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[HIVE-6032] explain subquery rewrite for 'not in' operator - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-6032    Author: Harish Butani, 2013-12-13, 22:26
[HIVE-6030] Introduce Explain SubQuery Rewrite command - Hive - [issue]
...There are several transformations happening for SubQuery predicates(HIVE-784). It is hard to tell from the explain plan how the Query is executed. So the goal is to introduce an explain subq...
http://issues.apache.org/jira/browse/HIVE-6030    Author: Harish Butani, 2013-12-13, 22:25
[expand - 4 more] - Re: doc on predicate pushdown in joins - Hive - [mail # dev]
...I see.  Let's leave it in.  This is old code, hard to attribute to  jiras: - The PPD code comes from: HIVE-279, HIVE-2337 - I cannot tell when the join condition parsing code ...
   Author: Harish Butani, 2013-12-12, 03:03
[HIVE-5830] SubQuery: Not In subqueries should check if subquery contains nulls in matching column - Hive - [issue]
...As pointed out by Sivaramakrishnan Narayanan  in HIVE-784 for not in when there are nulls in the SubQuery's matching column the Outer Query should return no rows....
http://issues.apache.org/jira/browse/HIVE-5830    Author: Harish Butani, 2013-12-09, 18:50
[HIVE-5614] Subquery support: allow subquery expressions in having clause - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-5614    Author: Harish Butani, 2013-11-24, 03:20
[HIVE-5874] SubQuery: better error handling when SQ and Outer Query has the same table alias - Hive - [issue]
...The following queryselect * from src where key in (select key from src where src.key > '1')Gives the following message:emanticException [Error 10249]: Line 1:58 Unsupported SubQuery Expre...
http://issues.apache.org/jira/browse/HIVE-5874    Author: Harish Butani, 2013-11-22, 22:06
[HIVE-5873] SubQuery: In subquery Count Bug - Hive - [issue]
...This is from the Optimization of Nested SQl Queries Revisited paper: http://dl.acm.org/citation.cfm?id=38723Consider Part table having:PNum OrderOnHand-------- ------------------3   &nb...
http://issues.apache.org/jira/browse/HIVE-5873    Author: Harish Butani, 2013-11-22, 20:54
[HIVE-5557] Push down qualifying Where clause predicates as join conditions - Hive - [issue]
...See details in HIVE-5555...
http://issues.apache.org/jira/browse/HIVE-5557    Author: Harish Butani, 2013-11-13, 17:15
[HIVE-5710] Merging of Join Trees assumes all filters are on the merging table - Hive - [issue]
...The following query fails with a SemanticExceptionselect p1.name, p2.name, p3.namefrom part p1 join p2 on p1.name = p2.namejoin part p3 on p1.name = p3.name and p2.key > 10The Merge Join ...
http://issues.apache.org/jira/browse/HIVE-5710    Author: Harish Butani, 2013-10-31, 18:01
[HIVE-5709] Extend Join merging logic to merge 2 Joins when one Join expression list is a subset of the other. - Hive - [issue]
...As pointed out by Ashutosh Chauhan here: https://reviews.apache.org/r/14953/For the following queryselect p1.name, p2.name, p3.namefrom part p1 join p2 on p1.name = p2.name and p1.key = p2.k...
http://issues.apache.org/jira/browse/HIVE-5709    Author: Harish Butani, 2013-10-31, 17:59
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