diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca4471a397a..9f13f60f74b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 (Add entries below in the order of server, console, cli, docs, others)
 
+- server: disable mutation for materialised views (#6688)
 - server: set `tracecontext` and `userInfo` for DML actions on Postgres sources
 - cli: add progress bar for `migrate apply` command (#4795)
 
diff --git a/server/src-rsr/pg_table_metadata.sql b/server/src-rsr/pg_table_metadata.sql
index 77affff59b5..1ce36bac426 100644
--- a/server/src-rsr/pg_table_metadata.sql
+++ b/server/src-rsr/pg_table_metadata.sql
@@ -10,7 +10,9 @@ SELECT
     -- Note: unique_constraints does NOT include primary key constraints!
     'unique_constraints', coalesce(unique_constraints.info, '[]'),
     'foreign_keys', coalesce(foreign_key_constraints.info, '[]'),
-    'view_info', CASE "table".relkind WHEN 'v' THEN jsonb_build_object(
+    -- Note: for views and materialized views, we are asking Postgres if it is mutable or not
+    --       and for any other case, we are assuming it to be mutable.
+    'view_info', CASE WHEN "table".relkind IN ('v', 'm') THEN jsonb_build_object(
       'is_updatable', ((pg_catalog.pg_relation_is_updatable("table".oid, true) & 4) = 4),
       'is_insertable', ((pg_catalog.pg_relation_is_updatable("table".oid, true) & 8) = 8),
       'is_deletable', ((pg_catalog.pg_relation_is_updatable("table".oid, true) & 16) = 16)
diff --git a/server/tests-py/queries/v1/track_table/track_untrack_materialized_view.yaml b/server/tests-py/queries/v1/track_table/track_untrack_materialized_view.yaml
index 6a7484487ce..48c9de2944f 100644
--- a/server/tests-py/queries/v1/track_table/track_untrack_materialized_view.yaml
+++ b/server/tests-py/queries/v1/track_table/track_untrack_materialized_view.yaml
@@ -38,6 +38,40 @@
         - title
         - name
 
+# Introspecting the GraphQL schema for query field for the materialized view
+- description: Checking query fields by introspection
+  url: /v1/graphql
+  status: 200
+  response:
+    data:
+      __type: 
+        name: "articles"
+  query:
+    query: "query checkQuery {__type(name:\"articles\"){name}}"
+
+# Test for checking if the mutation field doesn't exist for the materialized view
+- description: Checking mutation fields for materialized view
+  url: /v1/graphql
+  status: 200
+  response:
+    errors:
+      - extensions: 
+          path: "$"
+          code: "validation-failed"
+        message: "no mutations exist"
+  query:
+    query: "mutation MyMutation { delete_articles(where: {title: {_eq: \"Lorem ipsum dolor sit amet\"}}) { affected_rows }}"
+
+# Introspecting the GraphQL schema for mutation fields for the materialized view
+- description: Checking mutation fields by introspection
+  url: /v1/graphql
+  status: 200
+  response:
+    data:
+      __type: null
+  query:
+    query: "query checkMutation {__type(name:\"articles_insert_input\"){name}}"
+
 - description: Untrack materialized view
   url: /v1/query
   status: 200