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.
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