{
	"$schema": "https://json-schema.org/schema#",
	"description": "MediaWiki abstract database schema schema",
	"type": "object",
	"additionalProperties": false,
	"properties": {
		"comment": {
			"type": "string",
			"description": "Comment describing the schema change"
		},
		"before": {
			"oneOf": [
				{
					"type": "object",
					"description": "Emtpy object signifying table creation",
					"maxProperties": 0
				},
				{
					"type": "object",
					"description": "Schema before the change",
					"$ref": "abstract-schema-table.json"
				}
			]
		},
		"after": {
			"type": "object",
			"description": "Schema after the change",
			"$ref": "abstract-schema-table.json"
		}
	}
}