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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18725) Improve error handling for subqueries if there is wrong column reference
Date Thu, 21 Jun 2018 22:40:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16519818#comment-16519818
] 

Hive QA commented on HIVE-18725:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12928569/HIVE-18725.08.patch

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

{color:green}SUCCESS:{color} +1 due to 14542 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/11980/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/11980/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-11980/

Messages:
{noformat}
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
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12928569 - PreCommit-HIVE-Build

> Improve error handling for subqueries if there is wrong column reference
> ------------------------------------------------------------------------
>
>                 Key: HIVE-18725
>                 URL: https://issues.apache.org/jira/browse/HIVE-18725
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Planning
>            Reporter: Vineet Garg
>            Assignee: Igor Kryvenko
>            Priority: Major
>         Attachments: HIVE-18725.01.patch, HIVE-18725.02.patch, HIVE-18725.03.patch, HIVE-18725.04.patch,
HIVE-18725.05.patch, HIVE-18725.06.patch, HIVE-18725.07.patch, HIVE-18725.08.patch
>
>
> If there is a column reference within subquery which doesn't exist Hive throws misleading
error message.
> e.g. 
> {code:sql}
> select * from table1 where table1.col1 IN (select col2 from table2 where table2.col1=table1.non_existing_column)
and table1.col1 IN (select 4);
> {code}
> The above query, assuming table1 doesn't have non_existing_column, will throw following
misleading error:
> {noformat}
> FAILED: SemanticException Line 0:-1 Unsupported SubQuery Expression 'col1': Only 1 SubQuery
expression is supported.
> {noformat}



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