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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-11752) Pre-materializing complex CTE queries
Date Sun, 07 Feb 2016 18:28:39 GMT


Hive QA commented on HIVE-11752:

Here are the results of testing the latest attachment:

{color:green}SUCCESS:{color} +1 due to 9 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 10065 tests executed
*Failed tests:*
TestSparkCliDriver-timestamp_lazy.q-bucketsortoptimize_insert_4.q-date_udf.q-and-12-more -
did not produce a TEST-*.xml file

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: 3 tests failed

This message is automatically generated.

ATTACHMENT ID: 12786464 - PreCommit-HIVE-TRUNK-Build

> Pre-materializing complex CTE queries
> -------------------------------------
>                 Key: HIVE-11752
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 2.1.0
>            Reporter: Navis
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Minor
>         Attachments: HIVE-11752.03.patch, HIVE-11752.04.patch, HIVE-11752.05.patch, HIVE-11752.1.patch.txt,
> Currently, hive regards CTE clauses as a simple alias to the query block, which makes
redundant works if it's used multiple times in a query. This introduces a reference threshold
for pre-materializing the CTE clause as a volatile table (which is not exists in any form
of metastore and just accessible from QB).

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