| commit | 996dbe456af68892fd182b02db72b699ac40e6e9 | [log] [tgz] |
|---|---|---|
| author | Ashish <mysticlama000@gmail.com> | Sat Dec 09 13:39:06 2023 -0800 |
| committer | GitHub <noreply@github.com> | Sat Dec 09 13:39:06 2023 -0800 |
| tree | 05f313264bba349f57190275a68ae4ef423c481f | |
| parent | 441f6e6a240ede183486f53444423c13b8c27f9e [diff] |
ORC-FORMAT-10: Updated Maven version to 3.9.6 (#11) ### What changes were proposed in this pull request? This closes #10. The PR aims at upgrading Maven version to 3.9.6 ### Why are the changes needed? The details are captured as part of PR https://github.com/apache/orc/pull/1687 ### How was this patch tested? Local build to be successful and CI passes
ORC is a self-describing type-aware columnar file format designed for Hadoop workloads. It is optimized for large streaming reads, but with integrated support for finding required rows quickly. Storing data in a columnar format lets the reader read, decompress, and process only the values that are required for the current query. Because ORC files are type-aware, the writer chooses the most appropriate encoding for the type and builds an internal index as the file is written. Predicate pushdown uses those indexes to determine which stripes in a file need to be read for a particular query and the row indexes can narrow the search to a particular set of 10,000 rows. ORC supports the complete set of types in Hive, including the complex types: structs, lists, maps, and unions.
This project includes ORC specifications and the protobuf definition. Apache ORC Format 1.0.0 is desinged to be used for Apache ORC 2.0+.
Releases:
The current build status:
Bug tracking: Apache ORC Format Issues
./mvnw install