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From Alvin Henrick <share.c...@aol.com>
Subject Re: [ANNOUNCE] Apache Tajo™ 0.8.0 Released!
Date Thu, 01 May 2014 14:58:39 GMT
Thank You. Hyunsik.

On May 1, 2014, at 4:30 AM, Hyunsik Choi wrote:

> Apache Tajo™ 0.8.0 Release Announcement
> 
> The Apache Tajo team is pleased to announce the major release of
> Apache Tajo™ 0.8.0, an open source big data warehouse system on
> Hadoop. Apache Tajo™ provides low-latency and scalable batch SQL
> queries on large-data sets stored on HDFS and other data sources.
> 
> The source and binary release tarballs are available for free download:
> 
> * http://tajo.apache.org/downloads
> 
> This is the first top-level release. In this release, Apache Tajo team
> closes 363 issues, including 25 new features, 81 improvement, and 164
> bug fixes.
> 
> Some of the highlights:
> 
> - SQL support
> 
> * Database support (TAJO-353)
> * Full/Left/Outer join (TAJO-34, TAJO-312)
> * Complex joins including derived subqueries and unions.
> * Datetime types and operator support
>    * Date type support (TAJO-60, TAJO-438)
>    * Time type support (TAJO-61, TAJO-439)
>    * Timestamp type support (TAJO-62, TAJO-437)
>    * Add datetime operation and functions
>        * extract(), to_timestamp(), utc_usec_to()
> * SQL standard and PostgreSQL-compatible string function support
>    * ascii(), length(), chr(), bit_length(string), hex(),
> octet_length(), reverse(), right(), left(), md5, repeat, substr(),
> strpos, locate(), initcap(), lpad(), rpad(), concat(), concat_ws(),
> ltrim(), rtrim(), btrim(), trim(), and so on.
> * SQL standard math function support
>    * mod(), div(), degrees(), radians(), cbrt(), abs(), exp(),
> sqrt(), sin(), sign(), pow(), ceiling(), round(), floor(), ceil(), and
> so on.
> * Other functions
>    * sha1(), digest(), find_in_set(), to_bin(), and so on.
> * CREATE TABLE AS (CTAS) on partition table (TAJO-460)
> * ALTER TABLE RENAME (TAJO-615)
> * ALTER TABLE ADD/RENAME COLUMN (TAJO-696, TAJO-697)
> * Quoted identifier support (TAJO-644)
> * Complex expression support in group-by, order-by, and having clauses
> * Distinct aggregation support (TAJO-601)
> * Explain statement support (TAJO-122)
> 
> - Performance and Scalability
> 
> * More I/O efficient M-way unbalanced external sort executor (TAJO-36, TAJO-584)
> * Reduced intermediate data volume (TAJO-435)
> * Star-schema broadcast support (TAJO-725)
> * Duplicated expression removal and more efficient projection push
> down (TAJO-501)
> * Reduced memory consumption in expression evaluation (TAJO-539)
> * Reduced GC overhead and memory usage (TAJO-522, TAJO-537, TAJO-544, TAJO-548)
> * I/O efficient sort-based dynamic partition store method (TAJO-574)
> 
> - Storage support
> 
> * Configurable serializer/deserializer of Text file (TAJO-424)
> * Parquet file support (TAJO-30, TAJO-714)
> * Avro storage support (TAJO-711)
> * Amazon S3 support (TAJO-577)
> 
> - Integration with Hadoop ecosystems
> 
> * Hadoop 2.2.0, 2.3.0 or 2.4.0 support
> * More improved Hive meta integration (TAJO-289, TAJO-300, TAJO-301)
> * Hive-compatible table partition (TAJO-285, TAJO-284, TAJO-338)
> 
> - Client and user interfaces
> 
> * More improved WEB UI
> * Tajo sql shell (tsql) recap
> * Linux Shell command and HDFS command support in tsql (TAJO-732)
> * Tajo JDBC Driver support and its improvements (TAJO-176, TAJO-745)
> * Fine-grained query progress indicator (TAJO-589)
> * Add killQuery feature (TAJO-305)
> 
> For a complete list of new features and fixed problems, please see the
> release notes:
> 
> * http://tajo.apache.org/releases/0.8.0/relnotes.html
> 
> Many Thanks to contributors on the 0.8.0 releases
> 
> * Alvin Henrick, DaeMyung Kang, David Chen, Hyoung Jun Kim, Hyunsik
> Choi, Ilhyun Suh, JaeHwa Jung, Jae Young Lee, Jinho Kim, Jihoon Son,
> Min Zhou, Keuntae Park, Seungun Choe, SeongHwa Ahn, Youngjun Park, Wan
> Heo.
> 
> - The Apache Tajo Community


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