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[HIVE-7905] CBO: more cost model changes - Hive - [issue]
...1. For composite predicates smoothen the Selectivity calculation using exponential backoff. Thanks to [~ mmokhtar] for this formula.Can you change the algorithm to use exponential ba...
http://issues.apache.org/jira/browse/HIVE-7905    Author: Harish Butani, 2014-08-29, 02:47
Review Request 25179: HIVE-7905: CBO: more cost model changes - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/25179/Review request for hive, Gunther Hagleitner and John Pullokkaran.Repository: hive-gitDescription...
   Author: Harish Butani, 2014-08-29, 01:59
Re: Review Request 25083: Handle a case where FieldTimmer trims all fields from input - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/25083/#review51611Ship it!Ship It!- Harish ButaniOn Aug. 26, 2014, 10:43 p.m., Ashutosh Chauhan wrote:...
   Author: Harish Butani, 2014-08-26, 23:31
[HIVE-7720] CBO: rank translation to Optiq RelNode tree failing - Hive - [issue]
...Following query:explain select p_namefrom (select p_mfgr, p_name, p_size, rank() over(partition by p_mfgr order by p_size) as r from part) awhere r <= 2;fails with org.apache.hadoop.hive....
http://issues.apache.org/jira/browse/HIVE-7720    Author: Harish Butani, 2014-08-26, 22:55
[HIVE-7721] CBO: support case statement translation to optiq - Hive - [issue]
...Following query:explain select case when key > '104' then null else key end as key from srcfails with:java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: U...
http://issues.apache.org/jira/browse/HIVE-7721    Author: Harish Butani, 2014-08-25, 18:59
[HIVE-7724] CBO: support Subquery predicates - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-7724    Author: Harish Butani, 2014-08-25, 18:17
Review Request 25010: HIVE-7724: CBO: support Subquery predicates - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/25010/Review request for hive, Ashutosh Chauhan and John Pullokkaran.Repository: hive-gitDescriptionHI...
   Author: Harish Butani, 2014-08-23, 16:22
[HIVE-6934] PartitionPruner doesn't handle top level constant expression correctly - Hive - [issue]
...You hit this error indirectly, because how we handle invalid constant comparisons. Consider:create table x(key int, value string) partitioned by (dt int, ts string);-- both these queries hit...
http://issues.apache.org/jira/browse/HIVE-6934    Author: Harish Butani, 2014-08-22, 20:44
[HIVE-7804] CBO: Support SemiJoins - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-7804    Author: Harish Butani, 2014-08-21, 06:50
[HIVE-7744] In Windowing Streaming mode Avg and Sum give incorrect results when Wdw size is same as partition size - Hive - [issue]
...For e.g. following query:select p_retailprice, avg(p_retailprice) over (partition by p_mfgr order by p_name rows between current row and 6 following), sum(p_retailprice) over (partition by p...
http://issues.apache.org/jira/browse/HIVE-7744    Author: Harish Butani, 2014-08-17, 19:02
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