GoogleApi.Spanner.V1.Model.PartitionQueryRequest (google_api_spanner v0.32.0) View Source

The request for PartitionQuery


  • paramTypes (type: %{optional(String.t) => GoogleApi.Spanner.V1.Model.Type.t}, default: nil) - 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.
  • params (type: map(), default: nil) - 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.
  • partitionOptions (type: GoogleApi.Spanner.V1.Model.PartitionOptions.t, default: nil) - Additional options that affect how many partitions are created.
  • sql (type: String.t, default: nil) - 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.
  • transaction (type: GoogleApi.Spanner.V1.Model.TransactionSelector.t, default: nil) - Read only snapshot transactions are supported, read/write and single use transactions are not.

Link to this section Summary


Unwrap a decoded JSON object into its complex fields.

Link to this section Types


t() :: %GoogleApi.Spanner.V1.Model.PartitionQueryRequest{
    %{optional(String.t()) => GoogleApi.Spanner.V1.Model.Type.t()} | nil,
  params: map() | nil,
  partitionOptions: GoogleApi.Spanner.V1.Model.PartitionOptions.t() | nil,
  sql: String.t() | nil,
  transaction: GoogleApi.Spanner.V1.Model.TransactionSelector.t() | nil

Link to this section Functions


decode(struct(), keyword()) :: struct()

Unwrap a decoded JSON object into its complex fields.