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https://issues.apache.org/jira/browse/HIVE-26671?focusedWorklogId=821041&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-821041
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ASF GitHub Bot logged work on HIVE-26671:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Oct/22 15:04
Start Date: 27/Oct/22 15:04
Worklog Time Spent: 10m
Work Description: scarlin-cloudera commented on code in PR #3706:
URL: https://github.com/apache/hive/pull/3706#discussion_r1007004337
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ql/src/test/results/clientpositive/llap/bucket_groupby.q.out:
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@@ -1753,9 +1753,9 @@ STAGE PLANS:
filterExpr: (ds = '103') (type: boolean)
Statistics: Num rows: 500 Data size: 89000 Basic stats:
COMPLETE Column stats: COMPLETE
Top N Key Operator
- sort order: ++
- keys: key (type: string), value (type: string)
- null sort order: zz
+ sort order: +
+ keys: key (type: string)
+ null sort order: z
Review Comment:
Ah, I wrote this comment before reading the other one.
I tihnk I'm ok with doing the other way? Lemme see if it works, thanks!
Issue Time Tracking
-------------------
Worklog Id: (was: 821041)
Time Spent: 1h 10m (was: 1h)
> Incorrect results for group by/order by/limit query with 2 aggregates
> ---------------------------------------------------------------------
>
> Key: HIVE-26671
> URL: https://issues.apache.org/jira/browse/HIVE-26671
> Project: Hive
> Issue Type: Bug
> Components: Operators
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Grabbed this query from the Impala test suite. It is a query run off of
> tpcds tables, but it's not really super special. You will need a lot of data
> to reproduce this, though.
> select
> l_orderkey,
> min(l_shipdate) as flt,
> count(distinct l_partkey) as cnl
> from lineitem
> group by l_orderkey order by l_orderkey limit 2;
> The issue is with the Top N Key operator optimizer. The Top N Key operator is
> the first operator after the Table Scan. The sort key is on both the
> l_orderkey and l_partkey columns, but this means that the second sort key
> might not be forwarded.
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