{
  "version": "4.0.0",
  "last_updated": "2025-10-15T11:54:20.791Z",
  "source": "GeoThai Team (https://github.com/GeoThai/data.git)",
  "stats": {
    "provinces": 77,
    "districts": 928,
    "subdistricts": 7436,
    "postal_codes": 954
  },
  "description": "Version 4: Ultra-fast lookup optimized structure with denormalized data, embedded hierarchies, and multiple access patterns",
  "features": [
    "Denormalized hierarchical structure for minimal lookups",
    "Embedded full province/district/subdistrict relationships",
    "Fast postal code to complete address lookup",
    "Case-insensitive search index with normalized keys",
    "Single-file operations for common queries",
    "Pre-computed lowercase keys for search optimization"
  ]
}