cbcda93dfb
This change fixes two problems: 1. The query options OPTIMIZE_PARTITION_KEY_SCANS and DISABLE_STREAMING_PREAGGREGATIONS are both boolean so they should accept 'true' and '1' as input values. Previously, these two options are treated as int and value such as 'true' doesn't work with them. 2. The break statement in the case statement of the option SCAN_NODE_CODEGEN_THRESHOLD was 'stolen' by the option DISABLE_STREAMING_PREAGGREGATIONS when it was added. This change adds the missing break statement back for SCAN_NODE_CODEGEN_THRESHOLD. Change-Id: I5c74a1e5c49e3bda15a91b40740fc7310303207b Reviewed-on: http://gerrit.cloudera.org:8080/2776 Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com> Reviewed-by: Dan Hecht <dhecht@cloudera.com> Tested-by: Internal Jenkins
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.
Building Impala
This Apache Incubator repository is currently not buildable but has the complete source code for Impala minus some third-party dependences. See https://github.com/cloudera/Impala for the buildable Impala source and https://issues.cloudera.org/browse/IMPALA-3223 to track progress on making this repository buildable.