{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "allOf": [{ "$ref": "#/$defs/TableSchema" }],
    "$defs": {
        "TableSchema": {
            "type": "object",
            "allOf": [{ "$ref": "#/$defs/JsonSchema" }],
            "properties": {
                "$schema": { "$ref": "#/$defs/Profile" },
                "title": { "$ref": "#/$defs/Title" },
                "description": { "$ref": "#/$defs/Description" },
                "properties": { "$ref": "#/$defs/Properties" },
                "required": { "$ref": "#/$defs/Required" },
                "allRequired": { "$ref": "#/$defs/AllRequired" },
                "missingValues": { "$ref": "#/$defs/MissingValues" },
                "primaryKey": { "$ref": "#/$defs/PrimaryKey" },
                "uniqueKeys": { "$ref": "#/$defs/UniqueKeys" },
                "foreignKeys": { "$ref": "#/$defs/ForeignKeys" }
            }
        },
        "JsonSchema": {
            "$ref": "https://json-schema.org/draft/2020-12/schema"
        },
        "Profile": {
            "$ref": "#/$defs/ExternalPath"
        },
        "Title": {
            "type": "string"
        },
        "Description": {
            "type": "string"
        },
        "Required": {
            "type": "array",
            "items": { "type": "string" }
        },
        "AllRequired": {
            "type": "boolean"
        },
        "Properties": {
            "type": "object",
            "additionalProperties": {
                "$ref": "#/$defs/ColumnProperty"
            }
        },
        "ColumnProperty": {
            "type": "object",
            "properties": {
                "type": {},
                "title": { "$ref": "#/$defs/Title" },
                "description": { "$ref": "#/$defs/Description" },
                "rdfType": { "$ref": "#/$defs/RdfType" },
                "enum": { "$ref": "#/$defs/UnknownEnum" },
                "const": { "$ref": "#/$defs/UnknownConst" },
                "default": { "$ref": "#/$defs/UnknownDefault" },
                "examples": { "$ref": "#/$defs/UnknownExamples" },
                "missingValues": { "$ref": "#/$defs/MissingValues" }
            },
            "allOf": [
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/BooleanType" } } },
                    "then": { "$ref": "#/$defs/BooleanColumnProperty" }
                },
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/IntegerType" } } },
                    "then": { "$ref": "#/$defs/IntegerColumnPropertyGroup" }
                },
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/NumberType" } } },
                    "then": { "$ref": "#/$defs/NumberColumnProperty" }
                },
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/StringType" } } },
                    "then": { "$ref": "#/$defs/StringColumnPropertyGroup" }
                },
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/ArrayType" } } },
                    "then": { "$ref": "#/$defs/ArrayColumnProperty" }
                },
                {
                    "if": { "properties": { "type": { "$ref": "#/$defs/ObjectType" } } },
                    "then": { "$ref": "#/$defs/ObjectColumnPropertyGroup" }
                }
            ]
        },
        "IntegerColumnPropertyGroup": {
            "allOf": [
                {
                    "if": { "not": { "required": ["format"] } },
                    "then": { "$ref": "#/$defs/IntegerColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "categorical" } } },
                    "then": { "$ref": "#/$defs/IntegerCategoricalColumnProperty" }
                }
            ]
        },
        "StringColumnPropertyGroup": {
            "properties": {
                "format": {
                    "enum": [
                        "categorical",
                        "decimal",
                        "list",
                        "url",
                        "email",
                        "date",
                        "time",
                        "date-time",
                        "duration",
                        "wkt",
                        "wkb",
                        "hex",
                        "base64"
                    ]
                }
            },
            "allOf": [
                {
                    "if": { "not": { "required": ["format"] } },
                    "then": { "$ref": "#/$defs/StringColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "categorical" } } },
                    "then": { "$ref": "#/$defs/StringCategoricalColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "decimal" } } },
                    "then": { "$ref": "#/$defs/DecimalColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "list" } } },
                    "then": { "$ref": "#/$defs/ListColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "hex" } } },
                    "then": { "$ref": "#/$defs/HexColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "base64" } } },
                    "then": { "$ref": "#/$defs/Base64ColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "email" } } },
                    "then": { "$ref": "#/$defs/EmailColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "url" } } },
                    "then": { "$ref": "#/$defs/UrlColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "date-time" } } },
                    "then": { "$ref": "#/$defs/DateTimeColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "date" } } },
                    "then": { "$ref": "#/$defs/DateColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "time" } } },
                    "then": { "$ref": "#/$defs/TimeColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "duration" } } },
                    "then": { "$ref": "#/$defs/DurationColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "wkt" } } },
                    "then": { "$ref": "#/$defs/WktColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "wkb" } } },
                    "then": { "$ref": "#/$defs/WkbColumnProperty" }
                }
            ]
        },
        "ObjectColumnPropertyGroup": {
            "properties": {
                "format": {
                    "enum": ["geojson", "topojson"]
                }
            },
            "allOf": [
                {
                    "if": { "not": { "required": ["format"] } },
                    "then": { "$ref": "#/$defs/ObjectColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "geojson" } } },
                    "then": { "$ref": "#/$defs/GeojsonColumnProperty" }
                },
                {
                    "if": { "properties": { "format": { "const": "topojson" } } },
                    "then": { "$ref": "#/$defs/TopojsonColumnProperty" }
                }
            ]
        },
        "BooleanColumnProperty": {
            "properties": {
                "type": { "$ref": "#/$defs/BooleanType" },
                "enum": { "$ref": "#/$defs/BooleanEnum" },
                "const": { "$ref": "#/$defs/BooleanConst" },
                "default": { "$ref": "#/$defs/BooleanDefault" },
                "examples": { "$ref": "#/$defs/BooleanExamples" },
                "missingValues": { "$ref": "#/$defs/MissingValues" },
                "trueValues": { "$ref": "#/$defs/TrueValues" },
                "falseValues": { "$ref": "#/$defs/FalseValues" }
            }
        },
        "BaseIntegerColumnProperty": {
            "properties": {
                "type": { "$ref": "#/$defs/IntegerType" },
                "enum": { "$ref": "#/$defs/IntegerEnum" },
                "const": { "$ref": "#/$defs/IntegerConst" },
                "default": { "$ref": "#/$defs/IntegerDefault" },
                "examples": { "$ref": "#/$defs/IntegerExamples" },
                "missingValues": { "$ref": "#/$defs/MissingValues" },
                "minimum": { "$ref": "#/$defs/IntegerMinimum" },
                "maximum": { "$ref": "#/$defs/IntegerMaximum" },
                "exclusiveMinimum": { "$ref": "#/$defs/IntegerExclusiveMinimum" },
                "exclusiveMaximum": { "$ref": "#/$defs/IntegerExclusiveMaximum" },
                "multipleOf": { "$ref": "#/$defs/IntegerMultipleOf" },
                "groupChar": { "$ref": "#/$defs/GroupChar" },
                "withText": { "type": "boolean" },
                "categories": { "$ref": "#/$defs/IntegerCategories" },
                "categoriesOrdered": { "type": "boolean" }
            }
        },
        "IntegerColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseIntegerColumnProperty" }]
        },
        "IntegerCategoricalColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseIntegerColumnProperty" }],
            "properties": {
                "format": { "const": "categorical" },
                "categories": { "$ref": "#/$defs/IntegerCategories" },
                "withOrder": { "type": "boolean" }
            }
        },
        "NumberColumnProperty": {
            "properties": {
                "type": { "$ref": "#/$defs/NumberType" },
                "enum": { "$ref": "#/$defs/NumberEnum" },
                "const": { "$ref": "#/$defs/NumberConst" },
                "default": { "$ref": "#/$defs/NumberDefault" },
                "examples": { "$ref": "#/$defs/NumberExamples" },
                "missingValues": { "$ref": "#/$defs/MissingValues" },
                "minimum": { "$ref": "#/$defs/NumberMinimum" },
                "maximum": { "$ref": "#/$defs/NumberMaximum" },
                "exclusiveMinimum": { "$ref": "#/$defs/NumberExclusiveMinimum" },
                "exclusiveMaximum": { "$ref": "#/$defs/NumberExclusiveMaximum" },
                "multipleOf": { "$ref": "#/$defs/NumberMultipleOf" },
                "decimalChar": { "$ref": "#/$defs/DecimalChar" },
                "groupChar": { "$ref": "#/$defs/GroupChar" },
                "withText": { "type": "boolean" }
            }
        },
        "BaseStringColumnProperty": {
            "properties": {
                "type": { "$ref": "#/$defs/StringType" },
                "enum": { "$ref": "#/$defs/StringEnum" },
                "const": { "$ref": "#/$defs/StringConst" },
                "default": { "$ref": "#/$defs/StringDefault" },
                "examples": { "$ref": "#/$defs/StringExamples" },
                "missingValues": { "$ref": "#/$defs/StringMissingValues" },
                "minLength": { "$ref": "#/$defs/MinLength" },
                "maxLength": { "$ref": "#/$defs/MaxLength" },
                "pattern": { "$ref": "#/$defs/Pattern" }
            }
        },
        "StringColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "categories": { "$ref": "#/$defs/StringCategories" },
                "categoriesOrdered": { "type": "boolean" }
            }
        },
        "StringCategoricalColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "categorical" },
                "categories": { "$ref": "#/$defs/StringCategories" },
                "withOrder": { "type": "boolean" }
            }
        },
        "DecimalColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "decimal" },
                "minimum": { "$ref": "#/$defs/NumberMinimum" },
                "maximum": { "$ref": "#/$defs/NumberMaximum" },
                "exclusiveMinimum": { "$ref": "#/$defs/NumberExclusiveMinimum" },
                "exclusiveMaximum": { "$ref": "#/$defs/NumberExclusiveMaximum" },
                "multipleOf": { "$ref": "#/$defs/NumberMultipleOf" },
                "decimalChar": { "$ref": "#/$defs/DecimalChar" },
                "groupChar": { "$ref": "#/$defs/GroupChar" },
                "withText": { "type": "boolean" }
            }
        },
        "ListColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "list" },
                "itemType": { "$ref": "#/$defs/ListItemType" },
                "delimiter": { "$ref": "#/$defs/ListDelimiter" },
                "minItems": { "$ref": "#/$defs/MinItems" },
                "maxItems": { "$ref": "#/$defs/MaxItems" }
            }
        },
        "Base64ColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "base64" }
            }
        },
        "HexColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "hex" }
            }
        },
        "EmailColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "email" }
            }
        },
        "UrlColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "url" }
            }
        },
        "DateTimeColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "date-time" },
                "temporalFormat": { "$ref": "#/$defs/TemporalFormat" }
            }
        },
        "DateColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "date" },
                "temporalFormat": { "$ref": "#/$defs/TemporalFormat" }
            }
        },
        "TimeColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "time" },
                "temporalFormat": { "$ref": "#/$defs/TemporalFormat" }
            }
        },
        "DurationColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "duration" }
            }
        },
        "WktColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "wkt" }
            }
        },
        "WkbColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseStringColumnProperty" }],
            "properties": {
                "format": { "const": "wkb" }
            }
        },
        "ArrayColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/JsonSchema" }],
            "properties": {
                "type": { "$ref": "#/$defs/ArrayType" },
                "enum": { "$ref": "#/$defs/ArrayEnum" },
                "const": { "$ref": "#/$defs/ArrayConst" },
                "default": { "$ref": "#/$defs/ArrayDefault" },
                "examples": { "$ref": "#/$defs/ArrayExamples" },
                "missingValues": { "$ref": "#/$defs/StringMissingValues" }
            }
        },
        "BaseObjectColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/JsonSchema" }],
            "properties": {
                "type": { "$ref": "#/$defs/ObjectType" },
                "enum": { "$ref": "#/$defs/ObjectEnum" },
                "const": { "$ref": "#/$defs/ObjectConst" },
                "default": { "$ref": "#/$defs/ObjectDefault" },
                "examples": { "$ref": "#/$defs/ObjectExamples" },
                "missingValues": { "$ref": "#/$defs/StringMissingValues" }
            }
        },
        "ObjectColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseObjectColumnProperty" }]
        },
        "GeojsonColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseObjectColumnProperty" }],
            "properties": {
                "format": { "const": "geojson" }
            }
        },
        "TopojsonColumnProperty": {
            "allOf": [{ "$ref": "#/$defs/BaseObjectColumnProperty" }],
            "properties": {
                "format": { "const": "topojson" }
            }
        },
        "ExternalPath": {
            "type": "string",
            "pattern": "^https?://"
        },
        "RdfType": {
            "type": "string",
            "format": "uri"
        },
        "Pattern": {
            "type": "string",
            "format": "regex"
        },
        "MinLength": {
            "type": "integer",
            "minimum": 0
        },
        "MaxLength": {
            "type": "integer",
            "minimum": 0
        },
        "MinItems": {
            "type": "integer",
            "minimum": 0
        },
        "MaxItems": {
            "type": "integer",
            "minimum": 0
        },
        "TrueValues": {
            "type": "array",
            "items": { "type": "string" }
        },
        "FalseValues": {
            "type": "array",
            "items": { "type": "string" }
        },
        "IntegerMinimum": {
            "type": "integer"
        },
        "IntegerMaximum": {
            "type": "integer"
        },
        "IntegerExclusiveMinimum": {
            "type": "integer"
        },
        "IntegerExclusiveMaximum": {
            "type": "integer"
        },
        "IntegerMultipleOf": {
            "type": "integer",
            "minimum": 1
        },
        "NumberMinimum": {
            "type": "number"
        },
        "NumberMaximum": {
            "type": "number"
        },
        "NumberExclusiveMinimum": {
            "type": "number"
        },
        "NumberExclusiveMaximum": {
            "type": "number"
        },
        "NumberMultipleOf": {
            "type": "number",
            "exclusiveMinimum": 0
        },
        "DecimalChar": {
            "type": "string",
            "maxLength": 1
        },
        "GroupChar": {
            "type": "string",
            "maxLength": 1
        },
        "TemporalFormat": {
            "type": "string"
        },
        "ListDelimiter": {
            "type": "string",
            "maxLength": 1
        },
        "ListItemType": {
            "enum": ["string", "integer", "number", "boolean", "date-time", "date", "time"]
        },
        "PrimaryKey": {
            "type": "array",
            "items": { "type": "string" },
            "minItems": 1
        },
        "UniqueKeys": {
            "type": "array",
            "items": { "$ref": "#/$defs/UniqueKey" },
            "minItems": 1
        },
        "UniqueKey": {
            "type": "array",
            "items": { "type": "string" },
            "minItems": 1
        },
        "ForeignKeys": {
            "type": "array",
            "items": { "$ref": "#/$defs/ForeignKey" },
            "minItems": 1
        },
        "ForeignKey": {
            "type": "object",
            "required": ["columns", "reference"],
            "properties": {
                "columns": { "$ref": "#/$defs/ForeignKeyColumns" },
                "reference": { "$ref": "#/$defs/ForeignKeyReference" }
            }
        },
        "ForeignKeyReference": {
            "type": "object",
            "required": ["columns"],
            "properties": {
                "resource": { "type": "string" },
                "columns": { "$ref": "#/$defs/ForeignKeyColumns" }
            }
        },
        "ForeignKeyColumns": {
            "type": "array",
            "items": { "type": "string" }
        },
        "BooleanType": {
            "enum": ["boolean", ["boolean", "null"], ["null", "boolean"]]
        },
        "IntegerType": {
            "enum": ["integer", ["integer", "null"], ["null", "integer"]]
        },
        "NumberType": {
            "enum": ["number", ["number", "null"], ["null", "number"]]
        },
        "StringType": {
            "const": ["string", ["string", "null"], ["null", "string"]]
        },
        "ArrayType": {
            "const": ["array", ["array", "null"], ["null", "array"]]
        },
        "ObjectType": {
            "const": ["object", ["object", "null"], ["null", "object"]]
        },
        "MissingValues": {
            "type": "array",
            "items": {
                "oneOf": [
                    { "type": ["string", "integer"] },
                    {
                        "type": "object",
                        "properties": {
                            "value": { "type": ["string", "integer"] },
                            "label": { "type": "string" }
                        }
                    }
                ]
            }
        },
        "StringMissingValues": {
            "type": "array",
            "items": {
                "oneOf": [
                    { "type": "string" },
                    {
                        "type": "object",
                        "properties": {
                            "value": { "type": "string" },
                            "label": { "type": "string" }
                        }
                    }
                ]
            }
        },
        "BooleanExamples": {
            "type": "array",
            "items": { "type": "boolean" }
        },
        "IntegerExamples": {
            "type": "array",
            "items": { "type": "integer" }
        },
        "NumberExamples": {
            "type": "array",
            "items": { "type": "number" }
        },
        "StringExamples": {
            "type": "array",
            "items": { "type": "string" }
        },
        "ArrayExamples": {
            "type": "array",
            "items": { "type": "array" }
        },
        "ObjectExamples": {
            "type": "array",
            "items": { "type": "object" }
        },
        "UnknownExamples": {
            "type": "array"
        },
        "BooleanEnum": {
            "type": "array",
            "items": { "type": "boolean" }
        },
        "IntegerEnum": {
            "type": "array",
            "items": { "type": "integer" }
        },
        "NumberEnum": {
            "type": "array",
            "items": { "type": "number" }
        },
        "StringEnum": {
            "type": "array",
            "items": { "type": "string" }
        },
        "ArrayEnum": {
            "type": "array",
            "items": { "type": "array" }
        },
        "ObjectEnum": {
            "type": "array",
            "items": { "type": "object" }
        },
        "UnknownEnum": {
            "type": "array"
        },
        "BooleanConst": {
            "type": "boolean"
        },
        "IntegerConst": {
            "type": "integer"
        },
        "NumberConst": {
            "type": "number"
        },
        "StringConst": {
            "type": "string"
        },
        "ArrayConst": {
            "type": "array"
        },
        "ObjectConst": {
            "type": "object"
        },
        "UnknownConst": {},
        "BooleanDefault": {
            "type": "boolean"
        },
        "IntegerDefault": {
            "type": "integer"
        },
        "NumberDefault": {
            "type": "number"
        },
        "StringDefault": {
            "type": "string"
        },
        "ArrayDefault": {
            "type": "array"
        },
        "ObjectDefault": {
            "type": "object"
        },
        "UnknownDefault": {},
        "IntegerCategories": {
            "type": "array",
            "items": {
                "oneOf": [
                    { "type": "integer" },
                    {
                        "type": "object",
                        "properties": {
                            "value": { "type": "integer" },
                            "label": { "type": "string" }
                        }
                    }
                ]
            }
        },
        "StringCategories": {
            "type": "array",
            "items": {
                "oneOf": [
                    { "type": "string" },
                    {
                        "type": "object",
                        "properties": {
                            "value": { "type": "string" },
                            "label": { "type": "string" }
                        }
                    }
                ]
            }
        }
    }
}