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[HIVE-15549] Better naming of Tez edges
...Do the following renames:CUSTOM_EDGE -> CO_PARTITION_EDGECUSTOM_SIMPLE_EDGE -> PARTITION_EDGESIMPLE_EDGE -> SORT_PARTITION_EDGEBecause that's what those edges actually do.Also renam...
, 2017-01-12, 03:39
[HIVE-14848] S3 creds added to a hidden list by HIVE-14588 are not working on MR jobs
...When S3 credentials are included in hive-site.xml, then MR jobs that need to readdata from S3 cannot use them because S3 values are stripped from the Job configurationobject before submittin...
, 2017-01-12, 01:24
[HIVE-15564] set task's jobID with hadoop map reduce job ID for PartialScanTask, MergeFileTask and ColumnTruncateTask.
...set task's jobID with hadoop map reduce job ID for PartialScanTask, MergeFileTask and ColumnTruncateTask. Since ExecDriver already set task's jobID with hadoop map reduce job ID, this patch ...
, 2017-01-12, 01:05
[HIVE-15563] Ignore Illegal Operation state transition exception in SQLOperation.runQuery to expose real exception.
...Ignore Illegal Operation state transition exception in SQLOperation.runQuery to expose real exception.setState may create Illegal Operation state transition exception which may hide th...
, 2017-01-12, 01:04
[HIVE-10511] Replacing the implementation of Hive CLI using Beeline
...Hive CLI is a legacy tool which had two main use cases: 1. a thick client for SQL on hadoop2. a command line tool for HiveServer1.HiveServer1 is already deprecated and removed from Hive code...
, 2017-01-12, 00:22
[expand - 1 more]
Re: Vectorised Queries in Hive
- [mail # user]
...Can you explain what you mean?Vectorization supports multiple & nested AND+OR predicates - with some extra SIMD efficiencies in place for constants or repeated values.Cheers,Gopal...
, 2017-01-11, 23:20
Vectorised Queries in Hive
- [mail # user]
...My understanding is that Vectorized query execution is only applicable toORC tables in Hive by processing block of 1024 rows at a time.I have also noticed that this execution mode is only ap...
, 2017-01-10, 10:35
[HIVE-15520] Improve the sum performance for Range based window
...Currently streaming process is not supported for range based windowing. Thus sum( x ) over (partition by y order by z) is O(n^2) running time. Investigate the possibility of streaming suppor...
, 2017-01-11, 23:13
[HIVE-15388] HiveParser spends lots of time in parsing queries with lots of "("
...Branch: apache-master (applicable with previous releases as well)Queries generated via tools can have lots of "(" for "AND/OR" conditions. This causes huge delays in parsing phase when the n...
, 2017-01-11, 22:56
[HIVE-10836] Beeline OutOfMemoryError due to large history
...Attempting to run beeline via commandline fails with the error below due to large commands in the ~/.beeline/history file. Not sure if the problem also exists with many lines in the history ...
, 2017-01-11, 22:35
[HIVE-15490] REPL LOAD & DUMP support for INSERT events with change management
...When we load on destination such that the table on the source has been dropped, we need to look for the table in the configured $cmroot location and compare checksums....
, 2017-01-11, 22:31
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