ump45nose commented on code in PR #485: URL: https://github.com/apache/arrow-dotnet/pull/485#discussion_r4348768560
########## src/README.md: ########## @@ -0,0 +1,61 @@ +<!--- + Licensed to the Apache Software Foundation (ASF) under one + or more contributor license agreements. See the NOTICE file + distributed with this work for additional information + regarding copyright ownership. The ASF licenses this file + to you 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. +--> + +# Apache Arrow .NET + +[Apache Arrow](https://arrow.apache.org/) is a universal columnar format and +multi-language toolbox for fast data interchange and in-memory analytics. +This package is part of the .NET implementation of Apache Arrow. + +## Packages + +- `Apache.Arrow`: the core library (arrays, schemas, record batches and the + Arrow IPC stream and file formats). +- `Apache.Arrow.Compression`: LZ4 frame and Zstandard codecs for compressed + Arrow IPC data. +- `Apache.Arrow.Flight`: Arrow Flight client and server. +- `Apache.Arrow.Flight.AspNetCore`: ASP.NET Core integration for Arrow Flight servers. +- `Apache.Arrow.Flight.Sql`: Arrow Flight SQL client and server. +- `Apache.Arrow.Operations`: codecs for the Variant binary format, including a + JSON reader and writer. +- `Apache.Arrow.Scalars`: scalar types, including readers, writers and an object + model for the Parquet Variant binary format. + +## Usage + +```csharp +using System.IO; +using System.Threading.Tasks; +using Apache.Arrow; +using Apache.Arrow.Ipc; + +public static async Task<RecordBatch> ReadArrowAsync(string filename) Review Comment: Thanks @adamreeve. In 27ade26 the example now starts with "Example of reading all record batches from an Arrow IPC file", and it reads every batch into a `List<RecordBatch>` until `ReadNextRecordBatchAsync()` returns null, so copying it no longer silently drops data. (AI-assisted reply.) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
