# -------------------------------------------------------------- #
# Test case migrated from regression test suite: MCOL-1531.sql
#
# Author: Daniel Lee, daniel.lee@mariadb.com
# -------------------------------------------------------------- #
#
--source ../include/have_columnstore.inc
#
USE tpch1;
#
--disable_warnings
DROP TABLE IF EXISTS cs1;
DROP TABLE IF EXISTS cs2;
--enable_warnings

CREATE TABLE `cs1` (
  `t` varchar(2) DEFAULT NULL,
  `i` int(11) DEFAULT NULL
) ENGINE=Columnstore;
CREATE TABLE `cs2` (
  `t` varchar(2) DEFAULT NULL,
  `i` int(11) DEFAULT NULL
) ENGINE=Columnstore;
insert into cs1 values ('MO', 2);
insert into cs1 values (NULL, 2);

select * from cs1 inner join cs2 on (cs1.t = case cs2.t when NULL then 'MO' else cs2.t end);

--disable_warnings
DROP TABLE IF EXISTS cs1;
DROP TABLE IF EXISTS cs2;
--enable_warnings
#