forked from googleapis/python-bigquery-storage
/
arrow.proto
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/
arrow.proto
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.cloud.bigquery.storage.v1beta2;
option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1beta2;storage";
option java_multiple_files = true;
option java_outer_classname = "ArrowProto";
option java_package = "com.google.cloud.bigquery.storage.v1beta2";
// Arrow schema as specified in
// https://arrow.apache.org/docs/python/api/datatypes.html
// and serialized to bytes using IPC:
// https://arrow.apache.org/docs/format/Columnar.html#serialization-and-interprocess-communication-ipc
//
// See code samples on how this message can be deserialized.
message ArrowSchema {
// IPC serialized Arrow schema.
bytes serialized_schema = 1;
}
// Arrow RecordBatch.
message ArrowRecordBatch {
// IPC-serialized Arrow RecordBatch.
bytes serialized_record_batch = 1;
}
// Contains options specific to Arrow Serialization.
message ArrowSerializationOptions {
// The IPC format to use when serializing Arrow streams.
enum Format {
// If unspecied the IPC format as of 0.15 release will be used.
FORMAT_UNSPECIFIED = 0;
// Use the legacy IPC message format as of Apache Arrow Release 0.14.
ARROW_0_14 = 1;
// Use the message format as of Apache Arrow Release 0.15.
ARROW_0_15 = 2;
}
// The Arrow IPC format to use.
Format format = 1;
}