Class PartitionQueryRequest

The request for PartitionQuery

Inheritance
System.Object
PartitionQueryRequest
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Google.Apis.Spanner.v1.Data
Assembly: Google.Apis.Spanner.v1.dll
Syntax
public class PartitionQueryRequest : IDirectResponseSchema

Properties

ETag

The ETag of the item.

Declaration
public virtual string ETag { get; set; }
Property Value
Type Description
System.String

Params__

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.
Declaration
[JsonProperty("params")]
public virtual IDictionary<string, object> Params__ { get; set; }
Property Value
Type Description
System.Collections.Generic.IDictionary<System.String, System.Object>

ParamTypes

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.

Declaration
[JsonProperty("paramTypes")]
public virtual IDictionary<string, Type> ParamTypes { get; set; }
Property Value
Type Description
System.Collections.Generic.IDictionary<System.String, Type>

PartitionOptions

Additional options that affect how many partitions are created.

Declaration
[JsonProperty("partitionOptions")]
public virtual PartitionOptions PartitionOptions { get; set; }
Property Value
Type Description
PartitionOptions

Sql

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.

Declaration
[JsonProperty("sql")]
public virtual string Sql { get; set; }
Property Value
Type Description
System.String

Transaction

Read only snapshot transactions are supported, read/write and single use transactions are not.

Declaration
[JsonProperty("transaction")]
public virtual TransactionSelector Transaction { get; set; }
Property Value
Type Description
TransactionSelector

Implements