HybridRow/test-data/CoverageSchema.json

{
	"schemas": [
		{
			"name": "myUDT", // Question: what should the namespace/structure of schema identifiers.
			"id": 1,
			"type": "schema", // Optional: implied at the top-level (only "schema" types can be defined at the root of schemas)
			"options": {
				"disallowUnschematized": false // Optional: defaults to false
			},
			"properties": [
				{
					"path": "a",
					"type": {
						"type": "int8",
						"storage": "fixed"
					}
				},
				{
					"path": "b",
					"type": {
						"type": "utf8",
						"storage": "variable"
					}
				}
			]
		},
		{
			"name": "someTable",
			"id": -1,
			"options": {
				"disallowUnschematized": true
			},
			"properties": [
				{
					"path": "myBool",
					"comment": "A sample fixed boolean column",
					"type": {
						"type": "bool",
						"storage": "fixed"
					}
				},
				{
					"path": "myInt8",
					"comment": "A sample fixed 8-byte integer column",
					"type": {
						"type": "int8",
						"storage": "fixed"
					}
				},
				{
					"path": "nested.x",
					"comment": "A sample nested integer column",
					"type": {
						"type": "int32",
						"storage": "fixed"
					}
				},
				{
					"path": "nested.y",
					"comment": "A sample nested float column",
					"type": {
						"type": "float32",
						"storage": "fixed"
					}
				},
				{
					"path": "nested.deeper.z",
					"comment": "A sample deeper nested double column",
					"type": {
						"type": "float64",
						"storage": "fixed"
					}
				},
				{
					"path": "State",
					"comment": "A sample fixed 2-byte UTF-8 encoded text column",
					"type": {
						"type": "utf8",
						"storage": "fixed",
						"length": 2
					}
				},
				{
					"path": "myString",
					"comment": "A sample variable length UTF-8 encoded text column (up to 127 bytes)",
					"type": {
						"type": "utf8",
						"storage": "variable"
					}
				},
				{
					"path": "lob",
					"comment": "A sample extended UTF-8 encoded text column (up to 2M bytes)",
					"type": {
						"type": "utf8",
						"storage": "sparse"
					}
				},
				{
					"path": "canbelob",
					"comment":
						"A sample extended UTF-8 encoded text column (up to 2M bytes) that stores variable if 'small' (<127 bytes), but sparse if 'large'",
					"type": {
						"type": "utf8",
						"storage": "variable"
					}
				},
				{
					"path": "primitiveArray",
					"comment": "A sample array of primitives (4-byte ints)",
					"type": { "type": "array", "items": { "type": "int32" } }
				},
				{
					"path": "shreddedArray[0]",
					"comment": "A sample fixed-length array of primitives",
					"type": { "type": "int32" }
				},
				{
					"path": "shreddedArray[1]",
					"comment": "A sample fixed-length array of primitives",
					"type": { "type": "int32" }
				},
				{
					"path": "nestedArray",
					"comment": "A sample array of nested arrays",
					"type": {
						"type": "array",
						"items": {
							"type": "array",
							"items": { "type": "int32" }
						}
					}
				},
				{
					"path": "nestedNestedArray",
					"comment": "A sample array of nested nested arrays",
					"type": {
						"type": "array",
						"items": {
							"type": "array",
							"items": {
								"type": "array",
								"items": { "type": "int32" }
							}
						}
					}
				},
				{
					"path": "arrayOfObject",
					"comment": "A sample array of semi-structured objects",
					"type": {
						"type": "array",
						"items": {
							"type": "object",
							"properties": [
								{
									"path": "a",
									"type": { "type": "int8" }
								},
								{
									"path": "b",
									"type": { "type": "utf8" }
								}
							]
						}
					}
				},
				{
					"path": "arrayOfAny",
					"comment": "A sample heterogenous array",
					"type": {
						"type": "array",
						"items": { "type": "any" }
					}
				}, 
				{
					"path": "arrayOfUDT",
					"comment": "A sample array of schematized rows",
					"type": {
						"type": "array",
						"items": {
							"type": "schema",
							"name": "myUDT" // see definition above - should this be called $ref or ref or something?
						}
					}
				},
				{
					"path": "nestedObject",
					"comment": "A sample nested objects",
					"type": {
						"type": "object",
						"properties": [
							{
								"path": "a",
								"type": {
									"type": "int8"
								}
							},
							{
								"path": "b",
								"type": {
									"type": "utf8"
								}
							}
						]
					}
				}
			]
		}
	]
}