[GitHub] [arrow-site] raulcd commented on a diff in pull request #346: [Website] Version 12.0.0 blog post

["raulcd (via GitHub)" <gi...@apache.org>]

raulcd commented on code in PR #346:
URL: https://github.com/apache/arrow-site/pull/346#discussion_r1183727075


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_posts/2023-05-02-12.0.0-release.md:
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+---
+layout: post
+title: "Apache Arrow 12.0.0 Release"
+date: "2023-05-02 00:00:00"
+author: pmc
+categories: [release]
+---
+<!--
+{% comment %}
+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.
+{% endcomment %}
+-->
+
+
+The Apache Arrow team is pleased to announce the 12.0.0 release. This covers
+over 3 months of development work and includes [**476 resolved issues**][1]
+with [**531 commits from 97 distinct contributors**][2].
+See the [Install Page](https://arrow.apache.org/install/)
+to learn how to get the libraries for your platform.
+
+The release notes below are not exhaustive and only expose selected highlights
+of the release. Many other bugfixes and improvements have been made: we refer
+you to the [complete changelog][3].
+
+## Community
+
+Since the 11.0.0 release, Wang Mingming, Mustafa Akur and Ruihang Xia
+have been invited to be committers.
+Will Jones have joined the Project Management Committee (PMC).
+
+Thanks for your contributions and participation in the project!
+
+## Columnar Format Notes
+
+A first "canonical" extension type has been formalized: `arrow.fixed_shape_tensor` to
+represent an Array where each slot contains a tensor, with all tensors having the same
+dimension and shape. This is based on a Fixed-Size List layout as storage array
+(https://arrow.apache.org/docs/dev/format/CanonicalExtensions.html#fixed-shape-tensor-extension).
+
+## Arrow Flight RPC notes
+
+The JDBC driver for Arrow Flight SQL has had some bugfixes, and has been refactored into a core library (which is not distributed as an uberjar with shaded names) and a driver (which is distributed as an uberjar).
+
+The Java server builder API now offers easier access to the underlying gRPC builder.
+
+Go now implements the Flight SQL extensions for Substrait and transaction support.
+
+## Plasma notes
+
+Plasma was deprecated since 10.0.0. Plasma is removed in this
+release. [GH-33243][GH-33243]
+
+## C++ notes
+
+* Run-End Encoded Arrays have been implemented and are accessible ([GH-32104](https://github.com/apache/arrow/issues/32104))
+* The FixedShapeTensor Logical value type has been implemented using ExtensionType ([GH-15483](https://github.com/apache/arrow/issues/15483), [GH-34796](https://github.com/apache/arrow/issues/34796))
+
+### Compute
+
+* New kernel to convert timestamp with timezone to wall time ([GH-33143](https://github.com/apache/arrow/issues/33143))
+* Cast kernels are now built into libarrow by default ([GH-34388](https://github.com/apache/arrow/issues/34388))
+
+### Acero
+
+* Acero has been moved out of libarrow into it's own shared library, allowing for smaller builds of the core libarrow ([GH-15280](https://github.com/apache/arrow/issues/15280))
+* Exec nodes now can have a concept of "ordering" and will reject non-sensible plans ([GH-34136](https://github.com/apache/arrow/issues/34136))
+* New exec nodes: "pivot_longer" ([GH-34266](https://github.com/apache/arrow/issues/34266)), "order_by" ([GH-34248](https://github.com/apache/arrow/issues/34248)) and "fetch" ([GH-34059](https://github.com/apache/arrow/issues/34059))
+* Reorder output fields of "group_by" node so that keys/segment keys come before aggregates ([GH-33616](https://github.com/apache/arrow/issues/33616))
+
+### Parquet
+
+* Added support for DeltaLengthByteArray encoding to the Parquet writer ([GH-33024](https://github.com/apache/arrow/issues/33024))
+* NaNs are correctly handled now for Parquet predicate push-downs ([GH-18481](https://github.com/apache/arrow/issues/18481))
+* Added support for reading Parquet page indexes ([GH-33596](https://github.com/apache/arrow/issues/33596)) and writing page indexes ([GH-34053](https://github.com/apache/arrow/issues/34053))
+* Parquet writer can write columns in parallel now ([GH-33655](https://github.com/apache/arrow/issues/33655))
+* Fixed incorrect number of rows in Parquet V2 page headers ([GH-34086](https://github.com/apache/arrow/issues/34086))
+* Fixed incorrect Parquet page null_count when stats are disabled ([GH-34326](https://github.com/apache/arrow/issues/34326))
+* Added support for reading BloomFilters to the Parquet Reader ([GH-34665](https://github.com/apache/arrow/issues/34665))
+* Parquet File-writer can now add additional key-value metadata after it has been opened ([GH-34888](https://github.com/apache/arrow/issues/34888))
+
+### ORC
+
+* Added support for the union type in ORC writer ([GH-34262](https://github.com/apache/arrow/issues/34262))
+* Fixed ORC CHAR type mapping with Arrow ([GH-34823](https://github.com/apache/arrow/issues/34823))
+* Fixed timestamp type mapping between ORC and arrow ([GH-34590](https://github.com/apache/arrow/issues/34590))
+
+### Datasets
+
+* Added support for reading JSON datasets ([GH-33209](https://github.com/apache/arrow/issues/33209))
+* Dataset writer now supports specifying a function callback to construct the file name in addition to the existing file name template ([GH-34565](https://github.com/apache/arrow/issues/34565))
+
+### Filesystems
+
+* GcsFileSystem::OpenInputFile avoids unnecessary downloads ([GH-34051](https://github.com/apache/arrow/issues/34051))
+
+### Other changes
+
+* Convenience Append(std::optional<T>...) methods have been added to array builders ([GH-14863](https://github.com/apache/arrow/issues/14863))
+* A deprecated OpenTelemetry header was removed from the Flight library ([GH-34417](https://github.com/apache/arrow/issues/34417))
+* Fixed crash in "take" kernels on ExtensionArrays with an underlying dictionary type ([GH-34619](https://github.com/apache/arrow/issues/34619))
+* Fixed bug where the C-Data bridge did not preserve nullability of map values on import ([GH-34983](https://github.com/apache/arrow/issues/34983))
+* Added support for EqualOptions to RecordBatch::Equals ([GH-34968](https://github.com/apache/arrow/issues/34968))
+* zstd dependency upgraded to v1.5.5 ([GH-34899](https://github.com/apache/arrow/issues/34899))
+* Improved handling of "logical" nulls such as with union and RunEndEncoded arrays ([GH-34361](https://github.com/apache/arrow/issues/34361))
+* Fixed incorrect handling of uncompressed body buffers in IPC reader, added IpcWriteOptions::min_space_savings for optional compression optimizations ([GH-15102](https://github.com/apache/arrow/issues/15102))
+
+## C# notes

Review Comment:
   ```suggestion
   ## C# notes
   
   * Added support for Float 16 [GH-25163](https://github.com/apache/arrow/issues/25163)
   * Added decompression support for Record Batches [GH-32240](https://github.com/apache/arrow/issues/32240) and added new Apache.Arrow.Compression package.
   * Define C Data Interface for schemas and types [GH-34737](https://github.com/apache/arrow/issues/34737)
   ```
   @westonpace @wjones127 @eerhardt 
   I tried to add some of the relevant notes I found, let me know if those are ok with you?
   This is the link with the C# issues closed on the 12.0.0 release



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