curl -X PATCH 'https://app.memorylake.cn/openapi/memorylake/api/v3/db-connections/dbconn-7c1e9a4b2d6f4a8e9b3c5d7f1a2b4c6d' \
  -H 'Authorization: Bearer sk_xxxxxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "name": "Sales warehouse (replica)"
  }'

curl -X PATCH 'https://app.memorylake.cn/openapi/memorylake/api/v3/db-connections/dbconn-7c1e9a4b2d6f4a8e9b3c5d7f1a2b4c6d' \
  -H 'Authorization: Bearer sk_xxxxxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "username": "analytics_ro_2026",
    "password": "your-new-database-password"
  }'

{
  "success": true,
  "data": {
    "id": "dbconn-7c1e9a4b2d6f4a8e9b3c5d7f1a2b4c6d",
    "name": "Sales warehouse (replica)",
    "description": "Read-only replica of the sales database",
    "host": "pg.internal.example.com",
    "port": 5432,
    "username": "analytics_ro",
    "database": "sales",
    "custom_id": "sales-warehouse",
    "datasource_count": 1,
    "created_at": "2026-09-18T07:42:17.139Z",
    "updated_at": "2026-09-20T03:15:42.508Z"
  }
}