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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-16797) Enhance HiveFilterSetOpTransposeRule to remove union branches
Date Sun, 18 Jun 2017 08:45:01 GMT


Hive QA commented on HIVE-16797:

Here are the results of testing the latest attachment:

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 11 failed/errored test(s), 10820 tests executed
*Failed tests:*
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr] (batchId=145)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_2] (batchId=99)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query16] (batchId=232)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query94] (batchId=232)
org.apache.hive.hcatalog.api.TestHCatClient.testPartitionRegistrationWithCustomSchema (batchId=177)
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation (batchId=177)

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.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 11 tests failed

This message is automatically generated.

ATTACHMENT ID: 12873401 - PreCommit-HIVE-Build

> Enhance HiveFilterSetOpTransposeRule to remove union branches
> -------------------------------------------------------------
>                 Key: HIVE-16797
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-16797.01.patch, HIVE-16797.02.patch, HIVE-16797.03.patch, HIVE-16797.04.patch
> in query4.q, we can see that it creates a CTE with union all of 3 branches. Then it is
going to do a 3 way self-join of the CTE with predicates. The predicates actually specifies
only one of the branch in CTE to participate in the join. Thus, in some cases, e.g.,
> {code}
>                /- filter(false) -----TS0 
> union all  - filter(false) -----TS1
>                \-----TS2
> {code}
> we can cut the branches of TS0 and TS1. The union becomes only TS2.

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