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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-18173) Improve plans for correlated subqueries with non-equi predicate
Date Sat, 02 Dec 2017 23:23:00 GMT


Hive QA commented on HIVE-18173:

Here are the results of testing the latest attachment:

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 11507 tests executed
*Failed tests:*
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[auto_sortmerge_join_2] (batchId=48)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vector_complex_join] (batchId=44)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[sysdb] (batchId=160)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[subquery_multi] (batchId=113)
org.apache.hadoop.hive.ql.parse.TestReplicationScenarios.testConstraints (batchId=227)

Test results:
Console output:
Test logs:

Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 7 tests failed

This message is automatically generated.

ATTACHMENT ID: 12900353 - PreCommit-HIVE-Build

> Improve plans for correlated subqueries with non-equi predicate
> ---------------------------------------------------------------
>                 Key: HIVE-18173
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Planning
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-18173.1.patch, HIVE-18173.2.patch, HIVE-18173.3.patch
> HIVE-17767 optimized plan to not generate value generator (i.e. an extra join with outer
query to fetch correlated columns) for EQUAL and NOT EQUAL predicates e.g.
> {code:sql}
> select * from src b where b.key in (select key from src a where b.value <> a.value)
> {code}
> This should be improved and implemented for rest of the predicates e.g. LESS THAN etc

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