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