IMPALA-12899: Temporary workaround for BINARY in complex types

The BINARY type is currently not supported inside complex types and a
cross-component decision is probably needed to support it (see
IMPALA-11491). We would like to enable EXPAND_COMPLEX_TYPES for Iceberg
metadata tables (IMPALA-12612), which requires that queries with BINARY
inside complex types don't fail. Enabling EXPAND_COMPLEX_TYPES is a more
prioritised issue than IMPALA-11491, so we have come up with a
temporary solution.

This change NULLs out BINARY values in complex types coming from Iceberg
metadata tables and logs a warning.

BINARYs in complex types from regular tables are not affected by this
change.

Testing:
 - Added test queries in iceberg-metadata-tables.test.

Change-Id: I0d834126c7d702a25e957bb6071ecbf0fda2c203
Reviewed-on: http://gerrit.cloudera.org:8080/21219
Reviewed-by: Gabor Kaszab <gaborkaszab@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
5 files changed
tree: c46eb6741be7d3d6af1cf704d3948e1293133a37
  1. .devcontainer/
  2. be/
  3. bin/
  4. cmake_modules/
  5. common/
  6. docker/
  7. docs/
  8. fe/
  9. infra/
  10. java/
  11. lib/
  12. package/
  13. security/
  14. shell/
  15. ssh_keys/
  16. testdata/
  17. tests/
  18. www/
  19. .clang-format
  20. .clang-tidy
  21. .gitattributes
  22. .gitignore
  23. buildall.sh
  24. CMakeLists.txt
  25. EXPORT_CONTROL.md
  26. LICENSE.txt
  27. LOGS.md
  28. NOTICE.txt
  29. README-build.md
  30. README.md
  31. setup.cfg
README.md

Welcome to Impala

Lightning-fast, distributed SQL queries for petabytes of data stored in open data and table formats.

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:

More about Impala

The fastest way to try out Impala is a quickstart Docker container. You can try out running queries and processing data sets in Impala on a single machine without installing dependencies. It can automatically load test data sets into Apache Kudu and Apache Parquet formats and you can start playing around with Apache Impala SQL within minutes.

To learn more about Impala as a user or administrator, or to try Impala, please visit the Impala homepage. Detailed documentation for administrators and users is available at Apache Impala documentation.

If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.

Supported Platforms

Impala only supports Linux at the moment. Impala supports x86_64 and has experimental support for arm64 (as of Impala 4.0). Impala Requirements contains more detailed information on the minimum CPU requirements.

Supported OS Distributions

Impala runs on Linux systems only. The supported distros are

  • Ubuntu 16.04/18.04
  • CentOS/RHEL 7/8

Other systems, e.g. SLES12, may also be supported but are not tested by the community.

Export Control Notice

This distribution uses cryptographic software and may be subject to export controls. Please refer to EXPORT_CONTROL.md for more information.

Build Instructions

See Impala's developer documentation to get started.

Detailed build notes has some detailed information on the project layout and build.