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[HIVE-4823] implement vectorized TRIM(), LTRIM(), RTRIM() - Hive - [issue]
...Make it work end-to-end, including the vectorized expression, and tying it together in VectorizationContext so a SQL query will run using vectorization when invoking these functions....
http://issues.apache.org/jira/browse/HIVE-4823    Author: Eric Hanson, 2013-09-23, 20:00
[HIVE-4961] Create bridge for custom UDFs to operate in vectorized mode - Hive - [issue]
...Suppose you have a custom UDF myUDF() that you've created to extend hive. The goal of this JIRA is to create a facility where if you run a query that uses myUDF() in an expression, the query...
http://issues.apache.org/jira/browse/HIVE-4961    Author: Eric Hanson, 2013-09-18, 01:50
[HIVE-4946] Allow prevention of string column re-use for string functions that can set results by reference - Hive - [issue]
...In order to prevent a bug, I had to use BytesColumnVector.setVal instead of BytesColumnVector.setRef when creating the output of all string functions. These include TRIM/LTRIM/RTRIM/SUBSTR, ...
http://issues.apache.org/jira/browse/HIVE-4946    Author: Eric Hanson, 2013-07-27, 01:04
[HIVE-4922] create template for string scalar compared with string column - Hive - [issue]
...Create a template to generate classes to handle comparisons with a scalar on the left and a column on the right.This allows queries similar to the following to run vectorized:select l_orderk...
http://issues.apache.org/jira/browse/HIVE-4922    Author: Eric Hanson, 2013-07-27, 00:24
[HIVE-4676] Optimize COUNT(*) aggregate over vectorized ORC execution path - Hive - [issue]
...The COUNT(*) aggregate with the vectorized execution path over ORC should be optimized because it is a very common case. The same problem described below also happens with COUNT(1) a...
http://issues.apache.org/jira/browse/HIVE-4676    Author: Eric Hanson, 2013-07-22, 21:17
[HIVE-4787] make vectorized LOWER(), UPPER(), LENGTH() work end-to-end; support expression input for vectorized LIKE - Hive - [issue]
...Vectorized expressions have been implemented for UPPER(), LOWER() and LENGTH() for strings but they have not been tied through end-to-end to work in queries. VectorizationContext needs to be...
http://issues.apache.org/jira/browse/HIVE-4787    Author: Eric Hanson, 2013-07-17, 21:25
[HIVE-4685] query using LIKE does not vectorize - Hive - [issue]
...The query   select count(ddate) from factsqlengineam_vec_orc where ddate like "2013%";Starts up but does not run in vectorization mode. Then during non-vectorized execution it crashes.E...
http://issues.apache.org/jira/browse/HIVE-4685    Author: Eric Hanson, 2013-07-17, 21:23
[HIVE-4548] Speed up vectorized LIKE filter for special cases abc%, %abc and %abc% - Hive - [issue]
...Speed up vectorized LIKE filter evaluation for abc%, %abc, and %abc% pattern special cases (here, abc is just a place holder for some fixed string).  Problem: The current vectorized LIK...
http://issues.apache.org/jira/browse/HIVE-4548    Author: Eric Hanson, 2013-07-01, 23:24
[HIVE-4478] In ORC, add boolean noNulls flag to column stripe metadata - Hive - [issue]
...Currently, the stripe metadata for ORC contains the min and max value for each column in the stripe. This will be used for stripe elimination. However, an additional bit of metadata for each...
http://issues.apache.org/jira/browse/HIVE-4478    Author: Eric Hanson, 2013-06-29, 19:01
[HIVE-4718] array out of bounds exception near VectorHashKeyWrapper.getBytes() with 2 column GROUP BY - Hive - [issue]
...select ddate, disinternalmsft16431, count(*) from factsqlengineam_vec_orc where (ddate = '2012-05-19 00:00:00' or ddate = '2012-05-20 00:00:00') and (disinternalmsft16431 = 0 or ...
http://issues.apache.org/jira/browse/HIVE-4718    Author: Eric Hanson, 2013-06-19, 23:02
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB