Class: Google::Apis::SpannerV1::PartitionQueryRequest

Inherits:
Object
  • Object
show all
Includes:
Core::Hashable, Core::JsonObjectSupport
Defined in:
lib/google/apis/spanner_v1/classes.rb,
lib/google/apis/spanner_v1/representations.rb,
lib/google/apis/spanner_v1/representations.rb

Overview

The request for PartitionQuery

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ PartitionQueryRequest

Returns a new instance of PartitionQueryRequest.



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# File 'lib/google/apis/spanner_v1/classes.rb', line 2147

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#param_types ⇒ Hash<String,Google::Apis::SpannerV1::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 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 Type for more information about SQL types. Corresponds to the JSON property paramTypes

Returns:



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# File 'lib/google/apis/spanner_v1/classes.rb', line 2111

def param_types
  @param_types
end

#params ⇒ Hash<String,Object>

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. Corresponds to the JSON property params

Returns:

  • (Hash<String,Object>) 


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# File 'lib/google/apis/spanner_v1/classes.rb', line 2122

def params
  @params
end

#partition_options ⇒ Google::Apis::SpannerV1::PartitionOptions

Options for a PartitionQueryRequest and PartitionReadRequest. Corresponds to the JSON property partitionOptions

Returns:



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# File 'lib/google/apis/spanner_v1/classes.rb', line 2127

def partition_options
  @partition_options
end

#sql ⇒ String

Required. The query request to generate partitions for. The request will fail if the query is not root partitionable. The query plan of a root partitionable query has a single distributed union operator. A distributed union operator conceptually divides one or more tables into multiple splits, remotely evaluates a subquery independently on each split, and then unions all results. This must not contain DML commands, such as INSERT, UPDATE, or DELETE. Use ExecuteStreamingSql with a PartitionedDml transaction for large, partition- friendly DML operations. Corresponds to the JSON property sql

Returns:

  • (String) 


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# File 'lib/google/apis/spanner_v1/classes.rb', line 2139

def sql
  @sql
end

#transaction ⇒ Google::Apis::SpannerV1::TransactionSelector

This message is used to select the transaction in which a Read or ExecuteSql call runs. See TransactionOptions for more information about transactions. Corresponds to the JSON property transaction

Returns:



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# File 'lib/google/apis/spanner_v1/classes.rb', line 2145

def transaction
  @transaction
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object



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# File 'lib/google/apis/spanner_v1/classes.rb', line 2152

def update!(**args)
  @param_types = args[:param_types] if args.key?(:param_types)
  @params = args[:params] if args.key?(:params)
  @partition_options = args[:partition_options] if args.key?(:partition_options)
  @sql = args[:sql] if args.key?(:sql)
  @transaction = args[:transaction] if args.key?(:transaction)
end