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From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-3298) Wrong result with SUM window function and order by without partition by in the OVER clause
Date Tue, 16 Jun 2015 17:15:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Victoria Markman updated DRILL-3298:
------------------------------------
    Attachment:     (was: test.res)

> Wrong result with SUM window function and order by without partition by in the OVER clause
> ------------------------------------------------------------------------------------------
>
>                 Key: DRILL-3298
>                 URL: https://issues.apache.org/jira/browse/DRILL-3298
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Flow
>    Affects Versions: 1.0.0
>            Reporter: Victoria Markman
>            Assignee: Chris Westin
>            Priority: Critical
>              Labels: window_function
>         Attachments: j1.tar
>
>
> This query returns incorrect result when planner.slice_target = 1
> {code}
> select
>         j1.c_integer,
>         sum(j1.c_integer) over w
> from j1
> window  w as (order by c_integer desc)
> order by
>         1, 2;
> {code}
> Query plan with planner.slice_target = 1
> {code}
> 00-01      Project(c_integer=[$0], EXPR$1=[$1])
> 00-02        SingleMergeExchange(sort0=[0 ASC], sort1=[1 ASC])
> 01-01          SelectionVectorRemover
> 01-02            Sort(sort0=[$0], sort1=[$1], dir0=[ASC], dir1=[ASC])
> 01-03              Project(c_integer=[$0], EXPR$1=[$1])
> 01-04                HashToRandomExchange(dist0=[[$0]], dist1=[[$1]])
> 02-01                  UnorderedMuxExchange
> 03-01                    Project(c_integer=[$0], EXPR$1=[$1], E_X_P_R_H_A_S_H_F_I_E_L_D=[castInt(hash64AsDouble($1,
hash64AsDouble($0)))])
> 03-02                      Project(c_integer=[$0], EXPR$1=[CASE(>($1, 0), CAST($2):ANY,
null)])
> 03-03                        Window(window#0=[window(partition {} order by [0 DESC] range
between UNBOUNDED PRECEDING and CURRENT ROW aggs [COUNT($0), $SUM0($0)])])
> 03-04                          SelectionVectorRemover
> 03-05                            Sort(sort0=[$0], dir0=[DESC])
> 03-06                              Scan(groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath
[path=maprfs:///drill/testdata/subqueries/j1]], selectionRoot=/drill/testdata/subqueries/j1,
numFiles=1, columns=[`c_integer`]]])
> {code}
> Query plan with planner.slice_target = 100000;
> {code}
> 00-01      Project(c_integer=[$0], EXPR$1=[$1])
> 00-02        SelectionVectorRemover
> 00-03          Sort(sort0=[$0], sort1=[$1], dir0=[ASC], dir1=[ASC])
> 00-04            Project(c_integer=[$0], EXPR$1=[CASE(>($1, 0), CAST($2):ANY, null)])
> 00-05              Window(window#0=[window(partition {} order by [0 DESC] range between
UNBOUNDED PRECEDING and CURRENT ROW aggs [COUNT($0), $SUM0($0)])])
> 00-06                SelectionVectorRemover
> 00-07                  Sort(sort0=[$0], dir0=[DESC])
> 00-08                    Scan(groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath
[path=maprfs:///drill/testdata/subqueries/j1]], selectionRoot=/drill/testdata/subqueries/j1,
numFiles=1, columns=[`c_integer`]]])
> {code}
> Attached:
>         * table j1
>         * test.res - result generated with postgres



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