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From "N Campbell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-5652) Drill pushed invalid SQL to SQL Server when concat operator used
Date Sun, 02 Jul 2017 12:27:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-5652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

N Campbell updated DRILL-5652:
------------------------------
    Component/s:     (was:  Server)
                 Storage - JDBC

> Drill pushed invalid SQL to SQL Server when concat operator used
> ----------------------------------------------------------------
>
>                 Key: DRILL-5652
>                 URL: https://issues.apache.org/jira/browse/DRILL-5652
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - JDBC
>    Affects Versions: 1.10.0
>         Environment: Drill 1.10
> SQL Server 2016
>            Reporter: N Campbell
>
> plugin to SQL Server 2016 via JDBC defined
> following statement sent to Drill which fails due to invalid operator pushed down in
the SQL 
> select RNUM, '1234567890' || TVCHAR.CVCHAR  from certsqlserver.dbo.TVCHAR 
> DATA_READ ERROR: The JDBC storage plugin failed while trying setup the SQL query. 
> SELECT "RNUM", '1234567890' || "CVCHAR" AS "EXPR$1"
> FROM "dbo"."TVCHAR"
> Note also if two constants were used the expression pushed to SQL Server uses blank strings
instead of the specified non-blank value
> SQL: select 'FF' || 'FF'  from certsqlserver.dbo.TVERSION
>  SELECT '' || '' AS "EXPR$0"
> FROM "dbo"."TVERSION"
> https://docs.microsoft.com/en-us/sql/t-sql/language-elements/string-operators-transact-sql



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