Apache Tajo (incubating) 0.2 has been released
The Apache Tajo team is pleased to announce the release of Apache Tajo 0.2-incubating,
a bid data warehouse system on Hadoop that provides low-latency and scalable ad-hoc
queries and ETL on large-data sets stored on HDFS and other data sources.
This release is available for immediate download:
http://tajo.incubator.apache.org/downloads.html
Apache Tajo 0.2-incubating resolved 193 issues including 73 bug fixes, 56 improvements
and includes the following new features :
* Add cost-based join optimization
* Allow inline view use (i.e., table subquery)
* Add various string functions, such as upper, lower, (L|R)TRIM, split_part, and regexp_replace.
* Allow in predicate support
* Improve significantly scan performance
* Add INSERT OVERWRITE statement
* Add CREATE TABLE statement
* Add HiveQL mode
* Allow configurable NULL character for CSVFile format
* Allow compression/decompression of CSVFile (all codecs supported by Hadoop)
* Add the extensible rewrite rule engine
* Add tajo_dump, a backup and restore utility
* Allow BETWEEN predicate
* Add Tajo Resource Manager specialized for low-latency queries
The Apache Tajo team is looking for more developers and of course users to
help grow the community and give feedback. Mailing list information is at:
http://tajo.incubator.apache.org/mail-lists.html.
Check Apache Tajo at http://tajo.incubator.apache.org for more information.
Disclaimer
----------
Apache Tajo is an effort undergoing incubation at The Apache Software
Foundation (ASF) sponsored by the Apache Incubator PMC. Incubation is
required of all newly accepted projects until a further review
indicates that the infrastructure, communications, and decision making
process have stabilized in a manner consistent with other successful
ASF projects. While incubation status is not necessarily a reflection
of the completeness or stability of the code, it does indicate that
the project has yet to be fully endorsed by the ASF. |