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[HIVE-7670] CBO: predicates on partition columns get applied twice in cardinality estimates. - Hive - [issue]
...this causes an underestimation of Part table row counts....
http://issues.apache.org/jira/browse/HIVE-7670    Author: Harish Butani, 2014-08-09, 02:29
Re: Review Request 24513: handle cast for long in get_aggr_stats() api for metastore for mysql - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/24513/#review50096Ship it!Ship It!- Harish ButaniOn Aug. 9, 2014, 12:07 a.m., Ashutosh Chauhan wrote:&...
   Author: Harish Butani, 2014-08-09, 00:26
[HIVE-7662] CBO: changes to Cost Model - Hive - [issue]
...Model Join cost as Sum of Input sizes Fix bug with NDV calculations. For now use Optiq's default formulas. Model Cummulative cost to favor broad Plans over Deep Plans....
http://issues.apache.org/jira/browse/HIVE-7662    Author: Harish Butani, 2014-08-08, 22:45
[HIVE-7628] CBO: log Plan coming out of each phase in Optiq Planning - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-7628    Author: Harish Butani, 2014-08-06, 07:47
[HIVE-7625] CBO: stats for Partitioned tables are not read correctly. - Hive - [issue]
...The wrong call is being made to read stats for Partitioned tables....
http://issues.apache.org/jira/browse/HIVE-7625    Author: Harish Butani, 2014-08-06, 07:45
Re: Review Request 24337: Enable views when cbo is on - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/24337/#review49693branches/cbo/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java ...
   Author: Harish Butani, 2014-08-06, 04:34
[HIVE-7478] CBO: PPD push conditions to Join Operators - Hive - [issue]
...This was turned off in HivePushFilterPastJoin because non equality conditions were being pushed. Fix this so that equality predicates are pushed as join conditions....
http://issues.apache.org/jira/browse/HIVE-7478    Author: Harish Butani, 2014-07-23, 03:08
[HIVE-7324] CBO: provide a mechanism to test CBO features based on table stats only (w/o table data) - Hive - [issue]
...Since lot of the CBO work is focused on planning, it will be nice to be able to run explain query to test CBO features. TPCDS has a rich enough schema and query set. So the patch loads a dum...
http://issues.apache.org/jira/browse/HIVE-7324    Author: Harish Butani, 2014-07-22, 04:17
[HIVE-7284] CBO: create Partition Pruning rules in Optiq - Hive - [issue]
...NO PRECOMMIT TESTSCreate rules in Optiq that do the job of the PartitionPruner.For now we will reuse the logic that evaluates the Partition list from prunedExpr....
http://issues.apache.org/jira/browse/HIVE-7284    Author: Harish Butani, 2014-07-18, 03:08
[HIVE-6013] Supporting Quoted Identifiers in Column Names - Hive - [issue]
...Hive's current behavior on Quoted Identifiers is different from the normal interpretation. Quoted Identifier (using backticks) has a special interpretation for Select expressions(as Regular ...
http://issues.apache.org/jira/browse/HIVE-6013    Author: Harish Butani, 2014-07-17, 23:09
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