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From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (DRILL-3601) LEAD function used without OVER clause should not plan
Date Fri, 11 Sep 2015 18:49:46 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Victoria Markman closed DRILL-3601.
-----------------------------------

> LEAD function used without OVER clause should not plan
> ------------------------------------------------------
>
>                 Key: DRILL-3601
>                 URL: https://issues.apache.org/jira/browse/DRILL-3601
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 1.2.0
>         Environment: private-branch-with-new-window-functions
>            Reporter: Khurram Faraaz
>            Assignee: Sean Hsuan-Yi Chu
>              Labels: window_function
>             Fix For: 1.2.0
>
>         Attachments: drillbit.log, fewRowsAllData.parquet
>
>
> When using LEAD window function without OVER clause, query should fail. Yet it generates
a StreamingAgg operator and then fails trying to compile it's generated code.
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select lead(col0) from `fewRowsAllData.parquet`;
> java.lang.RuntimeException: java.sql.SQLException: SYSTEM ERROR: CompileException: Line
95, Column 62: Unknown variable or type "index"
> Fragment 0:0
> [Error Id: 0d967bd7-36f6-4c8d-a574-9d67d7b22f7e on centos-01.qa.lab:31010]
> 	at sqlline.IncrementalRows.hasNext(IncrementalRows.java:73)
> 	at sqlline.TableOutputFormat$ResizingRowsProvider.next(TableOutputFormat.java:87)
> 	at sqlline.TableOutputFormat.print(TableOutputFormat.java:118)
> 	at sqlline.SqlLine.print(SqlLine.java:1583)
> 	at sqlline.Commands.execute(Commands.java:852)
> 	at sqlline.Commands.sql(Commands.java:751)
> 	at sqlline.SqlLine.dispatch(SqlLine.java:738)
> 	at sqlline.SqlLine.begin(SqlLine.java:612)
> 	at sqlline.SqlLine.start(SqlLine.java:366)
> 	at sqlline.SqlLine.main(SqlLine.java:259)
> {code}
> Here is the plan for such query:
> {noformat}
> 0: jdbc:drill:> explain plan for select lead(col0) from `fewRowsAllData.parquet`;
> +------+------+
> | text | json |
> +------+------+
> | 00-00    Screen
> 00-01      Project(EXPR$0=[$0])
> 00-02        StreamAgg(group=[{}], EXPR$0=[LEAD($0)])
> 00-03          Scan(groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath [path=file:/Users/hakim/MapR/data/3601.parquet]],
selectionRoot=file:/Users/hakim/MapR/data/fewRowsAllData.parquet, numFiles=1, columns=[`col0`]]])
> {noformat}



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