diff --git a/schemas/2018-06-01/Microsoft.DataFactory.json b/schemas/2018-06-01/Microsoft.DataFactory.json
index 0c72cff6d8..3418699e27 100644
--- a/schemas/2018-06-01/Microsoft.DataFactory.json
+++ b/schemas/2018-06-01/Microsoft.DataFactory.json
@@ -9376,43 +9376,8 @@
       ],
       "description": "The Azure Data Factory nested object which identifies data within different data stores, such as tables, files, folders, and documents."
     },
-    "DatasetBZip2Compression": {
-      "type": "object",
-      "properties": {
-        "type": {
-          "type": "string",
-          "enum": [
-            "BZip2"
-          ]
-        }
-      },
-      "required": [
-        "type"
-      ],
-      "description": "The BZip2 compression method used on a dataset."
-    },
     "DatasetCompression": {
       "type": "object",
-      "oneOf": [
-        {
-          "$ref": "#/definitions/DatasetBZip2Compression"
-        },
-        {
-          "$ref": "#/definitions/DatasetGZipCompression"
-        },
-        {
-          "$ref": "#/definitions/DatasetDeflateCompression"
-        },
-        {
-          "$ref": "#/definitions/DatasetZipDeflateCompression"
-        },
-        {
-          "$ref": "#/definitions/DatasetTarCompression"
-        },
-        {
-          "$ref": "#/definitions/DatasetTarGZipCompression"
-        }
-      ],
       "properties": {
         "additionalProperties": {
           "oneOf": [
@@ -9429,29 +9394,22 @@
             }
           ],
           "description": "Unmatched properties from the message are deserialized this collection"
-        }
-      },
-      "description": "The compression method used on a dataset."
-    },
-    "DatasetDeflateCompression": {
-      "type": "object",
-      "properties": {
+        },
         "level": {
           "type": "object",
           "properties": {},
-          "description": "The Deflate compression level."
+          "description": "The dataset compression level. Type: string (or Expression with resultType string)."
         },
         "type": {
-          "type": "string",
-          "enum": [
-            "Deflate"
-          ]
+          "type": "object",
+          "properties": {},
+          "description": "Type of dataset compression. Type: string (or Expression with resultType string)."
         }
       },
       "required": [
         "type"
       ],
-      "description": "The Deflate compression method used on a dataset."
+      "description": "The compression method used on a dataset."
     },
     "DatasetFolder": {
       "type": "object",
@@ -9463,26 +9421,6 @@
       },
       "description": "The folder that this Dataset is in. If not specified, Dataset will appear at the root level."
     },
-    "DatasetGZipCompression": {
-      "type": "object",
-      "properties": {
-        "level": {
-          "type": "object",
-          "properties": {},
-          "description": "The GZip compression level."
-        },
-        "type": {
-          "type": "string",
-          "enum": [
-            "GZip"
-          ]
-        }
-      },
-      "required": [
-        "type"
-      ],
-      "description": "The GZip compression method used on a dataset."
-    },
     "DatasetLocation": {
       "type": "object",
       "oneOf": [
@@ -9649,61 +9587,6 @@
       },
       "description": "The format definition of a storage."
     },
-    "DatasetTarCompression": {
-      "type": "object",
-      "properties": {
-        "type": {
-          "type": "string",
-          "enum": [
-            "Tar"
-          ]
-        }
-      },
-      "required": [
-        "type"
-      ],
-      "description": "The Tar archive method used on a dataset."
-    },
-    "DatasetTarGZipCompression": {
-      "type": "object",
-      "properties": {
-        "level": {
-          "type": "object",
-          "properties": {},
-          "description": "The TarGZip compression level."
-        },
-        "type": {
-          "type": "string",
-          "enum": [
-            "TarGZip"
-          ]
-        }
-      },
-      "required": [
-        "type"
-      ],
-      "description": "The TarGZip compression method used on a dataset."
-    },
-    "DatasetZipDeflateCompression": {
-      "type": "object",
-      "properties": {
-        "level": {
-          "type": "object",
-          "properties": {},
-          "description": "The ZipDeflate compression level."
-        },
-        "type": {
-          "type": "string",
-          "enum": [
-            "ZipDeflate"
-          ]
-        }
-      },
-      "required": [
-        "type"
-      ],
-      "description": "The ZipDeflate compression method used on a dataset."
-    },
     "Db2LinkedService": {
       "type": "object",
       "properties": {
@@ -13044,22 +12927,6 @@
     "Flowlet": {
       "type": "object",
       "properties": {
-        "additionalProperties": {
-          "oneOf": [
-            {
-              "type": "object",
-              "additionalProperties": {
-                "type": "object",
-                "properties": {}
-              },
-              "properties": {}
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "Unmatched properties from the message are deserialized this collection"
-        },
         "type": {
           "type": "string",
           "enum": [
@@ -13086,10 +12953,6 @@
     "FlowletTypeProperties": {
       "type": "object",
       "properties": {
-        "additionalProperties": {
-          "type": "object",
-          "properties": {}
-        },
         "script": {
           "type": "string",
           "description": "Flowlet script."