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Posted to commits@arrow.apache.org by jo...@apache.org on 2021/04/18 14:51:54 UTC
[arrow-rs] 02/03: Flatten directory.

This is an automated email from the ASF dual-hosted git repository.

jorgecarleitao pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/arrow-rs.git

commit 77caed688512d71c074414e5c143edca63202379
Author: Jorge C. Leitao <jo...@gmail.com>
AuthorDate: Sun Apr 18 14:50:11 2021 +0000

    Flatten directory.
---
 .gitignore                                         |  87 +------
 rust/Cargo.toml => Cargo.toml                      |   0
 README.md                                          | 254 ++++++++++++++-------
 {rust/arrow-flight => arrow-flight}/Cargo.toml     |   0
 {rust/arrow-flight => arrow-flight}/README.md      |   0
 {rust/arrow-flight => arrow-flight}/build.rs       |   0
 .../examples/server.rs                             |   0
 .../src/arrow.flight.protocol.rs                   |   0
 {rust/arrow-flight => arrow-flight}/src/lib.rs     |   0
 {rust/arrow-flight => arrow-flight}/src/utils.rs   |   0
 .../.cargo/config                                  |   0
 .../.gitignore                                     |   0
 .../Cargo.toml                                     |   0
 .../README.md                                      |   0
 .../pyproject.toml                                 |   0
 .../src/lib.rs                                     |   0
 .../tests/test_sql.py                              |   0
 {rust/arrow => arrow}/Cargo.toml                   |   0
 {rust/arrow => arrow}/README.md                    |   0
 {rust/arrow => arrow}/benches/aggregate_kernels.rs |   0
 .../arrow => arrow}/benches/arithmetic_kernels.rs  |   0
 {rust/arrow => arrow}/benches/array_from_vec.rs    |   0
 {rust/arrow => arrow}/benches/array_slice.rs       |   0
 {rust/arrow => arrow}/benches/bit_length_kernel.rs |   0
 {rust/arrow => arrow}/benches/boolean_kernels.rs   |   0
 {rust/arrow => arrow}/benches/buffer_bit_ops.rs    |   0
 {rust/arrow => arrow}/benches/buffer_create.rs     |   0
 {rust/arrow => arrow}/benches/builder.rs           |   0
 {rust/arrow => arrow}/benches/cast_kernels.rs      |   0
 .../arrow => arrow}/benches/comparison_kernels.rs  |   0
 .../arrow => arrow}/benches/concatenate_kernel.rs  |   0
 {rust/arrow => arrow}/benches/csv_writer.rs        |   0
 {rust/arrow => arrow}/benches/equal.rs             |   0
 {rust/arrow => arrow}/benches/filter_kernels.rs    |   0
 {rust/arrow => arrow}/benches/json_reader.rs       |   0
 {rust/arrow => arrow}/benches/length_kernel.rs     |   0
 {rust/arrow => arrow}/benches/mutable_array.rs     |   0
 {rust/arrow => arrow}/benches/sort_kernel.rs       |   0
 {rust/arrow => arrow}/benches/take_kernels.rs      |   0
 {rust/arrow => arrow}/build.rs                     |   0
 {rust/arrow => arrow}/examples/builders.rs         |   0
 {rust/arrow => arrow}/examples/dynamic_types.rs    |   0
 {rust/arrow => arrow}/examples/read_csv.rs         |   0
 .../examples/read_csv_infer_schema.rs              |   0
 {rust/arrow => arrow}/examples/tensor_builder.rs   |   0
 {rust/arrow => arrow}/format-0ed34c83.patch        |   0
 {rust/arrow => arrow}/regen.sh                     |   0
 {rust/arrow => arrow}/src/alloc/alignment.rs       |   0
 {rust/arrow => arrow}/src/alloc/mod.rs             |   0
 {rust/arrow => arrow}/src/alloc/types.rs           |   0
 {rust/arrow => arrow}/src/arch/avx512.rs           |   0
 {rust/arrow => arrow}/src/arch/mod.rs              |   0
 {rust/arrow => arrow}/src/array/array.rs           |   0
 {rust/arrow => arrow}/src/array/array_binary.rs    |   0
 {rust/arrow => arrow}/src/array/array_boolean.rs   |   0
 .../arrow => arrow}/src/array/array_dictionary.rs  |   0
 {rust/arrow => arrow}/src/array/array_list.rs      |   0
 {rust/arrow => arrow}/src/array/array_primitive.rs |   0
 {rust/arrow => arrow}/src/array/array_string.rs    |   0
 {rust/arrow => arrow}/src/array/array_struct.rs    |   0
 {rust/arrow => arrow}/src/array/array_union.rs     |   0
 {rust/arrow => arrow}/src/array/builder.rs         |   0
 {rust/arrow => arrow}/src/array/cast.rs            |   0
 {rust/arrow => arrow}/src/array/data.rs            |   0
 {rust/arrow => arrow}/src/array/equal/boolean.rs   |   0
 {rust/arrow => arrow}/src/array/equal/decimal.rs   |   0
 .../arrow => arrow}/src/array/equal/dictionary.rs  |   0
 .../src/array/equal/fixed_binary.rs                |   0
 .../arrow => arrow}/src/array/equal/fixed_list.rs  |   0
 {rust/arrow => arrow}/src/array/equal/list.rs      |   0
 {rust/arrow => arrow}/src/array/equal/mod.rs       |   0
 {rust/arrow => arrow}/src/array/equal/null.rs      |   0
 {rust/arrow => arrow}/src/array/equal/primitive.rs |   0
 {rust/arrow => arrow}/src/array/equal/structure.rs |   0
 {rust/arrow => arrow}/src/array/equal/utils.rs     |   0
 .../src/array/equal/variable_size.rs               |   0
 {rust/arrow => arrow}/src/array/equal_json.rs      |   0
 {rust/arrow => arrow}/src/array/ffi.rs             |   0
 {rust/arrow => arrow}/src/array/iterator.rs        |   0
 {rust/arrow => arrow}/src/array/mod.rs             |   0
 {rust/arrow => arrow}/src/array/null.rs            |   0
 {rust/arrow => arrow}/src/array/ord.rs             |   0
 {rust/arrow => arrow}/src/array/raw_pointer.rs     |   0
 .../arrow => arrow}/src/array/transform/boolean.rs |   0
 .../src/array/transform/fixed_binary.rs            |   0
 {rust/arrow => arrow}/src/array/transform/list.rs  |   0
 {rust/arrow => arrow}/src/array/transform/mod.rs   |   0
 {rust/arrow => arrow}/src/array/transform/null.rs  |   0
 .../src/array/transform/primitive.rs               |   0
 .../src/array/transform/structure.rs               |   0
 {rust/arrow => arrow}/src/array/transform/utils.rs |   0
 .../src/array/transform/variable_size.rs           |   0
 {rust/arrow => arrow}/src/bitmap.rs                |   0
 {rust/arrow => arrow}/src/buffer/immutable.rs      |   0
 {rust/arrow => arrow}/src/buffer/mod.rs            |   0
 {rust/arrow => arrow}/src/buffer/mutable.rs        |   0
 {rust/arrow => arrow}/src/buffer/ops.rs            |   0
 {rust/arrow => arrow}/src/bytes.rs                 |   0
 .../src/compute/kernels/aggregate.rs               |   0
 .../src/compute/kernels/arithmetic.rs              |   0
 {rust/arrow => arrow}/src/compute/kernels/arity.rs |   0
 .../arrow => arrow}/src/compute/kernels/boolean.rs |   0
 {rust/arrow => arrow}/src/compute/kernels/cast.rs  |   0
 .../src/compute/kernels/cast_utils.rs              |   0
 .../src/compute/kernels/comparison.rs              |   0
 .../arrow => arrow}/src/compute/kernels/concat.rs  |   0
 .../arrow => arrow}/src/compute/kernels/filter.rs  |   0
 .../arrow => arrow}/src/compute/kernels/length.rs  |   0
 {rust/arrow => arrow}/src/compute/kernels/limit.rs |   0
 {rust/arrow => arrow}/src/compute/kernels/mod.rs   |   0
 .../arrow => arrow}/src/compute/kernels/regexp.rs  |   0
 {rust/arrow => arrow}/src/compute/kernels/sort.rs  |   0
 .../src/compute/kernels/substring.rs               |   0
 {rust/arrow => arrow}/src/compute/kernels/take.rs  |   0
 .../src/compute/kernels/temporal.rs                |   0
 .../arrow => arrow}/src/compute/kernels/window.rs  |   0
 {rust/arrow => arrow}/src/compute/kernels/zip.rs   |   0
 {rust/arrow => arrow}/src/compute/mod.rs           |   0
 {rust/arrow => arrow}/src/compute/util.rs          |   0
 {rust/arrow => arrow}/src/csv/mod.rs               |   0
 {rust/arrow => arrow}/src/csv/reader.rs            |   0
 {rust/arrow => arrow}/src/csv/writer.rs            |   0
 {rust/arrow => arrow}/src/datatypes/datatype.rs    |   0
 {rust/arrow => arrow}/src/datatypes/field.rs       |   0
 {rust/arrow => arrow}/src/datatypes/mod.rs         |   0
 {rust/arrow => arrow}/src/datatypes/native.rs      |   0
 {rust/arrow => arrow}/src/datatypes/numeric.rs     |   0
 {rust/arrow => arrow}/src/datatypes/schema.rs      |   0
 {rust/arrow => arrow}/src/datatypes/types.rs       |   0
 {rust/arrow => arrow}/src/error.rs                 |   0
 {rust/arrow => arrow}/src/ffi.rs                   |   0
 {rust/arrow => arrow}/src/ipc/convert.rs           |   0
 {rust/arrow => arrow}/src/ipc/gen/File.rs          |   0
 {rust/arrow => arrow}/src/ipc/gen/Message.rs       |   0
 {rust/arrow => arrow}/src/ipc/gen/Schema.rs        |   0
 {rust/arrow => arrow}/src/ipc/gen/SparseTensor.rs  |   0
 {rust/arrow => arrow}/src/ipc/gen/Tensor.rs        |   0
 {rust/arrow => arrow}/src/ipc/gen/mod.rs           |   0
 {rust/arrow => arrow}/src/ipc/mod.rs               |   0
 {rust/arrow => arrow}/src/ipc/reader.rs            |   0
 {rust/arrow => arrow}/src/ipc/writer.rs            |   0
 {rust/arrow => arrow}/src/json/mod.rs              |   0
 {rust/arrow => arrow}/src/json/reader.rs           |   0
 {rust/arrow => arrow}/src/json/writer.rs           |   0
 {rust/arrow => arrow}/src/lib.rs                   |   0
 {rust/arrow => arrow}/src/record_batch.rs          |   0
 {rust/arrow => arrow}/src/temporal_conversions.rs  |   0
 {rust/arrow => arrow}/src/tensor.rs                |   0
 {rust/arrow => arrow}/src/util/bench_util.rs       |   0
 .../arrow => arrow}/src/util/bit_chunk_iterator.rs |   0
 {rust/arrow => arrow}/src/util/bit_util.rs         |   0
 {rust/arrow => arrow}/src/util/data_gen.rs         |   0
 {rust/arrow => arrow}/src/util/display.rs          |   0
 {rust/arrow => arrow}/src/util/integration_util.rs |   0
 {rust/arrow => arrow}/src/util/mod.rs              |   0
 {rust/arrow => arrow}/src/util/pretty.rs           |   0
 {rust/arrow => arrow}/src/util/serialization.rs    |   0
 {rust/arrow => arrow}/src/util/string_writer.rs    |   0
 {rust/arrow => arrow}/src/util/test_util.rs        |   0
 {rust/arrow => arrow}/src/util/trusted_len.rs      |   0
 {rust/arrow => arrow}/src/zz_memory_check.rs       |   0
 {rust/arrow => arrow}/test/data/arrays.json        |   0
 {rust/arrow => arrow}/test/data/basic.json         |   0
 {rust/arrow => arrow}/test/data/basic_nulls.json   |   0
 {rust/arrow => arrow}/test/data/integration.json   |   0
 .../test/data/list_string_dict_nested.json         |   0
 .../test/data/list_string_dict_nested_nulls.json   |   0
 {rust/arrow => arrow}/test/data/mixed_arrays.json  |   0
 .../arrow => arrow}/test/data/mixed_arrays.json.gz | Bin
 .../arrow => arrow}/test/data/nested_structs.json  |   0
 {rust/arrow => arrow}/test/data/null_test.csv      |   0
 {rust/arrow => arrow}/test/data/uk_cities.csv      |   0
 .../test/data/uk_cities_with_headers.csv           |   0
 {rust/arrow => arrow}/test/data/various_types.csv  |   0
 .../test/data/various_types_invalid.csv            |   0
 .../Cargo.toml                                     |   0
 .../README.md                                      |   0
 .../src/bin/arrow-file-to-stream.rs                |   0
 .../src/bin/arrow-json-integration-test.rs         |   0
 .../src/bin/arrow-stream-to-file.rs                |   0
 .../src/bin/flight-test-integration-client.rs      |   0
 .../src/bin/flight-test-integration-server.rs      |   0
 .../src/flight_client_scenarios.rs                 |   0
 .../flight_client_scenarios/auth_basic_proto.rs    |   0
 .../flight_client_scenarios/integration_test.rs    |   0
 .../src/flight_client_scenarios/middleware.rs      |   0
 .../src/flight_server_scenarios.rs                 |   0
 .../flight_server_scenarios/auth_basic_proto.rs    |   0
 .../flight_server_scenarios/integration_test.rs    |   0
 .../src/flight_server_scenarios/middleware.rs      |   0
 .../src/lib.rs                                     |   0
 {rust/parquet => parquet}/Cargo.toml               |   0
 {rust/parquet => parquet}/README.md                |   0
 {rust/parquet => parquet}/benches/arrow_writer.rs  |   0
 {rust/parquet => parquet}/build.rs                 |   0
 .../parquet => parquet}/src/arrow/array_reader.rs  |   0
 .../parquet => parquet}/src/arrow/arrow_reader.rs  |   0
 .../parquet => parquet}/src/arrow/arrow_writer.rs  |   0
 {rust/parquet => parquet}/src/arrow/converter.rs   |   0
 {rust/parquet => parquet}/src/arrow/levels.rs      |   0
 {rust/parquet => parquet}/src/arrow/mod.rs         |   0
 .../parquet => parquet}/src/arrow/record_reader.rs |   0
 {rust/parquet => parquet}/src/arrow/schema.rs      |   0
 {rust/parquet => parquet}/src/basic.rs             |   0
 {rust/parquet => parquet}/src/bin/parquet-read.rs  |   0
 .../src/bin/parquet-rowcount.rs                    |   0
 .../parquet => parquet}/src/bin/parquet-schema.rs  |   0
 {rust/parquet => parquet}/src/column/mod.rs        |   0
 {rust/parquet => parquet}/src/column/page.rs       |   0
 {rust/parquet => parquet}/src/column/reader.rs     |   0
 {rust/parquet => parquet}/src/column/writer.rs     |   0
 {rust/parquet => parquet}/src/compression.rs       |   0
 {rust/parquet => parquet}/src/data_type.rs         |   0
 .../parquet => parquet}/src/encodings/decoding.rs  |   0
 .../parquet => parquet}/src/encodings/encoding.rs  |   0
 {rust/parquet => parquet}/src/encodings/levels.rs  |   0
 {rust/parquet => parquet}/src/encodings/mod.rs     |   0
 {rust/parquet => parquet}/src/encodings/rle.rs     |   0
 {rust/parquet => parquet}/src/errors.rs            |   0
 {rust/parquet => parquet}/src/file/footer.rs       |   0
 {rust/parquet => parquet}/src/file/metadata.rs     |   0
 {rust/parquet => parquet}/src/file/mod.rs          |   0
 {rust/parquet => parquet}/src/file/properties.rs   |   0
 {rust/parquet => parquet}/src/file/reader.rs       |   0
 .../src/file/serialized_reader.rs                  |   0
 {rust/parquet => parquet}/src/file/statistics.rs   |   0
 {rust/parquet => parquet}/src/file/writer.rs       |   0
 {rust/parquet => parquet}/src/lib.rs               |   0
 {rust/parquet => parquet}/src/record/api.rs        |   0
 {rust/parquet => parquet}/src/record/mod.rs        |   0
 {rust/parquet => parquet}/src/record/reader.rs     |   0
 .../src/record/record_writer.rs                    |   0
 {rust/parquet => parquet}/src/record/triplet.rs    |   0
 {rust/parquet => parquet}/src/schema/mod.rs        |   0
 {rust/parquet => parquet}/src/schema/parser.rs     |   0
 {rust/parquet => parquet}/src/schema/printer.rs    |   0
 {rust/parquet => parquet}/src/schema/types.rs      |   0
 {rust/parquet => parquet}/src/schema/visitor.rs    |   0
 {rust/parquet => parquet}/src/util/bit_packing.rs  |   0
 {rust/parquet => parquet}/src/util/bit_util.rs     |   0
 {rust/parquet => parquet}/src/util/cursor.rs       |   0
 {rust/parquet => parquet}/src/util/hash_util.rs    |   0
 {rust/parquet => parquet}/src/util/io.rs           |   0
 {rust/parquet => parquet}/src/util/memory.rs       |   0
 {rust/parquet => parquet}/src/util/mod.rs          |   0
 .../src/util/test_common/file_util.rs              |   0
 .../src/util/test_common/mod.rs                    |   0
 .../src/util/test_common/page_util.rs              |   0
 .../src/util/test_common/rand_gen.rs               |   0
 {rust/parquet => parquet}/tests/custom_writer.rs   |   0
 {rust/parquet_derive => parquet_derive}/Cargo.toml |   0
 {rust/parquet_derive => parquet_derive}/README.md  |   0
 {rust/parquet_derive => parquet_derive}/src/lib.rs |   0
 .../src/parquet_field.rs                           |   0
 .../Cargo.toml                                     |   0
 .../src/lib.rs                                     |   0
 rust/pre-commit.sh => pre-commit.sh                |   0
 rust/.gitignore                                    |   5 -
 rust/README.md                                     | 186 ---------------
 rust/rustfmt.toml => rustfmt.toml                  |   0
 260 files changed, 172 insertions(+), 360 deletions(-)

diff --git a/.gitignore b/.gitignore
index 6f12336..389f4ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,82 +1,5 @@
-# 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-rat-*.jar
-arrow-src.tar
-arrow-src.tar.gz
-
-# Compiled source
-*.a
-*.dll
-*.o
-*.py[ocd]
-*.so
-*.so.*
-*.bundle
-*.dylib
-.build_cache_dir
-dependency-reduced-pom.xml
-MANIFEST
-compile_commands.json
-build.ninja
-
-# Generated Visual Studio files
-*.vcxproj
-*.vcxproj.*
-*.sln
-*.iml
-
-# Linux perf sample data
-perf.data
-perf.data.old
-
-cpp/.idea/
-.clangd/
-cpp/.clangd/
-cpp/apidoc/xml/
-docs/example.gz
-docs/example1.dat
-docs/example3.dat
-python/.eggs/
-python/doc/
-# Egg metadata
-*.egg-info
-
-.vscode
-.idea/
-.pytest_cache/
-pkgs
-docker_cache
-.gdb_history
-*.orig
-.*.swp
-.*.swo
-
-site/
-
-# R files
-**/.Rproj.user
-**/*.Rcheck/
-**/.Rhistory
-.Rproj.user
-
-# macOS
-cpp/Brewfile.lock.json
-.DS_Store
-
-# docker volumes used for caching
-.docker
+Cargo.lock
+target
+rusty-tags.vi
+.history
+.flatbuffers/
diff --git a/rust/Cargo.toml b/Cargo.toml
similarity index 100%
rename from rust/Cargo.toml
rename to Cargo.toml
diff --git a/README.md b/README.md
index 133018c..7fdef29 100644
--- a/README.md
+++ b/README.md
@@ -17,90 +17,170 @@
   under the License.
 -->
 
-# Apache Arrow
-
-[![Build Status](https://ci.appveyor.com/api/projects/status/github/apache/arrow/branch/master?svg=true)](https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/branch/master)
-[![Coverage Status](https://codecov.io/gh/apache/arrow/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/arrow?branch=master)
-[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/arrow.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:arrow)
-[![License](http://img.shields.io/:license-Apache%202-blue.svg)](https://github.com/apache/arrow/blob/master/LICENSE.txt)
-[![Twitter Follow](https://img.shields.io/twitter/follow/apachearrow.svg?style=social&label=Follow)](https://twitter.com/apachearrow)
-
-## Powering In-Memory Analytics
-
-Apache Arrow is a development platform for in-memory analytics. It contains a
-set of technologies that enable big data systems to process and move data fast.
-
-Major components of the project include:
-
- - [The Arrow Columnar In-Memory Format](https://github.com/apache/arrow/blob/master/docs/source/format/Columnar.rst):
-   a standard and efficient in-memory representation of various datatypes, plain or nested
- - [The Arrow IPC Format](https://github.com/apache/arrow/blob/master/docs/source/format/Columnar.rst#serialization-and-interprocess-communication-ipc):
-   an efficient serialization of the Arrow format and associated metadata,
-   for communication between processes and heterogeneous environments
- - [The Arrow Flight RPC protocol](https://github.com/apache/arrow/tree/master/format/Flight.proto):
-   based on the Arrow IPC format, a building block for remote services exchanging
-   Arrow data with application-defined semantics (for example a storage server or a database)
- - [C++ libraries](https://github.com/apache/arrow/tree/master/cpp)
- - [C bindings using GLib](https://github.com/apache/arrow/tree/master/c_glib)
- - [C# .NET libraries](https://github.com/apache/arrow/tree/master/csharp)
- - [Gandiva](https://github.com/apache/arrow/tree/master/cpp/src/gandiva):
-   an [LLVM](https://llvm.org)-based Arrow expression compiler, part of the C++ codebase
- - [Go libraries](https://github.com/apache/arrow/tree/master/go)
- - [Java libraries](https://github.com/apache/arrow/tree/master/java)
- - [JavaScript libraries](https://github.com/apache/arrow/tree/master/js)
- - [Plasma Object Store](https://github.com/apache/arrow/tree/master/cpp/src/plasma):
-   a shared-memory blob store, part of the C++ codebase
- - [Python libraries](https://github.com/apache/arrow/tree/master/python)
- - [R libraries](https://github.com/apache/arrow/tree/master/r)
- - [Ruby libraries](https://github.com/apache/arrow/tree/master/ruby)
- - [Rust libraries](https://github.com/apache/arrow/tree/master/rust)
-
-Arrow is an [Apache Software Foundation](https://www.apache.org) project. Learn more at
-[arrow.apache.org](https://arrow.apache.org).
-
-## What's in the Arrow libraries?
-
-The reference Arrow libraries contain many distinct software components:
-
-- Columnar vector and table-like containers (similar to data frames) supporting
-  flat or nested types
-- Fast, language agnostic metadata messaging layer (using Google's Flatbuffers
-  library)
-- Reference-counted off-heap buffer memory management, for zero-copy memory
-  sharing and handling memory-mapped files
-- IO interfaces to local and remote filesystems
-- Self-describing binary wire formats (streaming and batch/file-like) for
-  remote procedure calls (RPC) and interprocess communication (IPC)
-- Integration tests for verifying binary compatibility between the
-  implementations (e.g. sending data from Java to C++)
-- Conversions to and from other in-memory data structures
-- Readers and writers for various widely-used file formats (such as Parquet, CSV)
-
-## Implementation status
-
-The official Arrow libraries in this repository are in different stages of
-implementing the Arrow format and related features.  See our current
-[feature matrix](https://github.com/apache/arrow/blob/master/docs/source/status.rst)
-on git master.
-
-## How to Contribute
-
-Please read our latest [project contribution guide][5].
-
-## Getting involved
-
-Even if you do not plan to contribute to Apache Arrow itself or Arrow
-integrations in other projects, we'd be happy to have you involved:
-
-- Join the mailing list: send an email to
-  [dev-subscribe@arrow.apache.org][1]. Share your ideas and use cases for the
-  project.
-- [Follow our activity on JIRA][3]
-- [Learn the format][2]
-- Contribute code to one of the reference implementations
-
-[1]: mailto:dev-subscribe@arrow.apache.org
-[2]: https://github.com/apache/arrow/tree/master/format
-[3]: https://issues.apache.org/jira/browse/ARROW
-[4]: https://github.com/apache/arrow
-[5]: https://github.com/apache/arrow/blob/master/docs/source/developers/contributing.rst
+# Native Rust implementation of Apache Arrow
+
+[![Coverage Status](https://codecov.io/gh/apache/arrow/rust/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/arrow?branch=master)
+
+Welcome to the implementation of Arrow, the popular in-memory columnar format, in [Rust](https://www.rust-lang.org/).
+
+This part of the Arrow project is divided in 4 main components:
+
+| Crate     | Description | Documentation |
+|-----------|-------------|---------------|
+|Arrow        | Core functionality (memory layout, arrays, low level computations) | [(README)](arrow/README.md) |
+|Parquet      | Parquet support | [(README)](parquet/README.md) |
+|Arrow-flight | Arrow data between processes | [(README)](arrow-flight/README.md) |
+|DataFusion   | In-memory query engine with SQL support | [(README)](datafusion/README.md) |
+|Ballista     | Distributed query execution | [(README)](ballista/README.md) |
+
+Independently, they support a vast array of functionality for in-memory computations.
+
+Together, they allow users to write an SQL query or a `DataFrame` (using the `datafusion` crate), run it against a parquet file (using the `parquet` crate), evaluate it in-memory using Arrow's columnar format (using the `arrow` crate), and send to another process (using the `arrow-flight` crate).
+
+Generally speaking, the `arrow` crate offers functionality to develop code that uses Arrow arrays, and `datafusion` offers most operations typically found in SQL, with the notable exceptions of:
+
+* `join`
+* `window` functions
+
+There are too many features to enumerate here, but some notable mentions:
+
+* `Arrow` implements all formats in the specification except certain dictionaries
+* `Arrow` supports SIMD operations to some of its vertical operations
+* `DataFusion` supports `async` execution
+* `DataFusion` supports user-defined functions, aggregates, and whole execution nodes
+
+You can find more details about each crate in their respective READMEs.
+
+## Arrow Rust Community
+
+We use the official [ASF Slack](https://s.apache.org/slack-invite) for informal discussions and coordination. This is 
+a great place to meet other contributors and get guidance on where to contribute. Join us in the `arrow-rust` channel.
+
+We use [ASF JIRA](https://issues.apache.org/jira/secure/Dashboard.jspa) as the system of record for new features
+and bug fixes and this plays a critical role in the release process.
+
+For design discussions we generally collaborate on Google documents and file a JIRA linking to the document.
+
+There is also a bi-weekly Rust-specific sync call for the Arrow Rust community. This is hosted on Google Meet
+at https://meet.google.com/ctp-yujs-aee on alternate Wednesday's at 09:00 US/Pacific, 12:00 US/Eastern. During 
+US daylight savings time this corresponds to 16:00 UTC and at other times this is 17:00 UTC.
+
+## Developer's guide to Arrow Rust
+
+### How to compile
+
+This is a standard cargo project with workspaces. To build it, you need to have `rust` and `cargo`:
+
+```bash
+cd /rust && cargo build
+```
+
+You can also use rust's official docker image:
+
+```bash
+docker run --rm -v $(pwd)/rust:/rust -it rust /bin/bash -c "cd /rust && cargo build"
+```
+
+The command above assumes that are in the root directory of the project, not in the same
+directory as this README.md.
+
+You can also compile specific workspaces:
+
+```bash
+cd /rust/arrow && cargo build
+```
+
+### Git Submodules
+
+Before running tests and examples, it is necessary to set up the local development environment.
+
+The tests rely on test data that is contained in git submodules.
+
+To pull down this data run the following:
+
+```bash
+git submodule update --init
+```
+
+This populates data in two git submodules:
+
+- `../cpp/submodules/parquet_testing/data` (sourced from https://github.com/apache/parquet-testing.git)
+- `../testing` (sourced from https://github.com/apache/arrow-testing)
+
+By default, `cargo test` will look for these directories at their
+standard location. The following environment variables can be used to override the location:
+
+```bash
+# Optionaly specify a different location for test data
+export PARQUET_TEST_DATA=$(cd ../cpp/submodules/parquet-testing/data; pwd)
+export ARROW_TEST_DATA=$(cd ../testing/data; pwd)
+```
+
+From here on, this is a pure Rust project and `cargo` can be used to run tests, benchmarks, docs and examples as usual.
+
+
+### Running the tests
+
+Run tests using the Rust standard `cargo test` command:
+
+```bash
+# run all tests.
+cargo test
+
+
+# run only tests for the arrow crate
+cargo test -p arrow
+```
+
+## Code Formatting
+
+Our CI uses `rustfmt` to check code formatting. Before submitting a
+PR be sure to run the following and check for lint issues:
+
+```bash
+cargo +stable fmt --all -- --check
+```
+
+## Clippy Lints
+
+We recommend using `clippy` for checking lints during development. While we do not yet enforce `clippy` checks, we recommend not introducing new `clippy` errors or warnings.
+
+Run the following to check for clippy lints.
+
+```
+cargo clippy
+```
+
+If you use Visual Studio Code with the `rust-analyzer` plugin, you can enable `clippy` to run each time you save a file. See https://users.rust-lang.org/t/how-to-use-clippy-in-vs-code-with-rust-analyzer/41881.
+
+One of the concerns with `clippy` is that it often produces a lot of false positives, or that some recommendations may hurt readability. We do not have a policy of which lints are ignored, but if you disagree with a `clippy` lint, you may disable the lint and briefly justify it.
+
+Search for `allow(clippy::` in the codebase to identify lints that are ignored/allowed. We currently prefer ignoring lints on the lowest unit possible.
+* If you are introducing a line that returns a lint warning or error, you may disable the lint on that line.
+* If you have several lints on a function or module, you may disable the lint on the function or module.
+* If a lint is pervasive across multiple modules, you may disable it at the crate level.
+
+## Git Pre-Commit Hook
+
+We can use [git pre-commit hook](https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks) to automate various kinds of git pre-commit checking/formatting.
+
+Suppose you are in the root directory of the project.
+
+First check if the file already exists:
+
+```bash
+ls -l .git/hooks/pre-commit
+```
+
+If the file already exists, to avoid mistakenly **overriding**, you MAY have to check
+the link source or file content. Else if not exist, let's safely soft link [pre-commit.sh](pre-commit.sh) as file `.git/hooks/pre-commit`:
+
+```
+ln -s  ../../rust/pre-commit.sh .git/hooks/pre-commit
+```
+
+If sometimes you want to commit without checking, just run `git commit` with `--no-verify`:
+
+```bash
+git commit --no-verify -m "... commit message ..."
+```
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diff --git a/rust/parquet/build.rs b/parquet/build.rs
similarity index 100%
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rename to parquet/build.rs
diff --git a/rust/parquet/src/arrow/array_reader.rs b/parquet/src/arrow/array_reader.rs
similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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rename to parquet/src/bin/parquet-rowcount.rs
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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similarity index 100%
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diff --git a/rust/parquet_derive/src/parquet_field.rs b/parquet_derive/src/parquet_field.rs
similarity index 100%
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rename to parquet_derive/src/parquet_field.rs
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similarity index 100%
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rename to parquet_derive_test/src/lib.rs
diff --git a/rust/pre-commit.sh b/pre-commit.sh
similarity index 100%
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rename to pre-commit.sh
diff --git a/rust/.gitignore b/rust/.gitignore
deleted file mode 100644
index 389f4ab..0000000
--- a/rust/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-Cargo.lock
-target
-rusty-tags.vi
-.history
-.flatbuffers/
diff --git a/rust/README.md b/rust/README.md
deleted file mode 100644
index 7fdef29..0000000
--- a/rust/README.md
+++ /dev/null
@@ -1,186 +0,0 @@
-<!---
-  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.
--->
-
-# Native Rust implementation of Apache Arrow
-
-[![Coverage Status](https://codecov.io/gh/apache/arrow/rust/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/arrow?branch=master)
-
-Welcome to the implementation of Arrow, the popular in-memory columnar format, in [Rust](https://www.rust-lang.org/).
-
-This part of the Arrow project is divided in 4 main components:
-
-| Crate     | Description | Documentation |
-|-----------|-------------|---------------|
-|Arrow        | Core functionality (memory layout, arrays, low level computations) | [(README)](arrow/README.md) |
-|Parquet      | Parquet support | [(README)](parquet/README.md) |
-|Arrow-flight | Arrow data between processes | [(README)](arrow-flight/README.md) |
-|DataFusion   | In-memory query engine with SQL support | [(README)](datafusion/README.md) |
-|Ballista     | Distributed query execution | [(README)](ballista/README.md) |
-
-Independently, they support a vast array of functionality for in-memory computations.
-
-Together, they allow users to write an SQL query or a `DataFrame` (using the `datafusion` crate), run it against a parquet file (using the `parquet` crate), evaluate it in-memory using Arrow's columnar format (using the `arrow` crate), and send to another process (using the `arrow-flight` crate).
-
-Generally speaking, the `arrow` crate offers functionality to develop code that uses Arrow arrays, and `datafusion` offers most operations typically found in SQL, with the notable exceptions of:
-
-* `join`
-* `window` functions
-
-There are too many features to enumerate here, but some notable mentions:
-
-* `Arrow` implements all formats in the specification except certain dictionaries
-* `Arrow` supports SIMD operations to some of its vertical operations
-* `DataFusion` supports `async` execution
-* `DataFusion` supports user-defined functions, aggregates, and whole execution nodes
-
-You can find more details about each crate in their respective READMEs.
-
-## Arrow Rust Community
-
-We use the official [ASF Slack](https://s.apache.org/slack-invite) for informal discussions and coordination. This is 
-a great place to meet other contributors and get guidance on where to contribute. Join us in the `arrow-rust` channel.
-
-We use [ASF JIRA](https://issues.apache.org/jira/secure/Dashboard.jspa) as the system of record for new features
-and bug fixes and this plays a critical role in the release process.
-
-For design discussions we generally collaborate on Google documents and file a JIRA linking to the document.
-
-There is also a bi-weekly Rust-specific sync call for the Arrow Rust community. This is hosted on Google Meet
-at https://meet.google.com/ctp-yujs-aee on alternate Wednesday's at 09:00 US/Pacific, 12:00 US/Eastern. During 
-US daylight savings time this corresponds to 16:00 UTC and at other times this is 17:00 UTC.
-
-## Developer's guide to Arrow Rust
-
-### How to compile
-
-This is a standard cargo project with workspaces. To build it, you need to have `rust` and `cargo`:
-
-```bash
-cd /rust && cargo build
-```
-
-You can also use rust's official docker image:
-
-```bash
-docker run --rm -v $(pwd)/rust:/rust -it rust /bin/bash -c "cd /rust && cargo build"
-```
-
-The command above assumes that are in the root directory of the project, not in the same
-directory as this README.md.
-
-You can also compile specific workspaces:
-
-```bash
-cd /rust/arrow && cargo build
-```
-
-### Git Submodules
-
-Before running tests and examples, it is necessary to set up the local development environment.
-
-The tests rely on test data that is contained in git submodules.
-
-To pull down this data run the following:
-
-```bash
-git submodule update --init
-```
-
-This populates data in two git submodules:
-
-- `../cpp/submodules/parquet_testing/data` (sourced from https://github.com/apache/parquet-testing.git)
-- `../testing` (sourced from https://github.com/apache/arrow-testing)
-
-By default, `cargo test` will look for these directories at their
-standard location. The following environment variables can be used to override the location:
-
-```bash
-# Optionaly specify a different location for test data
-export PARQUET_TEST_DATA=$(cd ../cpp/submodules/parquet-testing/data; pwd)
-export ARROW_TEST_DATA=$(cd ../testing/data; pwd)
-```
-
-From here on, this is a pure Rust project and `cargo` can be used to run tests, benchmarks, docs and examples as usual.
-
-
-### Running the tests
-
-Run tests using the Rust standard `cargo test` command:
-
-```bash
-# run all tests.
-cargo test
-
-
-# run only tests for the arrow crate
-cargo test -p arrow
-```
-
-## Code Formatting
-
-Our CI uses `rustfmt` to check code formatting. Before submitting a
-PR be sure to run the following and check for lint issues:
-
-```bash
-cargo +stable fmt --all -- --check
-```
-
-## Clippy Lints
-
-We recommend using `clippy` for checking lints during development. While we do not yet enforce `clippy` checks, we recommend not introducing new `clippy` errors or warnings.
-
-Run the following to check for clippy lints.
-
-```
-cargo clippy
-```
-
-If you use Visual Studio Code with the `rust-analyzer` plugin, you can enable `clippy` to run each time you save a file. See https://users.rust-lang.org/t/how-to-use-clippy-in-vs-code-with-rust-analyzer/41881.
-
-One of the concerns with `clippy` is that it often produces a lot of false positives, or that some recommendations may hurt readability. We do not have a policy of which lints are ignored, but if you disagree with a `clippy` lint, you may disable the lint and briefly justify it.
-
-Search for `allow(clippy::` in the codebase to identify lints that are ignored/allowed. We currently prefer ignoring lints on the lowest unit possible.
-* If you are introducing a line that returns a lint warning or error, you may disable the lint on that line.
-* If you have several lints on a function or module, you may disable the lint on the function or module.
-* If a lint is pervasive across multiple modules, you may disable it at the crate level.
-
-## Git Pre-Commit Hook
-
-We can use [git pre-commit hook](https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks) to automate various kinds of git pre-commit checking/formatting.
-
-Suppose you are in the root directory of the project.
-
-First check if the file already exists:
-
-```bash
-ls -l .git/hooks/pre-commit
-```
-
-If the file already exists, to avoid mistakenly **overriding**, you MAY have to check
-the link source or file content. Else if not exist, let's safely soft link [pre-commit.sh](pre-commit.sh) as file `.git/hooks/pre-commit`:
-
-```
-ln -s  ../../rust/pre-commit.sh .git/hooks/pre-commit
-```
-
-If sometimes you want to commit without checking, just run `git commit` with `--no-verify`:
-
-```bash
-git commit --no-verify -m "... commit message ..."
-```
diff --git a/rust/rustfmt.toml b/rustfmt.toml
similarity index 100%
rename from rust/rustfmt.toml
rename to rustfmt.toml