diff --git a/schemas/2021-06-01-preview/Microsoft.Synapse.json b/schemas/2021-06-01-preview/Microsoft.Synapse.json
index 38ceaa131c..1a4eec9ab6 100644
--- a/schemas/2021-06-01-preview/Microsoft.Synapse.json
+++ b/schemas/2021-06-01-preview/Microsoft.Synapse.json
@@ -733,6 +733,9 @@
       "oneOf": [
         {
           "$ref": "#/definitions/ReadWriteDatabase"
+        },
+        {
+          "$ref": "#/definitions/ReadOnlyFollowingDatabase"
         }
       ],
       "properties": {
@@ -4595,6 +4598,43 @@
       },
       "description": "Purview Configuration"
     },
+    "ReadOnlyFollowingDatabase": {
+      "type": "object",
+      "properties": {
+        "kind": {
+          "type": "string",
+          "enum": [
+            "ReadOnlyFollowing"
+          ]
+        },
+        "properties": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/ReadOnlyFollowingDatabaseProperties"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Class representing the Kusto database properties."
+        }
+      },
+      "required": [
+        "kind"
+      ],
+      "description": "Class representing a read only following database."
+    },
+    "ReadOnlyFollowingDatabaseProperties": {
+      "type": "object",
+      "properties": {
+        "hotCachePeriod": {
+          "type": "string",
+          "format": "duration",
+          "description": "The time the data should be kept in cache for fast queries in TimeSpan."
+        }
+      },
+      "description": "Class representing the Kusto database properties."
+    },
     "ReadWriteDatabase": {
       "type": "object",
       "properties": {
@@ -6381,6 +6421,9 @@
       "oneOf": [
         {
           "$ref": "#/definitions/ReadWriteDatabase"
+        },
+        {
+          "$ref": "#/definitions/ReadOnlyFollowingDatabase"
         }
       ],
       "properties": {
diff --git a/schemas/2021-06-01/Microsoft.Synapse.json b/schemas/2021-06-01/Microsoft.Synapse.json
index e2f5849998..366a77ff75 100644
--- a/schemas/2021-06-01/Microsoft.Synapse.json
+++ b/schemas/2021-06-01/Microsoft.Synapse.json
@@ -3823,8 +3823,7 @@
           "oneOf": [
             {
               "type": "string",
-              "pattern": "^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}$",
-              "default": ""
+              "pattern": "^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}$"
             },
             {
               "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
@@ -4085,8 +4084,7 @@
           "oneOf": [
             {
               "type": "string",
-              "pattern": "^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}$",
-              "default": ""
+              "pattern": "^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}$"
             },
             {
               "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"