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https://issues.apache.org/jira/browse/DRILL-3630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Khurram Faraaz updated DRILL-3630:
----------------------------------
Assignee: Deneche A. Hakim (was: Chris Westin)
> error message needs to be fixed LEAD , LAG window functions
> -----------------------------------------------------------
>
> Key: DRILL-3630
> URL: https://issues.apache.org/jira/browse/DRILL-3630
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Flow
> Affects Versions: 1.2.0
> Environment: private-branch
> https://github.com/adeneche/incubator-drill/tree/new-window-funcs
> Reporter: Khurram Faraaz
> Assignee: Deneche A. Hakim
> Priority: Minor
> Labels: window_function
>
> The error message says LEAD expects ONE input argument, however if you see in
> the other query below, lead( col9 , 1 ) does not throw any error (as this is
> valid syntax and is supported). Another case is, lead(col9,1,1) where we
> don't report any error being reported. We need to fix the error message and
> handle inputs appropriately.
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select col9 , lead(col9,1,0,1) over(partition
> by col7 order by col0) lead_col9 from FEWRWSPQQ_101;
> Error: PARSE ERROR: From line 1, column 15 to line 1, column 35: Invalid
> number of arguments to function 'LEAD'. Was expecting 1 arguments
> [Error Id: 4a94487c-42e6-4672-978e-f011c997c537 on centos-03.qa.lab:31010]
> (state=,code=0)
> {code}
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select col9 , lead(col9,1) over(partition by
> col7 order by col0) lead_col9 from FEWRWSPQQ_101;
> +-------------------------------------------------------+-------------------------------------------------------+
> | col9 |
> lead_col9 |
> +-------------------------------------------------------+-------------------------------------------------------+
> | OXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> ZXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | ZXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> AXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | AXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> CXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | CXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> HXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | HXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> UXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | UXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> TXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> | TXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> PXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> | PXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> NXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | NXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> MXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | MXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> WXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | WXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB | null
> |
> | KXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> BXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> | BXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> DXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | DXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> IXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> | IXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXD |
> YXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | YXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> EXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | EXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> LXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | LXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> SXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | SXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> VXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | VXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> FXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> | FXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXB |
> QXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ |
> | QXXXXXXXXXXXXXXXXXXXXXXXXXCXXXXXXXXXXXXXXXXXXXXXXXXZ | null
> |
> +-------------------------------------------------------+-------------------------------------------------------+
> 22 rows selected (0.245 seconds)
> {code}
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