class Google::Apis::SpannerV1::PartitionQueryRequest

The request for PartitionQuery

Attributes

param_types[RW]

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` @return [Hash<String,Google::Apis::SpannerV1::Type>]

params[RW]

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` @return [Hash<String,Object>]

partition_options[RW]

Options for a PartitionQueryRequest and PartitionReadRequest. Corresponds to the JSON property `partitionOptions` @return [Google::Apis::SpannerV1::PartitionOptions]

sql[RW]

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` @return [String]

transaction[RW]

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` @return [Google::Apis::SpannerV1::TransactionSelector]

Public Class Methods

new(**args) click to toggle source
# File lib/google/apis/spanner_v1/classes.rb, line 2744
def initialize(**args)
   update!(**args)
end

Public Instance Methods

update!(**args) click to toggle source

Update properties of this object

# File lib/google/apis/spanner_v1/classes.rb, line 2749
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