Apache Hive 0.11 版本分析

     目前Hive 0.11 版本已经发本,本文旨在分析0.11的新特性。

     Bug 修复:(我个人遇到很多)

     

       Hive 0.11版修复了hive本身存在的数10处bug,重点包括:

                   [HIVE-2264] - Hive server is SHUTTING DOWN when invalid queries beeing executed

              [HIVE-2332] - If all of the parameters of distinct functions are exists in group by columns, query fails in runtime

               [HIVE-3197] - Hive compile errors under Java 7 (JDBC 4.1)

               [HIVE-3308] - Mixing avro and snappy gives null values

               [HIVE-3648] - HiveMetaStoreFsImpl is not compatible with hadoop viewfs

       从中可以发现hive 与 jdk 1.7还是有很多的问题有待解决,所以目前还是不要尝试为好。

       同时有很多新的特性,比如nvl 函数等,我们在实际应用中可以使用

               [HIVE-446] - Implement TRUNCATE

               [HIVE-2935] - Implement HiveServer2

               [HIVE-3825] - Add Operator level Hooks

               [HIVE-3682] - when output hive table to file,users should could have a separator of their own choice

               [HIVE-3682] - when output hive table to file,users should could have a separator of their own choice

               [HIVE-2693] - Add DECIMAL data type

               [HIVE-2288] - Adding the oracle nvl function to the UDF

               [HIVE-3552] - HIVE-3552 performant manner for performing cubes/rollups/grouping sets for a high number of grouping set keys

                

              

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转载自tulingss.iteye.com/blog/1935820