1 files changed, 71 insertions, 0 deletions
diff --git a/mysql-test/main/partition_utf8-debug.test b/mysql-test/main/partition_utf8-debug.test
new file mode 100644
index 00000000..c321c944
--- /dev/null
+++ b/mysql-test/main/partition_utf8-debug.test
@@ -0,0 +1,71 @@
+--source include/have_partition.inc
+--source include/have_debug_sync.inc
+
+--echo #
+--echo # Start of 10.5 tests
+--echo #
+
+--echo #
+--echo # MDEV-20856 Bad values in metadata views for partitions on VARBINARY
+--echo #
+
+SET NAMES utf8;
+SET @save_dbug = @@debug_dbug;
+SET SESSION debug_dbug="+d,generate_partition_syntax_for_frm";
+
+
+--error ER_PARTITION_FUNCTION_IS_NOT_ALLOWED
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'Ṡ'));
+
+--error ER_PARTITION_FUNCTION_IS_NOT_ALLOWED
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('Ṡ'));
+
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_latin1 0xDF));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'ß'));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET latin1
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('ß'));
+DROP TABLE t1;
+
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET utf8
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (_utf8'ß'));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+CREATE OR REPLACE TABLE t1 (a VARCHAR(10)) CHARACTER SET utf8
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN ('ß'));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+
+CREATE OR REPLACE TABLE t1 (a VARBINARY(10)) CHARACTER SET utf8
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (0xFF));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+
+CREATE OR REPLACE TABLE t1 (a DATE) CHARACTER SET utf8
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (FROM_DAYS(NULL)));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+CREATE OR REPLACE TABLE t1 (a DATE) CHARACTER SET utf8
+  PARTITION BY LIST COLUMNS (a) (PARTITION p0 VALUES IN (FROM_DAYS(100)));
+SELECT PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+DROP TABLE t1;
+
+
+SET debug_dbug=@save_dbug;
+
+--echo #
+--echo # End of 10.5 tests
+--echo #