 [
   {
     "name": "region_id",
     "type": "bigint",
     "scale": -2147483648,
     "precision": -1,
     "default": 0,
     "primary": 0,
     "nullable": false
   },
    {
      "name": "job_id",
      "type": "bigint",
      "scale": -2147483648,
      "precision": -1,
      "primary": -1,
      "nullable": false
    },
    {
     "name": "element_id",
     "type": "varchar",
     "scale": -2147483648,
     "precision": -1,
     "default": 0,
     "primary": -1,
     "nullable": true
    },
    {
     "name": "element_type",
     "type": "varchar",
     "scale": -2147483648,
     "precision": -1,
     "default": 0,
     "primary": -1,
     "nullable": true
    },
    {
      "name": "start_key",
      "type": "varchar",
      "scale": -2147483648,
      "precision": -1,
      "default": 0,
      "primary": -1,
      "nullable": false
    },
    {
      "name": "end_key",
      "type": "varchar",
      "scale": -2147483648,
      "precision": -1,
      "default": 0,
      "primary": -1,
      "nullable": false
    },
    {
      "name": "ts",
      "type": "bigint",
      "scale": -2147483648,
      "precision": -1,
      "default": 0,
      "primary": -1,
      "nullable": false
    }
  ]
