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Real-time Query for Hadoop
C++ Java Python Thrift C Shell Other

Nested Types: Fix path resolution. An implicit match must be followed…

… by an explicit one.

Before this patch, we had incorrectly accepted some paths by matching multiple
consecutive types implicitly (see the added negative test). However, an implicit
match must always be succeeded by an explicit one, and this patch enforces
that constraint.

Change-Id: I7a806b873f5a9369e429a71ee3e1343fa5e6dd0a
Reviewed-by: Alex Behm <>
Tested-by: Internal Jenkins
latest commit 3ae8e0e97e
@abehm abehm authored Internal Jenkins committed

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.

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