# frozen_string_literal: true # Copyright 2020 Google LLC # # 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 # # https://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. # Auto-generated by gapic-generator-ruby. DO NOT EDIT! module Google module Cloud module Spanner module V1 # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#create_session CreateSession}. # @!attribute [rw] database # @return [::String] # Required. The database in which the new session is created. # @!attribute [rw] session # @return [::Google::Cloud::Spanner::V1::Session] # Required. The session to create. class CreateSessionRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for # {::Google::Cloud::Spanner::V1::Spanner::Client#batch_create_sessions BatchCreateSessions}. # @!attribute [rw] database # @return [::String] # Required. The database in which the new sessions are created. # @!attribute [rw] session_template # @return [::Google::Cloud::Spanner::V1::Session] # Parameters to be applied to each created session. # @!attribute [rw] session_count # @return [::Integer] # Required. The number of sessions to be created in this batch call. # The API may return fewer than the requested number of sessions. If a # specific number of sessions are desired, the client can make additional # calls to BatchCreateSessions (adjusting # {::Google::Cloud::Spanner::V1::BatchCreateSessionsRequest#session_count session_count} # as necessary). class BatchCreateSessionsRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The response for # {::Google::Cloud::Spanner::V1::Spanner::Client#batch_create_sessions BatchCreateSessions}. # @!attribute [rw] session # @return [::Array<::Google::Cloud::Spanner::V1::Session>] # The freshly created sessions. class BatchCreateSessionsResponse include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # A session in the Cloud Spanner API. # @!attribute [r] name # @return [::String] # Output only. The name of the session. This is always system-assigned. # @!attribute [rw] labels # @return [::Google::Protobuf::Map{::String => ::String}] # The labels for the session. # # * Label keys must be between 1 and 63 characters long and must conform to # the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`. # * Label values must be between 0 and 63 characters long and must conform # to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`. # * No more than 64 labels can be associated with a given session. # # See https://goo.gl/xmQnxf for more information on and examples of labels. # @!attribute [r] create_time # @return [::Google::Protobuf::Timestamp] # Output only. The timestamp when the session is created. # @!attribute [r] approximate_last_use_time # @return [::Google::Protobuf::Timestamp] # Output only. The approximate timestamp when the session is last used. It is # typically earlier than the actual last use time. # @!attribute [rw] creator_role # @return [::String] # The database role which created this session. class Session include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # @!attribute [rw] key # @return [::String] # @!attribute [rw] value # @return [::String] class LabelsEntry include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#get_session GetSession}. # @!attribute [rw] name # @return [::String] # Required. The name of the session to retrieve. class GetSessionRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#list_sessions ListSessions}. # @!attribute [rw] database # @return [::String] # Required. The database in which to list sessions. # @!attribute [rw] page_size # @return [::Integer] # Number of sessions to be returned in the response. If 0 or less, defaults # to the server's maximum allowed page size. # @!attribute [rw] page_token # @return [::String] # If non-empty, `page_token` should contain a # {::Google::Cloud::Spanner::V1::ListSessionsResponse#next_page_token next_page_token} # from a previous # {::Google::Cloud::Spanner::V1::ListSessionsResponse ListSessionsResponse}. # @!attribute [rw] filter # @return [::String] # An expression for filtering the results of the request. Filter rules are # case insensitive. The fields eligible for filtering are: # # * `labels.key` where key is the name of a label # # Some examples of using filters are: # # * `labels.env:*` --> The session has the label "env". # * `labels.env:dev` --> The session has the label "env" and the value of # the label contains the string "dev". class ListSessionsRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The response for {::Google::Cloud::Spanner::V1::Spanner::Client#list_sessions ListSessions}. # @!attribute [rw] sessions # @return [::Array<::Google::Cloud::Spanner::V1::Session>] # The list of requested sessions. # @!attribute [rw] next_page_token # @return [::String] # `next_page_token` can be sent in a subsequent # {::Google::Cloud::Spanner::V1::Spanner::Client#list_sessions ListSessions} call to fetch more # of the matching sessions. class ListSessionsResponse include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#delete_session DeleteSession}. # @!attribute [rw] name # @return [::String] # Required. The name of the session to delete. class DeleteSessionRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # Common request options for various APIs. # @!attribute [rw] priority # @return [::Google::Cloud::Spanner::V1::RequestOptions::Priority] # Priority for the request. # @!attribute [rw] request_tag # @return [::String] # A per-request tag which can be applied to queries or reads, used for # statistics collection. # Both request_tag and transaction_tag can be specified for a read or query # that belongs to a transaction. # This field is ignored for requests where it's not applicable (e.g. # CommitRequest). # Legal characters for `request_tag` values are all printable characters # (ASCII 32 - 126) and the length of a request_tag is limited to 50 # characters. Values that exceed this limit are truncated. # Any leading underscore (_) characters will be removed from the string. # @!attribute [rw] transaction_tag # @return [::String] # A tag used for statistics collection about this transaction. # Both request_tag and transaction_tag can be specified for a read or query # that belongs to a transaction. # The value of transaction_tag should be the same for all requests belonging # to the same transaction. # If this request doesn't belong to any transaction, transaction_tag will be # ignored. # Legal characters for `transaction_tag` values are all printable characters # (ASCII 32 - 126) and the length of a transaction_tag is limited to 50 # characters. Values that exceed this limit are truncated. # Any leading underscore (_) characters will be removed from the string. class RequestOptions include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # The relative priority for requests. Note that priority is not applicable # for {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction}. # # The priority acts as a hint to the Cloud Spanner scheduler and does not # guarantee priority or order of execution. For example: # # * Some parts of a write operation always execute at `PRIORITY_HIGH`, # regardless of the specified priority. This may cause you to see an # increase in high priority workload even when executing a low priority # request. This can also potentially cause a priority inversion where a # lower priority request will be fulfilled ahead of a higher priority # request. # * If a transaction contains multiple operations with different priorities, # Cloud Spanner does not guarantee to process the higher priority # operations first. There may be other constraints to satisfy, such as # order of operations. module Priority # `PRIORITY_UNSPECIFIED` is equivalent to `PRIORITY_HIGH`. PRIORITY_UNSPECIFIED = 0 # This specifies that the request is low priority. PRIORITY_LOW = 1 # This specifies that the request is medium priority. PRIORITY_MEDIUM = 2 # This specifies that the request is high priority. PRIORITY_HIGH = 3 end end # The DirectedReadOptions can be used to indicate which replicas or regions # should be used for non-transactional reads or queries. # # DirectedReadOptions may only be specified for a read-only transaction, # otherwise the API will return an `INVALID_ARGUMENT` error. # @!attribute [rw] include_replicas # @return [::Google::Cloud::Spanner::V1::DirectedReadOptions::IncludeReplicas] # Include_replicas indicates the order of replicas (as they appear in # this list) to process the request. If auto_failover_disabled is set to # true and all replicas are exhausted without finding a healthy replica, # Spanner will wait for a replica in the list to become available, requests # may fail due to `DEADLINE_EXCEEDED` errors. # @!attribute [rw] exclude_replicas # @return [::Google::Cloud::Spanner::V1::DirectedReadOptions::ExcludeReplicas] # Exclude_replicas indicates that should be excluded from serving # requests. Spanner will not route requests to the replicas in this list. class DirectedReadOptions include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # The directed read replica selector. # Callers must provide one or more of the following fields for replica # selection: # # * `location` - The location must be one of the regions within the # multi-region configuration of your database. # * `type` - The type of the replica. # # Some examples of using replica_selectors are: # # * `location:us-east1` --> The "us-east1" replica(s) of any available type # will be used to process the request. # * `type:READ_ONLY` --> The "READ_ONLY" type replica(s) in nearest # . available location will be used to process the # request. # * `location:us-east1 type:READ_ONLY` --> The "READ_ONLY" type replica(s) # in location "us-east1" will be used to process # the request. # @!attribute [rw] location # @return [::String] # The location or region of the serving requests, e.g. "us-east1". # @!attribute [rw] type # @return [::Google::Cloud::Spanner::V1::DirectedReadOptions::ReplicaSelection::Type] # The type of replica. class ReplicaSelection include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # Indicates the type of replica. module Type # Not specified. TYPE_UNSPECIFIED = 0 # Read-write replicas support both reads and writes. READ_WRITE = 1 # Read-only replicas only support reads (not writes). READ_ONLY = 2 end end # An IncludeReplicas contains a repeated set of ReplicaSelection which # indicates the order in which replicas should be considered. # @!attribute [rw] replica_selections # @return [::Array<::Google::Cloud::Spanner::V1::DirectedReadOptions::ReplicaSelection>] # The directed read replica selector. # @!attribute [rw] auto_failover_disabled # @return [::Boolean] # If true, Spanner will not route requests to a replica outside the # include_replicas list when all of the specified replicas are unavailable # or unhealthy. Default value is `false`. class IncludeReplicas include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # An ExcludeReplicas contains a repeated set of ReplicaSelection that should # be excluded from serving requests. # @!attribute [rw] replica_selections # @return [::Array<::Google::Cloud::Spanner::V1::DirectedReadOptions::ReplicaSelection>] # The directed read replica selector. class ExcludeReplicas include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#execute_sql ExecuteSql} and # {::Google::Cloud::Spanner::V1::Spanner::Client#execute_streaming_sql ExecuteStreamingSql}. # @!attribute [rw] session # @return [::String] # Required. The session in which the SQL query should be performed. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::TransactionSelector] # The transaction to use. # # For queries, if none is provided, the default is a temporary read-only # transaction with strong concurrency. # # Standard DML statements require a read-write transaction. To protect # against replays, single-use transactions are not supported. The caller # must either supply an existing transaction ID or begin a new transaction. # # Partitioned DML requires an existing Partitioned DML transaction ID. # @!attribute [rw] sql # @return [::String] # Required. The SQL string. # @!attribute [rw] params # @return [::Google::Protobuf::Struct] # Parameter names and values that bind to placeholders in the SQL string. # # A parameter placeholder consists of the `@` character followed by the # parameter name (for example, `@firstName`). Parameter names must conform # to the naming requirements of identifiers as specified at # https://cloud.google.com/spanner/docs/lexical#identifiers. # # Parameters can appear anywhere that a literal value is expected. The same # parameter name can be used more than once, for example: # # `"WHERE id > @msg_id AND id < @msg_id + 100"` # # It is an error to execute a SQL statement with unbound parameters. # @!attribute [rw] param_types # @return [::Google::Protobuf::Map{::String => ::Google::Cloud::Spanner::V1::Type}] # It is not always possible for Cloud Spanner to infer the right SQL type # from a JSON value. For example, values of type `BYTES` and values # of type `STRING` both appear in # {::Google::Cloud::Spanner::V1::ExecuteSqlRequest#params params} as JSON strings. # # In these cases, `param_types` can be used to specify the exact # SQL type for some or all of the SQL statement parameters. See the # definition of {::Google::Cloud::Spanner::V1::Type Type} for more information # about SQL types. # @!attribute [rw] resume_token # @return [::String] # If this request is resuming a previously interrupted SQL statement # execution, `resume_token` should be copied from the last # {::Google::Cloud::Spanner::V1::PartialResultSet PartialResultSet} yielded before the # interruption. Doing this enables the new SQL statement execution to resume # where the last one left off. The rest of the request parameters must # exactly match the request that yielded this token. # @!attribute [rw] query_mode # @return [::Google::Cloud::Spanner::V1::ExecuteSqlRequest::QueryMode] # Used to control the amount of debugging information returned in # {::Google::Cloud::Spanner::V1::ResultSetStats ResultSetStats}. If # {::Google::Cloud::Spanner::V1::ExecuteSqlRequest#partition_token partition_token} is # set, {::Google::Cloud::Spanner::V1::ExecuteSqlRequest#query_mode query_mode} can only # be set to # {::Google::Cloud::Spanner::V1::ExecuteSqlRequest::QueryMode::NORMAL QueryMode.NORMAL}. # @!attribute [rw] partition_token # @return [::String] # If present, results will be restricted to the specified partition # previously created using PartitionQuery(). There must be an exact # match for the values of fields common to this message and the # PartitionQueryRequest message used to create this partition_token. # @!attribute [rw] seqno # @return [::Integer] # A per-transaction sequence number used to identify this request. This field # makes each request idempotent such that if the request is received multiple # times, at most one will succeed. # # The sequence number must be monotonically increasing within the # transaction. If a request arrives for the first time with an out-of-order # sequence number, the transaction may be aborted. Replays of previously # handled requests will yield the same response as the first execution. # # Required for DML statements. Ignored for queries. # @!attribute [rw] query_options # @return [::Google::Cloud::Spanner::V1::ExecuteSqlRequest::QueryOptions] # Query optimizer configuration to use for the given query. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. # @!attribute [rw] directed_read_options # @return [::Google::Cloud::Spanner::V1::DirectedReadOptions] # Directed read options for this request. # @!attribute [rw] data_boost_enabled # @return [::Boolean] # If this is for a partitioned query and this field is set to `true`, the # request is executed with Spanner Data Boost independent compute resources. # # If the field is set to `true` but the request does not set # `partition_token`, the API returns an `INVALID_ARGUMENT` error. class ExecuteSqlRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # Query optimizer configuration. # @!attribute [rw] optimizer_version # @return [::String] # An option to control the selection of optimizer version. # # This parameter allows individual queries to pick different query # optimizer versions. # # Specifying `latest` as a value instructs Cloud Spanner to use the # latest supported query optimizer version. If not specified, Cloud Spanner # uses the optimizer version set at the database level options. Any other # positive integer (from the list of supported optimizer versions) # overrides the default optimizer version for query execution. # # The list of supported optimizer versions can be queried from # SPANNER_SYS.SUPPORTED_OPTIMIZER_VERSIONS. # # Executing a SQL statement with an invalid optimizer version fails with # an `INVALID_ARGUMENT` error. # # See # https://cloud.google.com/spanner/docs/query-optimizer/manage-query-optimizer # for more information on managing the query optimizer. # # The `optimizer_version` statement hint has precedence over this setting. # @!attribute [rw] optimizer_statistics_package # @return [::String] # An option to control the selection of optimizer statistics package. # # This parameter allows individual queries to use a different query # optimizer statistics package. # # Specifying `latest` as a value instructs Cloud Spanner to use the latest # generated statistics package. If not specified, Cloud Spanner uses # the statistics package set at the database level options, or the latest # package if the database option is not set. # # The statistics package requested by the query has to be exempt from # garbage collection. This can be achieved with the following DDL # statement: # # ``` # ALTER STATISTICS SET OPTIONS (allow_gc=false) # ``` # # The list of available statistics packages can be queried from # `INFORMATION_SCHEMA.SPANNER_STATISTICS`. # # Executing a SQL statement with an invalid optimizer statistics package # or with a statistics package that allows garbage collection fails with # an `INVALID_ARGUMENT` error. class QueryOptions include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # @!attribute [rw] key # @return [::String] # @!attribute [rw] value # @return [::Google::Cloud::Spanner::V1::Type] class ParamTypesEntry include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # Mode in which the statement must be processed. module QueryMode # The default mode. Only the statement results are returned. NORMAL = 0 # This mode returns only the query plan, without any results or # execution statistics information. PLAN = 1 # This mode returns both the query plan and the execution statistics along # with the results. PROFILE = 2 end end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#execute_batch_dml ExecuteBatchDml}. # @!attribute [rw] session # @return [::String] # Required. The session in which the DML statements should be performed. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::TransactionSelector] # Required. The transaction to use. Must be a read-write transaction. # # To protect against replays, single-use transactions are not supported. The # caller must either supply an existing transaction ID or begin a new # transaction. # @!attribute [rw] statements # @return [::Array<::Google::Cloud::Spanner::V1::ExecuteBatchDmlRequest::Statement>] # Required. The list of statements to execute in this batch. Statements are # executed serially, such that the effects of statement `i` are visible to # statement `i+1`. Each statement must be a DML statement. Execution stops at # the first failed statement; the remaining statements are not executed. # # Callers must provide at least one statement. # @!attribute [rw] seqno # @return [::Integer] # Required. A per-transaction sequence number used to identify this request. # This field makes each request idempotent such that if the request is # received multiple times, at most one will succeed. # # The sequence number must be monotonically increasing within the # transaction. If a request arrives for the first time with an out-of-order # sequence number, the transaction may be aborted. Replays of previously # handled requests will yield the same response as the first execution. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. class ExecuteBatchDmlRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # A single DML statement. # @!attribute [rw] sql # @return [::String] # Required. The DML string. # @!attribute [rw] params # @return [::Google::Protobuf::Struct] # Parameter names and values that bind to placeholders in the DML string. # # A parameter placeholder consists of the `@` character followed by the # parameter name (for example, `@firstName`). Parameter names can contain # letters, numbers, and underscores. # # Parameters can appear anywhere that a literal value is expected. The # same parameter name can be used more than once, for example: # # `"WHERE id > @msg_id AND id < @msg_id + 100"` # # It is an error to execute a SQL statement with unbound parameters. # @!attribute [rw] param_types # @return [::Google::Protobuf::Map{::String => ::Google::Cloud::Spanner::V1::Type}] # It is not always possible for Cloud Spanner to infer the right SQL type # from a JSON value. For example, values of type `BYTES` and values # of type `STRING` both appear in # {::Google::Cloud::Spanner::V1::ExecuteBatchDmlRequest::Statement#params params} as # JSON strings. # # In these cases, `param_types` can be used to specify the exact # SQL type for some or all of the SQL statement parameters. See the # definition of {::Google::Cloud::Spanner::V1::Type Type} for more information # about SQL types. class Statement include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # @!attribute [rw] key # @return [::String] # @!attribute [rw] value # @return [::Google::Cloud::Spanner::V1::Type] class ParamTypesEntry include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end end # The response for # {::Google::Cloud::Spanner::V1::Spanner::Client#execute_batch_dml ExecuteBatchDml}. Contains a list # of {::Google::Cloud::Spanner::V1::ResultSet ResultSet} messages, one for each DML # statement that has successfully executed, in the same order as the statements # in the request. If a statement fails, the status in the response body # identifies the cause of the failure. # # To check for DML statements that failed, use the following approach: # # 1. Check the status in the response message. The # [google.rpc.Code][google.rpc.Code] enum # value `OK` indicates that all statements were executed successfully. # 2. If the status was not `OK`, check the number of result sets in the # response. If the response contains `N` # {::Google::Cloud::Spanner::V1::ResultSet ResultSet} messages, then statement `N+1` in # the request failed. # # Example 1: # # * Request: 5 DML statements, all executed successfully. # * Response: 5 {::Google::Cloud::Spanner::V1::ResultSet ResultSet} messages, with the # status `OK`. # # Example 2: # # * Request: 5 DML statements. The third statement has a syntax error. # * Response: 2 {::Google::Cloud::Spanner::V1::ResultSet ResultSet} messages, and a syntax # error (`INVALID_ARGUMENT`) # status. The number of {::Google::Cloud::Spanner::V1::ResultSet ResultSet} messages # indicates that the third statement failed, and the fourth and fifth # statements were not executed. # @!attribute [rw] result_sets # @return [::Array<::Google::Cloud::Spanner::V1::ResultSet>] # One {::Google::Cloud::Spanner::V1::ResultSet ResultSet} for each statement in the # request that ran successfully, in the same order as the statements in the # request. Each {::Google::Cloud::Spanner::V1::ResultSet ResultSet} does not contain any # rows. The {::Google::Cloud::Spanner::V1::ResultSetStats ResultSetStats} in each # {::Google::Cloud::Spanner::V1::ResultSet ResultSet} contain the number of rows # modified by the statement. # # Only the first {::Google::Cloud::Spanner::V1::ResultSet ResultSet} in the response # contains valid {::Google::Cloud::Spanner::V1::ResultSetMetadata ResultSetMetadata}. # @!attribute [rw] status # @return [::Google::Rpc::Status] # If all DML statements are executed successfully, the status is `OK`. # Otherwise, the error status of the first failed statement. class ExecuteBatchDmlResponse include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # Options for a PartitionQueryRequest and # PartitionReadRequest. # @!attribute [rw] partition_size_bytes # @return [::Integer] # **Note:** This hint is currently ignored by PartitionQuery and # PartitionRead requests. # # The desired data size for each partition generated. The default for this # option is currently 1 GiB. This is only a hint. The actual size of each # partition may be smaller or larger than this size request. # @!attribute [rw] max_partitions # @return [::Integer] # **Note:** This hint is currently ignored by PartitionQuery and # PartitionRead requests. # # The desired maximum number of partitions to return. For example, this may # be set to the number of workers available. The default for this option # is currently 10,000. The maximum value is currently 200,000. This is only # a hint. The actual number of partitions returned may be smaller or larger # than this maximum count request. class PartitionOptions include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#partition_query PartitionQuery} # @!attribute [rw] session # @return [::String] # Required. The session used to create the partitions. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::TransactionSelector] # Read only snapshot transactions are supported, read/write and single use # transactions are not. # @!attribute [rw] sql # @return [::String] # Required. The query request to generate partitions for. The request will # fail if the query is not root partitionable. For a query to be root # partitionable, it needs to satisfy a few conditions. For example, the first # operator in the query execution plan must be a distributed union operator. # For more information about other conditions, see [Read data in # parallel](https://cloud.google.com/spanner/docs/reads#read_data_in_parallel). # # The query request must not contain DML commands, such as INSERT, UPDATE, or # DELETE. Use # {::Google::Cloud::Spanner::V1::Spanner::Client#execute_streaming_sql ExecuteStreamingSql} with a # PartitionedDml transaction for large, partition-friendly DML operations. # @!attribute [rw] params # @return [::Google::Protobuf::Struct] # Parameter names and values that bind to placeholders in the SQL string. # # A parameter placeholder consists of the `@` character followed by the # parameter name (for example, `@firstName`). Parameter names can contain # letters, numbers, and underscores. # # Parameters can appear anywhere that a literal value is expected. The same # parameter name can be used more than once, for example: # # `"WHERE id > @msg_id AND id < @msg_id + 100"` # # It is an error to execute a SQL statement with unbound parameters. # @!attribute [rw] param_types # @return [::Google::Protobuf::Map{::String => ::Google::Cloud::Spanner::V1::Type}] # It is not always possible for Cloud Spanner to infer the right SQL type # from a JSON value. For example, values of type `BYTES` and values # of type `STRING` both appear in # {::Google::Cloud::Spanner::V1::PartitionQueryRequest#params params} as JSON strings. # # In these cases, `param_types` can be used to specify the exact # SQL type for some or all of the SQL query parameters. See the # definition of {::Google::Cloud::Spanner::V1::Type Type} for more information # about SQL types. # @!attribute [rw] partition_options # @return [::Google::Cloud::Spanner::V1::PartitionOptions] # Additional options that affect how many partitions are created. class PartitionQueryRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # @!attribute [rw] key # @return [::String] # @!attribute [rw] value # @return [::Google::Cloud::Spanner::V1::Type] class ParamTypesEntry include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#partition_read PartitionRead} # @!attribute [rw] session # @return [::String] # Required. The session used to create the partitions. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::TransactionSelector] # Read only snapshot transactions are supported, read/write and single use # transactions are not. # @!attribute [rw] table # @return [::String] # Required. The name of the table in the database to be read. # @!attribute [rw] index # @return [::String] # If non-empty, the name of an index on # {::Google::Cloud::Spanner::V1::PartitionReadRequest#table table}. This index is used # instead of the table primary key when interpreting # {::Google::Cloud::Spanner::V1::PartitionReadRequest#key_set key_set} and sorting # result rows. See {::Google::Cloud::Spanner::V1::PartitionReadRequest#key_set key_set} # for further information. # @!attribute [rw] columns # @return [::Array<::String>] # The columns of {::Google::Cloud::Spanner::V1::PartitionReadRequest#table table} to be # returned for each row matching this request. # @!attribute [rw] key_set # @return [::Google::Cloud::Spanner::V1::KeySet] # Required. `key_set` identifies the rows to be yielded. `key_set` names the # primary keys of the rows in # {::Google::Cloud::Spanner::V1::PartitionReadRequest#table table} to be yielded, unless # {::Google::Cloud::Spanner::V1::PartitionReadRequest#index index} is present. If # {::Google::Cloud::Spanner::V1::PartitionReadRequest#index index} is present, then # {::Google::Cloud::Spanner::V1::PartitionReadRequest#key_set key_set} instead names # index keys in {::Google::Cloud::Spanner::V1::PartitionReadRequest#index 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. # @!attribute [rw] partition_options # @return [::Google::Cloud::Spanner::V1::PartitionOptions] # Additional options that affect how many partitions are created. class PartitionReadRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # Information returned for each partition returned in a # PartitionResponse. # @!attribute [rw] partition_token # @return [::String] # This token can be passed to Read, StreamingRead, ExecuteSql, or # ExecuteStreamingSql requests to restrict the results to those identified by # this partition token. class Partition include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The response for {::Google::Cloud::Spanner::V1::Spanner::Client#partition_query PartitionQuery} # or {::Google::Cloud::Spanner::V1::Spanner::Client#partition_read PartitionRead} # @!attribute [rw] partitions # @return [::Array<::Google::Cloud::Spanner::V1::Partition>] # Partitions created by this request. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::Transaction] # Transaction created by this request. class PartitionResponse include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#read Read} and # {::Google::Cloud::Spanner::V1::Spanner::Client#streaming_read StreamingRead}. # @!attribute [rw] session # @return [::String] # Required. The session in which the read should be performed. # @!attribute [rw] transaction # @return [::Google::Cloud::Spanner::V1::TransactionSelector] # The transaction to use. If none is provided, the default is a # temporary read-only transaction with strong concurrency. # @!attribute [rw] table # @return [::String] # Required. The name of the table in the database to be read. # @!attribute [rw] index # @return [::String] # If non-empty, the name of an index on # {::Google::Cloud::Spanner::V1::ReadRequest#table table}. This index is used instead of # the table primary key when interpreting # {::Google::Cloud::Spanner::V1::ReadRequest#key_set key_set} and sorting result rows. # See {::Google::Cloud::Spanner::V1::ReadRequest#key_set key_set} for further # information. # @!attribute [rw] columns # @return [::Array<::String>] # Required. The columns of {::Google::Cloud::Spanner::V1::ReadRequest#table table} to be # returned for each row matching this request. # @!attribute [rw] key_set # @return [::Google::Cloud::Spanner::V1::KeySet] # Required. `key_set` identifies the rows to be yielded. `key_set` names the # primary keys of the rows in {::Google::Cloud::Spanner::V1::ReadRequest#table table} to # be yielded, unless {::Google::Cloud::Spanner::V1::ReadRequest#index index} is present. # If {::Google::Cloud::Spanner::V1::ReadRequest#index index} is present, then # {::Google::Cloud::Spanner::V1::ReadRequest#key_set key_set} instead names index keys # in {::Google::Cloud::Spanner::V1::ReadRequest#index index}. # # If the {::Google::Cloud::Spanner::V1::ReadRequest#partition_token partition_token} # field is empty, rows are yielded in table primary key order (if # {::Google::Cloud::Spanner::V1::ReadRequest#index index} is empty) or index key order # (if {::Google::Cloud::Spanner::V1::ReadRequest#index index} is non-empty). If the # {::Google::Cloud::Spanner::V1::ReadRequest#partition_token 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. # @!attribute [rw] limit # @return [::Integer] # 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. # @!attribute [rw] resume_token # @return [::String] # If this request is resuming a previously interrupted read, # `resume_token` should be copied from the last # {::Google::Cloud::Spanner::V1::PartialResultSet 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. # @!attribute [rw] partition_token # @return [::String] # 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. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. # @!attribute [rw] directed_read_options # @return [::Google::Cloud::Spanner::V1::DirectedReadOptions] # Directed read options for this request. # @!attribute [rw] data_boost_enabled # @return [::Boolean] # If this is for a partitioned read and this field is set to `true`, the # request is executed with Spanner Data Boost independent compute resources. # # If the field is set to `true` but the request does not set # `partition_token`, the API returns an `INVALID_ARGUMENT` error. class ReadRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for # {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction}. # @!attribute [rw] session # @return [::String] # Required. The session in which the transaction runs. # @!attribute [rw] options # @return [::Google::Cloud::Spanner::V1::TransactionOptions] # Required. Options for the new transaction. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. # Priority is ignored for this request. Setting the priority in this # request_options struct will not do anything. To set the priority for a # transaction, set it on the reads and writes that are part of this # transaction instead. class BeginTransactionRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#commit Commit}. # @!attribute [rw] session # @return [::String] # Required. The session in which the transaction to be committed is running. # @!attribute [rw] transaction_id # @return [::String] # Commit a previously-started transaction. # @!attribute [rw] single_use_transaction # @return [::Google::Cloud::Spanner::V1::TransactionOptions] # 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 # {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction} and # {::Google::Cloud::Spanner::V1::Spanner::Client#commit Commit} instead. # @!attribute [rw] mutations # @return [::Array<::Google::Cloud::Spanner::V1::Mutation>] # The mutations to be executed when this transaction commits. All # mutations are applied atomically, in the order they appear in # this list. # @!attribute [rw] return_commit_stats # @return [::Boolean] # If `true`, then statistics related to the transaction will be included in # the {::Google::Cloud::Spanner::V1::CommitResponse#commit_stats CommitResponse}. # Default value is `false`. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. class CommitRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#rollback Rollback}. # @!attribute [rw] session # @return [::String] # Required. The session in which the transaction to roll back is running. # @!attribute [rw] transaction_id # @return [::String] # Required. The transaction to roll back. class RollbackRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end # The request for {::Google::Cloud::Spanner::V1::Spanner::Client#batch_write BatchWrite}. # @!attribute [rw] session # @return [::String] # Required. The session in which the batch request is to be run. # @!attribute [rw] request_options # @return [::Google::Cloud::Spanner::V1::RequestOptions] # Common options for this request. # @!attribute [rw] mutation_groups # @return [::Array<::Google::Cloud::Spanner::V1::BatchWriteRequest::MutationGroup>] # Required. The groups of mutations to be applied. class BatchWriteRequest include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods # A group of mutations to be committed together. Related mutations should be # placed in a group. For example, two mutations inserting rows with the same # primary key prefix in both parent and child tables are related. # @!attribute [rw] mutations # @return [::Array<::Google::Cloud::Spanner::V1::Mutation>] # Required. The mutations in this group. class MutationGroup include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end # The result of applying a batch of mutations. # @!attribute [rw] indexes # @return [::Array<::Integer>] # The mutation groups applied in this batch. The values index into the # `mutation_groups` field in the corresponding `BatchWriteRequest`. # @!attribute [rw] status # @return [::Google::Rpc::Status] # An `OK` status indicates success. Any other status indicates a failure. # @!attribute [rw] commit_timestamp # @return [::Google::Protobuf::Timestamp] # The commit timestamp of the transaction that applied this batch. # Present if `status` is `OK`, absent otherwise. class BatchWriteResponse include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end end end end end