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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9645) Constant folding case NULL equality
Date Fri, 13 Feb 2015 07:24:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14319688#comment-14319688
] 

Hive QA commented on HIVE-9645:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12698568/HIVE-9645.patch

{color:red}ERROR:{color} -1 due to 35 failed/errored test(s), 7542 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_decimal_udf
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_input8
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_input9
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_load_dyn_part14
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_num_op_type_conv
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_ppd_constant_expr
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf6
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_add_months
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_case
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_coalesce
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_decode
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_elt
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_greatest
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_if
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_instr
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_isnull_isnotnull
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_last_day
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_least
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_locate
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_next_day
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_nvl
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_size
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_when
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_vector_coalesce
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_vector_decimal_udf
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_windowing_navfn
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_optimize_nullscan
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_orc_vectorization_ppd
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_coalesce
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_decimal_udf
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_auto_join8
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_join8
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_load_dyn_part14
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_optimize_nullscan
org.apache.hive.hcatalog.streaming.TestStreaming.testTransactionBatchEmptyCommit
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2787/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2787/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-2787/

Messages:
{noformat}
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: 35 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12698568 - PreCommit-HIVE-TRUNK-Build

> Constant folding case NULL equality
> -----------------------------------
>
>                 Key: HIVE-9645
>                 URL: https://issues.apache.org/jira/browse/HIVE-9645
>             Project: Hive
>          Issue Type: Bug
>          Components: Logical Optimizer
>    Affects Versions: 1.2.0
>            Reporter: Gopal V
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-9645.patch
>
>
> Hive logical optimizer does not follow the Null scan codepath when encountering a NULL
= 1;
> NULL = 1 is not evaluated as false in the constant propogation implementation.
> {code}
> hive> explain select count(1) from store_sales where null=1;
> ...
>              TableScan
>                   alias: store_sales
>                   filterExpr: (null = 1) (type: boolean)
>                   Statistics: Num rows: 550076554 Data size: 49570324480 Basic stats:
COMPLETE Column stats: COMPLETE
>                   Filter Operator
>                     predicate: (null = 1) (type: boolean)
>                     Statistics: Num rows: 275038277 Data size: 0 Basic stats: PARTIAL
Column stats: COMPLETE
> {code}



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