Class Transaction (3.50.1)

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Transaction(mapping=None, *, ignore_unknown_fields=False, **kwargs)

A transaction.

Attributes
Name	Description
id	bytes id may be used to identify the transaction in subsequent Read][google.spanner.v1.Spanner.Read], ExecuteSql][google.spanner.v1.Spanner.ExecuteSql], Commit][google.spanner.v1.Spanner.Commit], or Rollback][google.spanner.v1.Spanner.Rollback] calls. Single-use read-only transactions do not have IDs, because single-use transactions do not support multiple requests.
read_timestamp	google.protobuf.timestamp_pb2.Timestamp For snapshot read-only transactions, the read timestamp chosen for the transaction. Not returned by default: see TransactionOptions.ReadOnly.return_read_timestamp][google.spanner.v1.TransactionOptions.ReadOnly.return_read_timestamp]. A timestamp in RFC3339 UTC "Zulu" format, accurate to nanoseconds. Example: "2014-10-02T15:01:23.045123456Z".
precommit_token	google.cloud.spanner_v1.types.MultiplexedSessionPrecommitToken A precommit token will be included in the response of a BeginTransaction request if the read-write transaction is on a multiplexed session and a mutation_key was specified in the BeginTransaction][google.spanner.v1.BeginTransactionRequest]. The precommit token with the highest sequence number from this transaction attempt should be passed to the Commit][google.spanner.v1.Spanner.Commit] request for this transaction. This feature is not yet supported and will result in an UNIMPLEMENTED error.