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https://issues.apache.org/jira/browse/DRILL-3601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14700328#comment-14700328
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Jinfeng Ni commented on DRILL-3601:
-----------------------------------
I think Sean has a fix for CALCITE-820, which should fix this problem : windown
function without over clause would be blocked in Calcite.
> 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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