v2.0.1

Milestone

• https://github.com/apache/orc/milestone/29

Branch

• v2.0.0...v2.0.1

Improvements (tools)

• ORC-1644: Add merge tool to merge multiple ORC files into a single ORC file
• ORC-1647: Tips for supporting ORC in the convert command
• ORC-1667: Add check tool to check the index of the specified column

Bug Fix

• ORC-1646: Close the reader when reading the schema with the convert command
• ORC-1654: [C++] Count up EvaluatedRowGroupCount correctly
• ORC-1684: [C++] Find tzdb without TZDIR when in conda-environments
• ORC-1688: [C++] Do not access TZDB if there is no timestamp type
• ORC-1696: Fix ClassCastException when reading avro decimal type in bechmark

Task

• ORC-1649:[C++][Conan] Add 2.0.0 to conan recipe and update release guide
• ORC-1669: [C++] Deprecate HDFS support
• ORC-1686: [C++] Avoid using std::filesystem

Test

• ORC-1648: Add test to convert ORC in the convert command
• ORC-1663: [C++] Enable TestTimezone.testMissingTZDB on Windows
• ORC-1672: Remove test packages o.a.o.tools.check
• ORC-1673: Remove test packages o.a.o.tools.[count|merge|sizes]
• ORC-1676: Use Hive 4.0.0 in benchmark
• ORC-1681: Remove redundant import statement in tests to fix checkstyle failures
• ORC-1699: Fix SparkBenchmark in Parquet format according to SPARK-40918
• ORC-1704: Migration to Scala 2.13 of Apache Spark 3.5.1 at SparkBenchmark
• ORC-1707: Fix sun.util.calendar IllegalAccessException when SparkBenchmark runs on JDK17
• ORC-1708: Support data/compress options in Hive benchmark

Build and Dependency Changes

• ORC-1670: Upgrade zstd-jni to 1.5.6-1
• ORC-1679: Bump zstd-jni to 1.5.6-2
• ORC-1695: Upgrade gson to 2.10.1
• ORC-1698: Upgrade commons-cli to 1.7.0
• ORC-1705: Upgrade zstd-jni to 1.5.6-3
• ORC-1714: Bump commons-csv to 1.11.0
• ORC-1715: Bump org.objenesis:objenesis to 3.3

Documentation

• ORC-1668: Add merge command to Java tools documentation