[jira] [Updated] (DRILL-5622) DISTINCT predicate generates invalid SQL for a JDBC data source such as ORACLE

["Kunal Khatua (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-5622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kunal Khatua updated DRILL-5622:
--------------------------------
    Component/s: Storage - JDBC

> DISTINCT predicate generates invalid SQL for a JDBC data source such as ORACLE
> ------------------------------------------------------------------------------
>
>                 Key: DRILL-5622
>                 URL: https://issues.apache.org/jira/browse/DRILL-5622
>             Project: Apache Drill
>          Issue Type: Bug
>          Components:  Server, Storage - JDBC
>    Affects Versions: 1.10.0
>         Environment: ORACLE 12
> Apache Drill 1.10
>            Reporter: N Campbell
>            Priority: Major
>
> The SQL generated by DRILL to a database such as ORACLE is inavlid
> SELECT RNUM, TINT.CINT FROM certora.DBCERT.TINT WHERE TINT.CINT IS DISTINCT FROM 1
> DATA_READ ERROR: The JDBC storage plugin failed while trying setup the SQL query. 
> SELECT *
> FROM "DBCERT"."TINT"
> WHERE CAST(CASE WHEN "CINT" IS NULL THEN 1 IS NOT NULL WHEN 1 IS NULL THEN "CINT" IS NOT NULL ELSE "CINT" <> 1 END AS BOOLEAN)
> plugin certora
> Fragment 0:0
>  CREATE TABLE "DBCERT"."TINT" 
>    (	"RNUM" NUMBER, 
> 	"CINT" NUMBER(9,0)
>    ) ;
> Insert into DBCERT.TINT (RNUM,CINT) values (0,null);
> Insert into DBCERT.TINT (RNUM,CINT) values (1,-1);
> Insert into DBCERT.TINT (RNUM,CINT) values (2,0);
> Insert into DBCERT.TINT (RNUM,CINT) values (3,1);
> Insert into DBCERT.TINT (RNUM,CINT) values (4,10);



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