diff --git a/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json b/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json
new file mode 100644
index 0000000000..ad98d4fd1e
--- /dev/null
+++ b/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json
@@ -0,0 +1,679 @@
+{
+  "id": "https://schema.management.azure.com/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json#",
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Microsoft.DBforPostgreSQL",
+  "description": "Microsoft DBforPostgreSQL Resource Types",
+  "resourceDefinitions": {
+    "flexibleServers": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "location": {
+          "type": "string",
+          "description": "The geo-location where the resource lives"
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the server."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/ServerProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a server."
+        },
+        "resources": {
+          "type": "array",
+          "items": {
+            "oneOf": [
+              {
+                "$ref": "#/definitions/flexibleServers_databases_childResource"
+              },
+              {
+                "$ref": "#/definitions/flexibleServers_firewallRules_childResource"
+              },
+              {
+                "$ref": "#/definitions/flexibleServers_configurations_childResource"
+              }
+            ]
+          }
+        },
+        "sku": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/Sku"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Sku information related properties of a server."
+        },
+        "tags": {
+          "oneOf": [
+            {
+              "type": "object",
+              "additionalProperties": {
+                "type": "string"
+              },
+              "properties": {}
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Resource tags."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "Microsoft.DBforPostgreSQL/flexibleServers"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "location",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers"
+    },
+    "flexibleServers_configurations": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the server configuration."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/ConfigurationProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a configuration."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "Microsoft.DBforPostgreSQL/flexibleServers/configurations"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/configurations"
+    },
+    "flexibleServers_databases": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the database."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/DatabaseProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a database."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "Microsoft.DBforPostgreSQL/flexibleServers/databases"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/databases"
+    },
+    "flexibleServers_firewallRules": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the server firewall rule."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/FirewallRuleProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a server firewall rule."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "Microsoft.DBforPostgreSQL/flexibleServers/firewallRules"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/firewallRules"
+    }
+  },
+  "definitions": {
+    "Backup": {
+      "type": "object",
+      "properties": {
+        "backupRetentionDays": {
+          "oneOf": [
+            {
+              "type": "integer",
+              "default": "7"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Backup retention days for the server."
+        },
+        "geoRedundantBackup": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "Enabled",
+                "Disabled"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "A value indicating whether Geo-Redundant backup is enabled on the server."
+        }
+      },
+      "description": "Backup properties of a server"
+    },
+    "ConfigurationProperties": {
+      "type": "object",
+      "properties": {
+        "source": {
+          "type": "string",
+          "description": "Source of the configuration."
+        },
+        "value": {
+          "type": "string",
+          "description": "Value of the configuration."
+        }
+      },
+      "description": "The properties of a configuration."
+    },
+    "DatabaseProperties": {
+      "type": "object",
+      "properties": {
+        "charset": {
+          "type": "string",
+          "description": "The charset of the database."
+        },
+        "collation": {
+          "type": "string",
+          "description": "The collation of the database."
+        }
+      },
+      "description": "The properties of a database."
+    },
+    "FirewallRuleProperties": {
+      "type": "object",
+      "properties": {
+        "endIpAddress": {
+          "oneOf": [
+            {
+              "type": "string",
+              "pattern": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The end IP address of the server firewall rule. Must be IPv4 format."
+        },
+        "startIpAddress": {
+          "oneOf": [
+            {
+              "type": "string",
+              "pattern": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The start IP address of the server firewall rule. Must be IPv4 format."
+        }
+      },
+      "required": [
+        "endIpAddress",
+        "startIpAddress"
+      ],
+      "description": "The properties of a server firewall rule."
+    },
+    "flexibleServers_configurations_childResource": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the server configuration."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/ConfigurationProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a configuration."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "configurations"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/configurations"
+    },
+    "flexibleServers_databases_childResource": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the database."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/DatabaseProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a database."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "databases"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/databases"
+    },
+    "flexibleServers_firewallRules_childResource": {
+      "type": "object",
+      "properties": {
+        "apiVersion": {
+          "type": "string",
+          "enum": [
+            "2022-01-20-preview"
+          ]
+        },
+        "name": {
+          "type": "string",
+          "description": "The name of the server firewall rule."
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/FirewallRuleProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The properties of a server firewall rule."
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "firewallRules"
+          ]
+        }
+      },
+      "required": [
+        "apiVersion",
+        "name",
+        "properties",
+        "type"
+      ],
+      "description": "Microsoft.DBforPostgreSQL/flexibleServers/firewallRules"
+    },
+    "HighAvailability": {
+      "type": "object",
+      "properties": {
+        "mode": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "Disabled",
+                "ZoneRedundant",
+                "SameZone"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The HA mode for the server."
+        },
+        "standbyAvailabilityZone": {
+          "type": "string",
+          "default": "",
+          "description": "availability zone information of the standby."
+        }
+      },
+      "description": "High availability properties of a server"
+    },
+    "MaintenanceWindow": {
+      "type": "object",
+      "properties": {
+        "customWindow": {
+          "type": "string",
+          "default": "Disabled",
+          "description": "indicates whether custom window is enabled or disabled"
+        },
+        "dayOfWeek": {
+          "oneOf": [
+            {
+              "type": "integer",
+              "default": "0"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "day of week for maintenance window"
+        },
+        "startHour": {
+          "oneOf": [
+            {
+              "type": "integer",
+              "default": "0"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "start hour for maintenance window"
+        },
+        "startMinute": {
+          "oneOf": [
+            {
+              "type": "integer",
+              "default": "0"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "start minute for maintenance window"
+        }
+      },
+      "description": "Maintenance window properties of a server."
+    },
+    "Network": {
+      "type": "object",
+      "properties": {
+        "delegatedSubnetResourceId": {
+          "type": "string",
+          "default": "",
+          "description": "delegated subnet arm resource id."
+        },
+        "privateDnsZoneArmResourceId": {
+          "type": "string",
+          "default": "",
+          "description": "private dns zone arm resource id."
+        }
+      },
+      "description": "Network properties of a server"
+    },
+    "ServerProperties": {
+      "type": "object",
+      "properties": {
+        "administratorLogin": {
+          "type": "string",
+          "description": "The administrator's login name of a server. Can only be specified when the server is being created (and is required for creation)."
+        },
+        "administratorLoginPassword": {
+          "type": "string",
+          "format": "password",
+          "description": "The administrator login password (required for server creation)."
+        },
+        "availabilityZone": {
+          "type": "string",
+          "default": "",
+          "description": "availability zone information of the server."
+        },
+        "backup": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/Backup"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Backup properties of a server"
+        },
+        "createMode": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "Default",
+                "Create",
+                "Update",
+                "PointInTimeRestore"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The mode to create a new PostgreSQL server."
+        },
+        "highAvailability": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/HighAvailability"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "High availability properties of a server"
+        },
+        "maintenanceWindow": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/MaintenanceWindow"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Maintenance window properties of a server."
+        },
+        "network": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/Network"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Network properties of a server"
+        },
+        "pointInTimeUTC": {
+          "type": "string",
+          "format": "date-time",
+          "description": "Restore point creation time (ISO8601 format), specifying the time to restore from. It's required when 'createMode' is 'PointInTimeRestore'."
+        },
+        "sourceServerResourceId": {
+          "type": "string",
+          "description": "The source server resource ID to restore from. It's required when 'createMode' is 'PointInTimeRestore'."
+        },
+        "storage": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/Storage"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Storage properties of a server"
+        },
+        "version": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "13",
+                "12",
+                "11"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "PostgreSQL Server version."
+        }
+      },
+      "description": "The properties of a server."
+    },
+    "Sku": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string",
+          "description": "The name of the sku, typically, tier + family + cores, e.g. Standard_D4s_v3."
+        },
+        "tier": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "Burstable",
+                "GeneralPurpose",
+                "MemoryOptimized"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The tier of the particular SKU, e.g. Burstable."
+        }
+      },
+      "required": [
+        "name",
+        "tier"
+      ],
+      "description": "Sku information related properties of a server."
+    },
+    "Storage": {
+      "type": "object",
+      "properties": {
+        "storageSizeGB": {
+          "oneOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Max storage allowed for a server."
+        }
+      },
+      "description": "Storage properties of a server"
+    }
+  }
+}
\ No newline at end of file
diff --git a/schemas/common/autogeneratedResources.json b/schemas/common/autogeneratedResources.json
index fc92fad023..c3a9534f8e 100644
--- a/schemas/common/autogeneratedResources.json
+++ b/schemas/common/autogeneratedResources.json
@@ -6583,6 +6583,18 @@
         {
           "$ref": "https://schema.management.azure.com/schemas/2021-06-01-preview/Microsoft.DBforPostgreSQL.json#/resourceDefinitions/flexibleServers_firewallRules"
         },
+        {
+          "$ref": "https://schema.management.azure.com/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json#/resourceDefinitions/flexibleServers"
+        },
+        {
+          "$ref": "https://schema.management.azure.com/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json#/resourceDefinitions/flexibleServers_configurations"
+        },
+        {
+          "$ref": "https://schema.management.azure.com/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json#/resourceDefinitions/flexibleServers_databases"
+        },
+        {
+          "$ref": "https://schema.management.azure.com/schemas/2022-01-20-preview/Microsoft.DBforPostgreSQL.json#/resourceDefinitions/flexibleServers_firewallRules"
+        },
         {
           "$ref": "https://schema.management.azure.com/schemas/2020-08-08-preview/Microsoft.DelegatedNetwork.json#/resourceDefinitions/controller"
         },