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https://issues.apache.org/jira/browse/HIVE-2283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068590#comment-13068590
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John Sichi commented on HIVE-2283:
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Submit one combined patch with everything, including the .q.out file which we
need for the test to pass. Once read, add it to Review Board, upload it here,
and then click the Submit Patch button.
https://cwiki.apache.org/confluence/display/Hive/HowToContribute#HowToContribute-ReviewProcess
> Backtracking real column names for EXPLAIN output
> -------------------------------------------------
>
> Key: HIVE-2283
> URL: https://issues.apache.org/jira/browse/HIVE-2283
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.8.0
> Reporter: Navis
> Priority: Minor
> Attachments: HIVE-2283.1.patch, HIVE-2283.2.patch,
> HIVE-2283.test.patch
>
>
> GUI people suggested that showing real column names for result of EXPLAIN
> statement would make customers feel more comfortable with HIVE. I agreed and
> working on it.
> {code}
> a. current EXPLAIN
> Select Operator
> expressions:
> expr: _col10
> type: int
> expr: _col17
> type: string
> Group By Operator
> keys:
> expr: _col0
> type: int
> expr: _col17
> type: int
> b. suggested EXPLAIN
> Select Operator
> expressions: _col10=t2.key_int1, _col17=upper(t1.key_int1),
> _col22=t3.key_string2
> Group By Operator
> keys: _col10=t2.key_int1, _col17=upper(t1.key_int1)
> {code}
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