mirror of
https://github.com/apache/impala.git
synced 2026-01-07 09:02:19 -05:00
e151ebaa71
Bit and byte functions for compatibility with Teradata: bitand, bitor, bitxor, bitnot, countset, getbit, setbit, shiftleft, shiftright, rotateleft, rotateright. Interfaces and behavior follow Teradata documentation. All bit* functions are compatible with DB2. bitand only is compatible with Oracle. Change-Id: Idba3fb7beb029de493b602e6279aa68e32688df3
Welcome to Impala
Lightning-fast, distributed SQL queries for petabytes of data stored in Apache Hadoop clusters.
Impala is a modern, massively-distributed, massively-parallel, C++ query engine that lets you analyze, transform and combine data from a variety of data sources:
- Best of breed performance and scalability.
- Support for data stored in HDFS, Apache HBase and Amazon S3.
- Wide analytic SQL support, including window functions and subqueries.
- On-the-fly code generation using LLVM to generate CPU-efficient code tailored specifically to each individual query.
- Support for the most commonly-used Hadoop file formats, including the Apache Parquet (incubating) project.
- Apache-licensed, 100% open source.
More about Impala
To learn more about Impala as a business user, or to try Impala live or in a VM, please visit the Impala homepage.
If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.