[GitHub] [arrow-site] lwhite1 commented on a diff in pull request #227: Version 9.0.0 release blog post

[GitBox <gi...@apache.org>]

lwhite1 commented on code in PR #227:
URL: https://github.com/apache/arrow-site/pull/227#discussion_r935943114


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_posts/2022-08-01-9.0.0-release.md:
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+---
+layout: post
+title: "Apache Arrow 9.0.0 Release"
+date: "2022-08-01 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 9.0.0 release. This covers
+over 3 months of development work and includes [**473 resolved issues**][1]
+from [**YYY distinct contributors**][2]. See the Install Page 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 8.0.0 release, Dewey Dunnington, Alenka Frim and Rok Mihevc
+have been invited to be committers.
+Thanks for your contributions and participation in the project!
+
+## Columnar Format Notes
+
+## Arrow Flight RPC notes
+
+Arrow Flight is now available in MacOS M1 Python wheels ([ARROW-16779](https://issues.apache.org/jira/browse/ARROW-16779)).
+Arrow Flight SQL is now buildable on Windows ([ARROW-16902](https://issues.apache.org/jira/browse/ARROW-16902)).
+Ruby now exposes more of the Flight and Flight SQL APIs (various JIRAs). 
+
+## C++ notes
+
+STL-like iteration is now provided over chunked arrays (ARROW-602).
+
+### Compute
+
+The C++ compute and execution engine is now officially named "Acero", though
+its C++ namespaces have not changed.
+
+New light-weight data holder abstractions have been introduced in order
+to reduce the overhead of invoking compute functions and kernels, especially
+at the small data sizes desirable for efficient parallelization (typically
+L1- or L2-sized).  Specifically, the non-owning `ArraySpan` and `ExecSpan`
+structures have internally superseded the much heavier `ExecBatch`, which
+is still supported for compatibility at the API level
+(ARROW-16756, ARROW-16824, ARROW-16852).
+
+In a similar vein, the `ValueDescr` class was removed and `ScalarKernel`
+implementations now always receive at least one non-scalar input, removing
+the special case where a `ScalarKernel` needs to output a scalar rather than
+an array. The higher-level compute APIs still allow executing a scalar function
+over all-scalar inputs; but those scalars are internally broadcasted to
+1-element arrays so as to simplify kernel implementation (ARROW-16757).
+
+Timestamp comparison is now supported (ARROW-16425).
+
+A cumulative sum function is implemented over numeric inputs (ARROW-13530).
+
+Temporal rounding functions received additional options to control how
+rounding is done (ARROW-14821).
+
+Improper computation of the "mode" function on boolean input was fixed
+(ARROW-17096).
+
+Function registries can now be nested (ARROW-16677).
+
+### Dataset
+
+The `autogenerate_column_names` option for CSV reading is now handled correctly
+(ARROW-16436).
+
+Fix `InMemoryDataset::ReplaceSchema` to actually replace the schema
+(ARROW-16085).
+
+Fix `FilenamePartitioning` to properly support null values (ARROW-16302).
+
+### Filesystem
+
+A number of bugfixes and improvements were made to the Google Cloud Storage
+filesystem implementation (ARROW-14892).
+
+By default, the S3 filesystem implementation does not create or drop buckets
+anymore (ARROW-15906). This is a compatibility-breaking change intended
+to prevent user errors from having potentially catastrophic consequences.
+Options have been added to restore the previous behavior if necessary.
+
+### Parquet
+
+The default Parquet version is now 2.4 for writing, enabling use of
+more recent logical types by default (ARROW-12203).
+
+Non-nullable fields are now handled correctly by the Parquet reader
+(ARROW-16116).
+
+Reading encrypted files should now be thread-safe (ARROW-14114).
+
+Statistics equality now works correctly with minmax (ARROW-16487).
+
+The minimum Thrift version required for building is now 0.13 (ARROW-16721).
+
+The Thrift deserialization limits can now be configured to accomodate for
+data files with very large metadata (ARROW-16546).
+
+### Substrait
+
+The Substrait spec has been updated to 0.6.0 (ARROW-16816). In addition, a
+larger subset of the Substrait specification is now supported (ARROW-15587,
+ARROW-15590, ARROW-15901, ARROW-16657, ARROW-15591).
+
+## C# notes
+
+#### New Features
+
+* Added support for Add support for Time32Array and Time64Array ([ARROW-16660](https://github.com/apache/arrow/pull/13279))
+
+## Go notes
+
+## Java notes
+

Review Comment:
   #### New Features
   * Allow overriding column nullability in arrow-jdbc ([#13558](https://github.com/apache/arrow/pull/13558))
   * Enable skip BOUNDS_CHECKING with setBytes and getBytes of ArrowBuf ([#13161](https://github.com/apache/arrow/pull/13161))
   * Initialize JNI components on use instead of statically ([#13146](https://github.com/apache/arrow/pull/13146))
   * Provide explicit JDBC column type mapping ([#13166](https://github.com/apache/arrow/pull/13166))
   * Allow duplicated field names in Java C data interface ([#13247](https://github.com/apache/arrow/pull/13247))
   * Improve and document StackTrace ([#12656](https://github.com/apache/arrow/pull/12656))
   * Keep more context when marshaling errors through JNI ([#13246](https://github.com/apache/arrow/pull/13246))
   * Make RoundingMode configurable to handle inconsistent scale in BigDecimals ([#13433](https://github.com/apache/arrow/pull/13433))
   * Improve Java dev experience with IntelliJ ([#13017](https://github.com/apache/arrow/pull/13017))
   * Implement ArrowArrayStream ([#13465](https://github.com/apache/arrow/pull/13465)))
   
   #### Bug Fixes
   * Fix variable-width vectors in integration JSON writer ([#13676](https://github.com/apache/arrow/pull/13676))
   * Handle empty JDBC ResultSet ([#13049](https://github.com/apache/arrow/pull/13049))
   * Fix hasNext() in ArrowVectorIterator ([#13107](https://github.com/apache/arrow/pull/13107))
   * Fix ArrayConsumer when using ArrowVectorIterator ([#12692](https://github.com/apache/arrow/pull/12692))
   * Update Gandiva Protobuf library to enable builds on Apple M1 ([#13121](https://github.com/apache/arrow/pull/13121))
   * Patch dataset module testing failure with JSE11+ ([#13200](https://github.com/apache/arrow/pull/13200))
   * Don't duplicate generated Protobuf classes between flight-core and flight-sql ([#13596](https://github.com/apache/arrow/pull/13596))



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