Facing the same issue:

2017/06/11 06:04:41 - Delete Registros.0 - Caused by: org.mariadb.jdbc.internal.util.dao.QueryException: Internal error: IDB-3033: Correlated subquery within OR operator is currently not supported.

2017/06/11 06:04:41 - Delete Registros.0 - Query is : delete from dbtest.h_closure_af 

2017/06/11 06:04:41 - Delete Registros.0 - where conta     in (select distinct conta_id from dbtest.d_h where emp = 1 ) or 

2017/06/11 06:04:41 - Delete Registros.0 -       conta_pai in (select distinct conta_id from dbtest.d_h where emp = 1 )

How to reproduce it in 1.1.5 version of Columnstore
```sql
CREATE TABLE `client_profil` (
`id_unique` bigint(12) NOT NULL DEFAULT 999999999999,
`nom` varchar(38) DEFAULT NULL
) ENGINE=Columnstore DEFAULT CHARSET=utf8 ;

CREATE TABLE `sollicitations` (
`num_auto` int(11) NOT NULL,
`id_unique` bigint(12) NOT NULL DEFAULT 999999999999,
`recu` int(11) NOT NULL DEFAULT 0
) ENGINE=Columnstore DEFAULT CHARSET=utf8;

SELECT cp.id_unique
FROM client_profil cp
WHERE cp.id_unique IN (
SELECT s.id_unique
FROM sollicitations s
WHERE s.num_auto IN ( 1, 2,3,4)
)
or cp.nom IN ( 'toto', 'tata');

ERROR 1815 (HY000): Internal error: IDB-3033: Correlated subquery within OR operator is currently not supported.
```

Hi Guys? Any update on this compatibility issue supporting correlated subquery within or operator?

Greetings,
This feature is not scheduled in our roadmap yet.

Since a subquery "OR" operator is not currently supported, would a union satisfy the request here?

SELECT cp.id_unique

FROM client_profil cp

WHERE cp.id_unique IN

    (SELECT s.id_unique

     FROM sollicitations s

     WHERE s.num_auto IN (1,2,3,4) )

UNION

SELECT cp.id_unique

FROM client_profil cp

WHERE cp.nom IN ('toto','tata');

You could even use GROUP BY to dedup

SELECT id_unique FROM (

SELECT cp.id_unique

FROM client_profil cp

WHERE cp.id_unique IN

    (SELECT s.id_unique

     FROM sollicitations s

     WHERE s.num_auto IN (1,2,3,4) )

UNION

SELECT cp.id_unique

FROM client_profil cp

WHERE cp.nom IN ('toto',

                 'tata')) AS t1

GROUP BY id_unique;

The "create date" on this ticket is pre-convergence with MariaDB server. If the issue still exists in a modern version of the engine/plugin please submit a new ticket.