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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-16367) Null-safe equality <=> operator is not support with CBO
Date Mon, 24 Apr 2017 05:10:04 GMT


Hive QA commented on HIVE-16367:

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 10 failed/errored test(s), 10628 tests executed
*Failed tests:*
org.apache.hadoop.hive.cli.TestAccumuloCliDriver.testCliDriver[accumulo_index] (batchId=225)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[explainuser_1] (batchId=149)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[is_distinct_from] (batchId=142)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_union_group_by] (batchId=157)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr] (batchId=143)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[join_nullsafe] (batchId=129)

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: 10 tests failed

This message is automatically generated.

ATTACHMENT ID: 12864687 - PreCommit-HIVE-Build

> Null-safe equality <=> operator is not support with CBO 
> --------------------------------------------------------
>                 Key: HIVE-16367
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-16367.1.patch
> Calcite doesn't support such equality operator so hive bails out and goes through non-cbo
path. This could restrict it's usage with subqueries and other cbo only features.
> Since {{<=>}} is equivalent to {{is not distinct from}} (HIVE-15986) we can rewrite
{{<=>}} to {{is not distinct from}} and enable CBO.

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