mirror of
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612 lines
26 KiB
Protocol Buffer
612 lines
26 KiB
Protocol Buffer
// Copyright 2018 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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syntax = "proto3";
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package google.spanner.v1;
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import "google/api/annotations.proto";
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import "google/protobuf/empty.proto";
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import "google/protobuf/struct.proto";
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import "google/protobuf/timestamp.proto";
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import "google/spanner/v1/keys.proto";
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import "google/spanner/v1/mutation.proto";
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import "google/spanner/v1/result_set.proto";
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import "google/spanner/v1/transaction.proto";
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import "google/spanner/v1/type.proto";
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option csharp_namespace = "Google.Cloud.Spanner.V1";
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option go_package = "google.golang.org/genproto/googleapis/spanner/v1;spanner";
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option java_multiple_files = true;
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option java_outer_classname = "SpannerProto";
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option java_package = "com.google.spanner.v1";
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option php_namespace = "Google\\Cloud\\Spanner\\V1";
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// Cloud Spanner API
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//
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// The Cloud Spanner API can be used to manage sessions and execute
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// transactions on data stored in Cloud Spanner databases.
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service Spanner {
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// Creates a new session. A session can be used to perform
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// transactions that read and/or modify data in a Cloud Spanner database.
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// Sessions are meant to be reused for many consecutive
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// transactions.
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//
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// Sessions can only execute one transaction at a time. To execute
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// multiple concurrent read-write/write-only transactions, create
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// multiple sessions. Note that standalone reads and queries use a
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// transaction internally, and count toward the one transaction
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// limit.
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//
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// Cloud Spanner limits the number of sessions that can exist at any given
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// time; thus, it is a good idea to delete idle and/or unneeded sessions.
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// Aside from explicit deletes, Cloud Spanner can delete sessions for which no
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// operations are sent for more than an hour. If a session is deleted,
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// requests to it return `NOT_FOUND`.
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//
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// Idle sessions can be kept alive by sending a trivial SQL query
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// periodically, e.g., `"SELECT 1"`.
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rpc CreateSession(CreateSessionRequest) returns (Session) {
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option (google.api.http) = {
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post: "/v1/{database=projects/*/instances/*/databases/*}/sessions"
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body: "*"
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};
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}
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// Gets a session. Returns `NOT_FOUND` if the session does not exist.
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// This is mainly useful for determining whether a session is still
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// alive.
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rpc GetSession(GetSessionRequest) returns (Session) {
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option (google.api.http) = {
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get: "/v1/{name=projects/*/instances/*/databases/*/sessions/*}"
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};
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}
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// Lists all sessions in a given database.
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rpc ListSessions(ListSessionsRequest) returns (ListSessionsResponse) {
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option (google.api.http) = {
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get: "/v1/{database=projects/*/instances/*/databases/*}/sessions"
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};
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}
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// Ends a session, releasing server resources associated with it.
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rpc DeleteSession(DeleteSessionRequest) returns (google.protobuf.Empty) {
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option (google.api.http) = {
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delete: "/v1/{name=projects/*/instances/*/databases/*/sessions/*}"
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};
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}
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// Executes an SQL query, returning all rows in a single reply. This
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// method cannot be used to return a result set larger than 10 MiB;
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// if the query yields more data than that, the query fails with
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// a `FAILED_PRECONDITION` error.
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//
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// Queries inside read-write transactions might return `ABORTED`. If
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// this occurs, the application should restart the transaction from
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// the beginning. See [Transaction][google.spanner.v1.Transaction] for more details.
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//
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// Larger result sets can be fetched in streaming fashion by calling
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// [ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql] instead.
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rpc ExecuteSql(ExecuteSqlRequest) returns (ResultSet) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:executeSql"
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body: "*"
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};
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}
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// Like [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql], except returns the result
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// set as a stream. Unlike [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql], there
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// is no limit on the size of the returned result set. However, no
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// individual row in the result set can exceed 100 MiB, and no
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// column value can exceed 10 MiB.
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rpc ExecuteStreamingSql(ExecuteSqlRequest) returns (stream PartialResultSet) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:executeStreamingSql"
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body: "*"
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};
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}
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// Reads rows from the database using key lookups and scans, as a
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// simple key/value style alternative to
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// [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql]. This method cannot be used to
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// return a result set larger than 10 MiB; if the read matches more
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// data than that, the read fails with a `FAILED_PRECONDITION`
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// error.
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//
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// Reads inside read-write transactions might return `ABORTED`. If
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// this occurs, the application should restart the transaction from
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// the beginning. See [Transaction][google.spanner.v1.Transaction] for more details.
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//
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// Larger result sets can be yielded in streaming fashion by calling
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// [StreamingRead][google.spanner.v1.Spanner.StreamingRead] instead.
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rpc Read(ReadRequest) returns (ResultSet) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:read"
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body: "*"
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};
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}
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// Like [Read][google.spanner.v1.Spanner.Read], except returns the result set as a
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// stream. Unlike [Read][google.spanner.v1.Spanner.Read], there is no limit on the
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// size of the returned result set. However, no individual row in
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// the result set can exceed 100 MiB, and no column value can exceed
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// 10 MiB.
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rpc StreamingRead(ReadRequest) returns (stream PartialResultSet) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:streamingRead"
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body: "*"
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};
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}
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// Begins a new transaction. This step can often be skipped:
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// [Read][google.spanner.v1.Spanner.Read], [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] and
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// [Commit][google.spanner.v1.Spanner.Commit] can begin a new transaction as a
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// side-effect.
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rpc BeginTransaction(BeginTransactionRequest) returns (Transaction) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:beginTransaction"
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body: "*"
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};
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}
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// Commits a transaction. The request includes the mutations to be
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// applied to rows in the database.
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//
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// `Commit` might return an `ABORTED` error. This can occur at any time;
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// commonly, the cause is conflicts with concurrent
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// transactions. However, it can also happen for a variety of other
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// reasons. If `Commit` returns `ABORTED`, the caller should re-attempt
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// the transaction from the beginning, re-using the same session.
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rpc Commit(CommitRequest) returns (CommitResponse) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:commit"
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body: "*"
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};
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}
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// Rolls back a transaction, releasing any locks it holds. It is a good
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// idea to call this for any transaction that includes one or more
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// [Read][google.spanner.v1.Spanner.Read] or [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] requests and
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// ultimately decides not to commit.
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//
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// `Rollback` returns `OK` if it successfully aborts the transaction, the
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// transaction was already aborted, or the transaction is not
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// found. `Rollback` never returns `ABORTED`.
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rpc Rollback(RollbackRequest) returns (google.protobuf.Empty) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:rollback"
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body: "*"
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};
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}
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// Creates a set of partition tokens that can be used to execute a query
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// operation in parallel. Each of the returned partition tokens can be used
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// by [ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql] to specify a subset
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// of the query result to read. The same session and read-only transaction
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// must be used by the PartitionQueryRequest used to create the
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// partition tokens and the ExecuteSqlRequests that use the partition tokens.
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// Partition tokens become invalid when the session used to create them
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// is deleted or begins a new transaction.
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rpc PartitionQuery(PartitionQueryRequest) returns (PartitionResponse) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:partitionQuery"
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body: "*"
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};
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}
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// Creates a set of partition tokens that can be used to execute a read
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// operation in parallel. Each of the returned partition tokens can be used
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// by [StreamingRead][google.spanner.v1.Spanner.StreamingRead] to specify a subset of the read
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// result to read. The same session and read-only transaction must be used by
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// the PartitionReadRequest used to create the partition tokens and the
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// ReadRequests that use the partition tokens.
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// Partition tokens become invalid when the session used to create them
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// is deleted or begins a new transaction.
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rpc PartitionRead(PartitionReadRequest) returns (PartitionResponse) {
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option (google.api.http) = {
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post: "/v1/{session=projects/*/instances/*/databases/*/sessions/*}:partitionRead"
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body: "*"
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};
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}
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}
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// The request for [CreateSession][google.spanner.v1.Spanner.CreateSession].
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message CreateSessionRequest {
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// Required. The database in which the new session is created.
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string database = 1;
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// The session to create.
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Session session = 2;
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}
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// A session in the Cloud Spanner API.
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message Session {
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// The name of the session. This is always system-assigned; values provided
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// when creating a session are ignored.
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string name = 1;
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// The labels for the session.
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//
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// * Label keys must be between 1 and 63 characters long and must conform to
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// the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`.
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// * Label values must be between 0 and 63 characters long and must conform
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// to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`.
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// * No more than 64 labels can be associated with a given session.
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//
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// See https://goo.gl/xmQnxf for more information on and examples of labels.
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map<string, string> labels = 2;
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// Output only. The timestamp when the session is created.
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google.protobuf.Timestamp create_time = 3;
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// Output only. The approximate timestamp when the session is last used. It is
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// typically earlier than the actual last use time.
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google.protobuf.Timestamp approximate_last_use_time = 4;
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}
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// The request for [GetSession][google.spanner.v1.Spanner.GetSession].
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message GetSessionRequest {
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// Required. The name of the session to retrieve.
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string name = 1;
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}
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// The request for [ListSessions][google.spanner.v1.Spanner.ListSessions].
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message ListSessionsRequest {
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// Required. The database in which to list sessions.
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string database = 1;
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// Number of sessions to be returned in the response. If 0 or less, defaults
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// to the server's maximum allowed page size.
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int32 page_size = 2;
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// If non-empty, `page_token` should contain a
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// [next_page_token][google.spanner.v1.ListSessionsResponse.next_page_token] from a previous
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// [ListSessionsResponse][google.spanner.v1.ListSessionsResponse].
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string page_token = 3;
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// An expression for filtering the results of the request. Filter rules are
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// case insensitive. The fields eligible for filtering are:
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//
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// * `labels.key` where key is the name of a label
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//
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// Some examples of using filters are:
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//
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// * `labels.env:*` --> The session has the label "env".
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// * `labels.env:dev` --> The session has the label "env" and the value of
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// the label contains the string "dev".
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string filter = 4;
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}
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// The response for [ListSessions][google.spanner.v1.Spanner.ListSessions].
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message ListSessionsResponse {
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// The list of requested sessions.
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repeated Session sessions = 1;
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// `next_page_token` can be sent in a subsequent
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// [ListSessions][google.spanner.v1.Spanner.ListSessions] call to fetch more of the matching
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// sessions.
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string next_page_token = 2;
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}
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// The request for [DeleteSession][google.spanner.v1.Spanner.DeleteSession].
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message DeleteSessionRequest {
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// Required. The name of the session to delete.
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string name = 1;
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}
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// The request for [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] and
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// [ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql].
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message ExecuteSqlRequest {
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// Mode in which the query must be processed.
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enum QueryMode {
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// The default mode where only the query result, without any information
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// about the query plan is returned.
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NORMAL = 0;
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// This mode returns only the query plan, without any result rows or
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// execution statistics information.
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PLAN = 1;
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// This mode returns both the query plan and the execution statistics along
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// with the result rows.
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PROFILE = 2;
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}
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// Required. The session in which the SQL query should be performed.
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string session = 1;
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// The transaction to use. If none is provided, the default is a
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// temporary read-only transaction with strong concurrency.
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TransactionSelector transaction = 2;
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// Required. The SQL query string.
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string sql = 3;
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// The SQL query string can contain parameter placeholders. A parameter
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// placeholder consists of `'@'` followed by the parameter
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// name. Parameter names consist of any combination of letters,
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// numbers, and underscores.
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//
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// Parameters can appear anywhere that a literal value is expected. The same
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// parameter name can be used more than once, for example:
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// `"WHERE id > @msg_id AND id < @msg_id + 100"`
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//
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// It is an error to execute an SQL query with unbound parameters.
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//
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// Parameter values are specified using `params`, which is a JSON
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// object whose keys are parameter names, and whose values are the
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// corresponding parameter values.
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google.protobuf.Struct params = 4;
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// It is not always possible for Cloud Spanner to infer the right SQL type
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// from a JSON value. For example, values of type `BYTES` and values
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// of type `STRING` both appear in [params][google.spanner.v1.ExecuteSqlRequest.params] as JSON strings.
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//
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// In these cases, `param_types` can be used to specify the exact
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// SQL type for some or all of the SQL query parameters. See the
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// definition of [Type][google.spanner.v1.Type] for more information
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// about SQL types.
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map<string, Type> param_types = 5;
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// If this request is resuming a previously interrupted SQL query
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// execution, `resume_token` should be copied from the last
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// [PartialResultSet][google.spanner.v1.PartialResultSet] yielded before the interruption. Doing this
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// enables the new SQL query execution to resume where the last one left
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// off. The rest of the request parameters must exactly match the
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// request that yielded this token.
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bytes resume_token = 6;
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// Used to control the amount of debugging information returned in
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// [ResultSetStats][google.spanner.v1.ResultSetStats]. If [partition_token][google.spanner.v1.ExecuteSqlRequest.partition_token] is set, [query_mode][google.spanner.v1.ExecuteSqlRequest.query_mode] can only
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// be set to [QueryMode.NORMAL][google.spanner.v1.ExecuteSqlRequest.QueryMode.NORMAL].
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QueryMode query_mode = 7;
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// If present, results will be restricted to the specified partition
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// previously created using PartitionQuery(). There must be an exact
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// match for the values of fields common to this message and the
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// PartitionQueryRequest message used to create this partition_token.
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bytes partition_token = 8;
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}
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// Options for a PartitionQueryRequest and
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// PartitionReadRequest.
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message PartitionOptions {
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// **Note:** This hint is currently ignored by PartitionQuery and
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// PartitionRead requests.
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//
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// The desired data size for each partition generated. The default for this
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// option is currently 1 GiB. This is only a hint. The actual size of each
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// partition may be smaller or larger than this size request.
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int64 partition_size_bytes = 1;
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// **Note:** This hint is currently ignored by PartitionQuery and
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// PartitionRead requests.
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//
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// The desired maximum number of partitions to return. For example, this may
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// be set to the number of workers available. The default for this option
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// is currently 10,000. The maximum value is currently 200,000. This is only
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// a hint. The actual number of partitions returned may be smaller or larger
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// than this maximum count request.
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int64 max_partitions = 2;
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}
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// The request for [PartitionQuery][google.spanner.v1.Spanner.PartitionQuery]
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message PartitionQueryRequest {
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// Required. The session used to create the partitions.
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string session = 1;
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// Read only snapshot transactions are supported, read/write and single use
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// transactions are not.
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TransactionSelector transaction = 2;
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// The query request to generate partitions for. The request will fail if
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// the query is not root partitionable. The query plan of a root
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// partitionable query has a single distributed union operator. A distributed
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// union operator conceptually divides one or more tables into multiple
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// splits, remotely evaluates a subquery independently on each split, and
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// then unions all results.
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string sql = 3;
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// The SQL query string can contain parameter placeholders. A parameter
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// placeholder consists of `'@'` followed by the parameter
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// name. Parameter names consist of any combination of letters,
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// numbers, and underscores.
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//
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// Parameters can appear anywhere that a literal value is expected. The same
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// parameter name can be used more than once, for example:
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// `"WHERE id > @msg_id AND id < @msg_id + 100"`
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//
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// It is an error to execute an SQL query with unbound parameters.
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//
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// Parameter values are specified using `params`, which is a JSON
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// object whose keys are parameter names, and whose values are the
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// corresponding parameter values.
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google.protobuf.Struct params = 4;
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// It is not always possible for Cloud Spanner to infer the right SQL type
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// from a JSON value. For example, values of type `BYTES` and values
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// of type `STRING` both appear in [params][google.spanner.v1.PartitionQueryRequest.params] as JSON strings.
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//
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// In these cases, `param_types` can be used to specify the exact
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// SQL type for some or all of the SQL query parameters. See the
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// definition of [Type][google.spanner.v1.Type] for more information
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// about SQL types.
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map<string, Type> param_types = 5;
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// Additional options that affect how many partitions are created.
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PartitionOptions partition_options = 6;
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}
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// The request for [PartitionRead][google.spanner.v1.Spanner.PartitionRead]
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message PartitionReadRequest {
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// Required. The session used to create the partitions.
|
|
string session = 1;
|
|
|
|
// Read only snapshot transactions are supported, read/write and single use
|
|
// transactions are not.
|
|
TransactionSelector transaction = 2;
|
|
|
|
// Required. The name of the table in the database to be read.
|
|
string table = 3;
|
|
|
|
// If non-empty, the name of an index on [table][google.spanner.v1.PartitionReadRequest.table]. This index is
|
|
// used instead of the table primary key when interpreting [key_set][google.spanner.v1.PartitionReadRequest.key_set]
|
|
// and sorting result rows. See [key_set][google.spanner.v1.PartitionReadRequest.key_set] for further information.
|
|
string index = 4;
|
|
|
|
// The columns of [table][google.spanner.v1.PartitionReadRequest.table] to be returned for each row matching
|
|
// this request.
|
|
repeated string columns = 5;
|
|
|
|
// Required. `key_set` identifies the rows to be yielded. `key_set` names the
|
|
// primary keys of the rows in [table][google.spanner.v1.PartitionReadRequest.table] to be yielded, unless [index][google.spanner.v1.PartitionReadRequest.index]
|
|
// is present. If [index][google.spanner.v1.PartitionReadRequest.index] is present, then [key_set][google.spanner.v1.PartitionReadRequest.key_set] instead names
|
|
// index keys in [index][google.spanner.v1.PartitionReadRequest.index].
|
|
//
|
|
// It is not an error for the `key_set` to name rows that do not
|
|
// exist in the database. Read yields nothing for nonexistent rows.
|
|
KeySet key_set = 6;
|
|
|
|
// Additional options that affect how many partitions are created.
|
|
PartitionOptions partition_options = 9;
|
|
}
|
|
|
|
// Information returned for each partition returned in a
|
|
// PartitionResponse.
|
|
message Partition {
|
|
// This token can be passed to Read, StreamingRead, ExecuteSql, or
|
|
// ExecuteStreamingSql requests to restrict the results to those identified by
|
|
// this partition token.
|
|
bytes partition_token = 1;
|
|
}
|
|
|
|
// The response for [PartitionQuery][google.spanner.v1.Spanner.PartitionQuery]
|
|
// or [PartitionRead][google.spanner.v1.Spanner.PartitionRead]
|
|
message PartitionResponse {
|
|
// Partitions created by this request.
|
|
repeated Partition partitions = 1;
|
|
|
|
// Transaction created by this request.
|
|
Transaction transaction = 2;
|
|
}
|
|
|
|
// The request for [Read][google.spanner.v1.Spanner.Read] and
|
|
// [StreamingRead][google.spanner.v1.Spanner.StreamingRead].
|
|
message ReadRequest {
|
|
// Required. The session in which the read should be performed.
|
|
string session = 1;
|
|
|
|
// The transaction to use. If none is provided, the default is a
|
|
// temporary read-only transaction with strong concurrency.
|
|
TransactionSelector transaction = 2;
|
|
|
|
// Required. The name of the table in the database to be read.
|
|
string table = 3;
|
|
|
|
// If non-empty, the name of an index on [table][google.spanner.v1.ReadRequest.table]. This index is
|
|
// used instead of the table primary key when interpreting [key_set][google.spanner.v1.ReadRequest.key_set]
|
|
// and sorting result rows. See [key_set][google.spanner.v1.ReadRequest.key_set] for further information.
|
|
string index = 4;
|
|
|
|
// The columns of [table][google.spanner.v1.ReadRequest.table] to be returned for each row matching
|
|
// this request.
|
|
repeated string columns = 5;
|
|
|
|
// Required. `key_set` identifies the rows to be yielded. `key_set` names the
|
|
// primary keys of the rows in [table][google.spanner.v1.ReadRequest.table] to be yielded, unless [index][google.spanner.v1.ReadRequest.index]
|
|
// is present. If [index][google.spanner.v1.ReadRequest.index] is present, then [key_set][google.spanner.v1.ReadRequest.key_set] instead names
|
|
// index keys in [index][google.spanner.v1.ReadRequest.index].
|
|
//
|
|
// If the [partition_token][google.spanner.v1.ReadRequest.partition_token] field is empty, rows are yielded
|
|
// in table primary key order (if [index][google.spanner.v1.ReadRequest.index] is empty) or index key order
|
|
// (if [index][google.spanner.v1.ReadRequest.index] is non-empty). If the [partition_token][google.spanner.v1.ReadRequest.partition_token] field is not
|
|
// empty, rows will be yielded in an unspecified order.
|
|
//
|
|
// It is not an error for the `key_set` to name rows that do not
|
|
// exist in the database. Read yields nothing for nonexistent rows.
|
|
KeySet key_set = 6;
|
|
|
|
// If greater than zero, only the first `limit` rows are yielded. If `limit`
|
|
// is zero, the default is no limit. A limit cannot be specified if
|
|
// `partition_token` is set.
|
|
int64 limit = 8;
|
|
|
|
// If this request is resuming a previously interrupted read,
|
|
// `resume_token` should be copied from the last
|
|
// [PartialResultSet][google.spanner.v1.PartialResultSet] yielded before the interruption. Doing this
|
|
// enables the new read to resume where the last read left off. The
|
|
// rest of the request parameters must exactly match the request
|
|
// that yielded this token.
|
|
bytes resume_token = 9;
|
|
|
|
// If present, results will be restricted to the specified partition
|
|
// previously created using PartitionRead(). There must be an exact
|
|
// match for the values of fields common to this message and the
|
|
// PartitionReadRequest message used to create this partition_token.
|
|
bytes partition_token = 10;
|
|
}
|
|
|
|
// The request for [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction].
|
|
message BeginTransactionRequest {
|
|
// Required. The session in which the transaction runs.
|
|
string session = 1;
|
|
|
|
// Required. Options for the new transaction.
|
|
TransactionOptions options = 2;
|
|
}
|
|
|
|
// The request for [Commit][google.spanner.v1.Spanner.Commit].
|
|
message CommitRequest {
|
|
// Required. The session in which the transaction to be committed is running.
|
|
string session = 1;
|
|
|
|
// Required. The transaction in which to commit.
|
|
oneof transaction {
|
|
// Commit a previously-started transaction.
|
|
bytes transaction_id = 2;
|
|
|
|
// Execute mutations in a temporary transaction. Note that unlike
|
|
// commit of a previously-started transaction, commit with a
|
|
// temporary transaction is non-idempotent. That is, if the
|
|
// `CommitRequest` is sent to Cloud Spanner more than once (for
|
|
// instance, due to retries in the application, or in the
|
|
// transport library), it is possible that the mutations are
|
|
// executed more than once. If this is undesirable, use
|
|
// [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and
|
|
// [Commit][google.spanner.v1.Spanner.Commit] instead.
|
|
TransactionOptions single_use_transaction = 3;
|
|
}
|
|
|
|
// The mutations to be executed when this transaction commits. All
|
|
// mutations are applied atomically, in the order they appear in
|
|
// this list.
|
|
repeated Mutation mutations = 4;
|
|
}
|
|
|
|
// The response for [Commit][google.spanner.v1.Spanner.Commit].
|
|
message CommitResponse {
|
|
// The Cloud Spanner timestamp at which the transaction committed.
|
|
google.protobuf.Timestamp commit_timestamp = 1;
|
|
}
|
|
|
|
// The request for [Rollback][google.spanner.v1.Spanner.Rollback].
|
|
message RollbackRequest {
|
|
// Required. The session in which the transaction to roll back is running.
|
|
string session = 1;
|
|
|
|
// Required. The transaction to roll back.
|
|
bytes transaction_id = 2;
|
|
}
|