--source include/have_partition.inc

--echo #
--echo # MDEV-6255 DUPLICATE KEY Errors on SELECT .. GROUP BY that uses temporary and filesort
--echo #

# cp1251_ukrainian_ci: 0x20 SPACE is equal to 0x60 GRAVE ACCENT 
CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET cp1251 COLLATE cp1251_ukrainian_ci);
INSERT INTO t1 VALUES (0x20),(0x60),(0x6060),(0x606060);
SELECT HEX(a) FROM t1 WHERE a=0x60;
ALTER TABLE t1  PARTITION BY KEY(a) PARTITIONS 3;
SELECT HEX(a) FROM t1 WHERE a=0x60;
DROP TABLE t1;

# koi8u_general_ci: 0x20 SPACE is equal to 0x60 GRAVE ACCENT 
CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET koi8u COLLATE koi8u_general_ci);
INSERT INTO t1 VALUES (0x20),(0x60),(0x6060),(0x606060);
SELECT HEX(a) FROM t1 WHERE a=0x60;
ALTER TABLE t1  PARTITION BY KEY(a) PARTITIONS 3;
SELECT HEX(a) FROM t1 WHERE a=0x60;
DROP TABLE t1;

# cp1250_general_ci: 0x20 SPACE is equal to 0xA0 NO-BREAK SPACE
CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET cp1250 COLLATE cp1250_general_ci);
INSERT INTO t1 VALUES (0x20),(0xA0),(0xA0A0),(0xA0A0A0);
SELECT HEX(a) FROM t1 WHERE a=0xA0;
ALTER TABLE t1  PARTITION BY KEY(a) PARTITIONS 3;
SELECT HEX(a) FROM t1 WHERE a=0xA0;
DROP TABLE t1;