diff --git a/examples/insert_ephemeral_columns.ts b/examples/insert_ephemeral_columns.ts
index 756d12f..f0b257c 100644
--- a/examples/insert_ephemeral_columns.ts
+++ b/examples/insert_ephemeral_columns.ts
@@ -9,9 +9,9 @@ void (async () => {
     query: `
       CREATE OR REPLACE TABLE ${tableName}
       (
-        id          UInt64,
-        message     String DEFAULT message_raw,
-        message_raw String EPHEMERAL
+        id              UInt64,
+        message         String DEFAULT message_default,
+        message_default String EPHEMERAL
       )
       ENGINE MergeTree()
       ORDER BY (id)
@@ -23,17 +23,17 @@ void (async () => {
     values: [
       {
         id: '42',
-        message_raw: 'foo',
+        message_default: 'foo',
       },
       {
         id: '144',
-        message_raw: 'bar',
+        message_default: 'bar',
       },
     ],
     format: 'JSONEachRow',
     // The name of the ephemeral column has to be specified here
     // to trigger the default values logic for the rest of the columns
-    columns: ['message_raw'],
+    columns: ['id', 'message_default'],
   })
 
   const rows = await client.query({
diff --git a/packages/client-common/__tests__/integration/data_types.test.ts b/packages/client-common/__tests__/integration/data_types.test.ts
index cbc1760..0c6f0c5 100644
--- a/packages/client-common/__tests__/integration/data_types.test.ts
+++ b/packages/client-common/__tests__/integration/data_types.test.ts
@@ -4,7 +4,7 @@ import type {
 } from '@clickhouse/client-common'
 import { randomUUID } from '@test/utils/guid'
 import { createTableWithFields } from '../fixtures/table_with_fields'
-import { createTestClient, getRandomInt } from '../utils'
+import { createTestClient, getRandomInt, TestEnv, whenOnEnv } from '../utils'
 
 describe('data types', () => {
   let client: ClickHouseClient
@@ -504,6 +504,25 @@ describe('data types', () => {
     await insertAndAssert(table, values)
   })
 
+  // JSON cannot be used on a "modern" Cloud instance
+  whenOnEnv(TestEnv.LocalSingleNode, TestEnv.LocalCluster, TestEnv.Cloud).it(
+    'should work with JSON',
+    async () => {
+      const values = [
+        {
+          o: { a: 1, b: { c: 2, d: [1, 2, 3] } },
+        },
+        {
+          o: { a: 2, b: { c: 3, d: [4, 5, 6] } },
+        },
+      ]
+      const table = await createTableWithFields(client, `o Object('json')`, {
+        allow_experimental_object_type: 1,
+      })
+      await insertAndAssert(table, values)
+    },
+  )
+
   describe('Nested', () => {
     it('should work by default', async () => {
       const values = [