it takes very long to create a datasource in apache druid even for a very small data set DATASET:

{
  "user_id": 101,
  "name": "John Doe",
  "skills": [
    "Python",
    "SQL",
    "Java"
  ],
  "projects": [
    {
      "project_id": 1,
      "project_name": "Data Pipeline"
    },
    {
      "project_id": 2,
      "project_name": "Web Scraper"
    }
  ]
}