoneArmResourceId": {
  "type": "string",
  + "format": "arm-id",
  + "x-ms-arm-id-details": {
  + "allowedResources": [
  + {
  + "type": "Microsoft.Network/privateDnsZones"
  + }
  + ]
  + },
  "default": "",
  "description": "private dns zone arm resource id.",
  "x-ms-mutability": [
  