Class ExecuteSqlRequest.Types.QueryOptions (3.5.0) 

public sealed class QueryOptions : IMessage<ExecuteSqlRequest.Types.QueryOptions>, IEquatable<ExecuteSqlRequest.Types.QueryOptions>, IDeepCloneable<ExecuteSqlRequest.Types.QueryOptions>, IBufferMessage, IMessage

Query optimizer configuration.

Inheritance

Object > ExecuteSqlRequest.Types.QueryOptions

Implements

Google.Protobuf.IMessage<ExecuteSqlRequest.Types.QueryOptions>, IEquatable<ExecuteSqlRequest.Types.QueryOptions>, Google.Protobuf.IDeepCloneable<ExecuteSqlRequest.Types.QueryOptions>, Google.Protobuf.IBufferMessage, Google.Protobuf.IMessage

Namespace

Google.Cloud.Spanner.V1

Assembly

Google.Cloud.Spanner.V1.dll

Constructors

QueryOptions()

public QueryOptions()

QueryOptions(ExecuteSqlRequest.Types.QueryOptions)

public QueryOptions(ExecuteSqlRequest.Types.QueryOptions other)
Parameter
NameDescription
otherExecuteSqlRequest.Types.QueryOptions

Properties

OptimizerVersion

public string OptimizerVersion { get; set; }

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 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 will fail with a syntax error (INVALID_ARGUMENT) status. 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.

Property Value
TypeDescription
String