[jira] [Created] (DRILL-3298) Wrong result with SUM window function and order by without partition by in the OVER clause

["Victoria Markman (JIRA)" <ji...@apache.org>]

Victoria Markman created DRILL-3298:
---------------------------------------

             Summary: 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


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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