{
  "name": "ibge.ppm",
  "schema_version": "1.0",
  "effective_from": "0.10.0",
  "breaking_policy": "major",
  "primary_key": [
    "ano",
    "especie",
    "localidade"
  ],
  "required_columns": [
    "ano",
    "especie",
    "unidade",
    "fonte"
  ],
  "dtypes": {
    "ano": "int",
    "localidade": "str",
    "localidade_cod": "int",
    "especie": "str",
    "valor": "float",
    "unidade": "str",
    "fonte": "str"
  },
  "nullable": {
    "ano": false,
    "localidade": true,
    "localidade_cod": true,
    "especie": false,
    "valor": true,
    "unidade": false,
    "fonte": false
  },
  "columns": [
    {
      "name": "ano",
      "type": "int",
      "nullable": false,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": 1974,
      "max_value": null
    },
    {
      "name": "localidade",
      "type": "str",
      "nullable": true,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": null,
      "max_value": null
    },
    {
      "name": "localidade_cod",
      "type": "int",
      "nullable": true,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": null,
      "max_value": null
    },
    {
      "name": "especie",
      "type": "str",
      "nullable": false,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": null,
      "max_value": null
    },
    {
      "name": "valor",
      "type": "float",
      "nullable": true,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": 0,
      "max_value": null
    },
    {
      "name": "unidade",
      "type": "str",
      "nullable": false,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": null,
      "max_value": null
    },
    {
      "name": "fonte",
      "type": "str",
      "nullable": false,
      "unit": null,
      "stable": true,
      "deprecated": false,
      "description": "",
      "min_value": null,
      "max_value": null
    }
  ],
  "constraints": {
    "no_duplicates": true,
    "ano_min": 1974,
    "valor_min": 0
  },
  "guarantees": [
    "Column names never change (additions only)",
    "'ano' is always a valid year (>= 1974)",
    "Numeric values are always >= 0",
    "'fonte' is always 'ibge_ppm'"
  ]
}
