1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
// Copyright 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.spanner.v1;
import "google/api/annotations.proto";
option csharp_namespace = "Google.Cloud.Spanner.V1";
option go_package = "google.golang.org/genproto/googleapis/spanner/v1;spanner";
option java_multiple_files = true;
option java_outer_classname = "TypeProto";
option java_package = "com.google.spanner.v1";
// `Type` indicates the type of a Cloud Spanner value, as might be stored in a
// table cell or returned from an SQL query.
message Type {
// Required. The [TypeCode][google.spanner.v1.TypeCode] for this type.
TypeCode code = 1;
// If [code][google.spanner.v1.Type.code] == [ARRAY][google.spanner.v1.TypeCode.ARRAY], then `array_element_type`
// is the type of the array elements.
Type array_element_type = 2;
// If [code][google.spanner.v1.Type.code] == [STRUCT][google.spanner.v1.TypeCode.STRUCT], then `struct_type`
// provides type information for the struct's fields.
StructType struct_type = 3;
}
// `StructType` defines the fields of a [STRUCT][google.spanner.v1.TypeCode.STRUCT] type.
message StructType {
// Message representing a single field of a struct.
message Field {
// The name of the field. For reads, this is the column name. For
// SQL queries, it is the column alias (e.g., `"Word"` in the
// query `"SELECT 'hello' AS Word"`), or the column name (e.g.,
// `"ColName"` in the query `"SELECT ColName FROM Table"`). Some
// columns might have an empty name (e.g., !"SELECT
// UPPER(ColName)"`). Note that a query result can contain
// multiple fields with the same name.
string name = 1;
// The type of the field.
Type type = 2;
}
// The list of fields that make up this struct. Order is
// significant, because values of this struct type are represented as
// lists, where the order of field values matches the order of
// fields in the [StructType][google.spanner.v1.StructType]. In turn, the order of fields
// matches the order of columns in a read request, or the order of
// fields in the `SELECT` clause of a query.
repeated Field fields = 1;
}
// `TypeCode` is used as part of [Type][google.spanner.v1.Type] to
// indicate the type of a Cloud Spanner value.
//
// Each legal value of a type can be encoded to or decoded from a JSON
// value, using the encodings described below. All Cloud Spanner values can
// be `null`, regardless of type; `null`s are always encoded as a JSON
// `null`.
enum TypeCode {
// Not specified.
TYPE_CODE_UNSPECIFIED = 0;
// Encoded as JSON `true` or `false`.
BOOL = 1;
// Encoded as `string`, in decimal format.
INT64 = 2;
// Encoded as `number`, or the strings `"NaN"`, `"Infinity"`, or
// `"-Infinity"`.
FLOAT64 = 3;
// Encoded as `string` in RFC 3339 timestamp format. The time zone
// must be present, and must be `"Z"`.
TIMESTAMP = 4;
// Encoded as `string` in RFC 3339 date format.
DATE = 5;
// Encoded as `string`.
STRING = 6;
// Encoded as a base64-encoded `string`, as described in RFC 4648,
// section 4.
BYTES = 7;
// Encoded as `list`, where the list elements are represented
// according to [array_element_type][google.spanner.v1.Type.array_element_type].
ARRAY = 8;
// Encoded as `list`, where list element `i` is represented according
// to [struct_type.fields[i]][google.spanner.v1.StructType.fields].
STRUCT = 9;
}
|
