Package liborc1: Information
Binary package: liborc1
Version: 1.8.3-alt1
Architecture: aarch64
Build time: May 23, 2023, 12:44 AM in the task #320225
Source package: apache-orc
Category: System/Libraries
Report package bugDownload: liborc1-1.8.3-alt1.aarch64.rpm
Home page: http://orc.apache.org/
License: Apache-2.0
Summary: Library for producing small, fast columnar storage for Hadoop workloads
Description:
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.
Maintainer: Alexey Shabalin