MDEV-13584 Assertion `!part_elem->tablespace_name &&...

MDEV-13584 Assertion `!part_elem->tablespace_name && !table_create_info->tablespace' failed during EXCHANGE PARTITION with different TABLESPACE.

Wrong DBUG_ASSERT just removed.

mysql-test/main/partition_exchange.result

@@ -1297,3 +1297,14 @@ SHOW WARNINGS;
 Level	Code	Message
 UNLOCK TABLES;
 DROP TABLE t, t2, tp;
+#
+# Assertion `!part_elem->tablespace_name && !table_create_info->tablespace' 
+#                failed during EXCHANGE PARTITION with different TABLESPACE.
+#
+CREATE TABLE t1 (a VARCHAR(200)) PARTITION BY KEY(a) partitions 10;
+ALTER TABLE t1 ADD PARTITION (PARTITION pm TABLESPACE = `innodb_file_per_table`);
+CREATE TABLE t2 like t1;
+ALTER TABLE t2 REMOVE PARTITIONING;
+ALTER TABLE t1 EXCHANGE PARTITION pm WITH TABLE t2;
+ERROR HY000: Non matching attribute 'TABLESPACE' between partition and table
+DROP TABLE t1, t2;

mysql-test/main/partition_exchange.test

@@ -523,3 +523,16 @@ UNLOCK TABLES;
 dec $count;
 }
 DROP TABLE t, t2, tp;
+
+--echo #
+--echo # Assertion `!part_elem->tablespace_name && !table_create_info->tablespace' 
+--echo #                failed during EXCHANGE PARTITION with different TABLESPACE.
+--echo #
+CREATE TABLE t1 (a VARCHAR(200)) PARTITION BY KEY(a) partitions 10;
+ALTER TABLE t1 ADD PARTITION (PARTITION pm TABLESPACE = `innodb_file_per_table`);
+CREATE TABLE t2 like t1;
+ALTER TABLE t2 REMOVE PARTITIONING;
+--error ER_PARTITION_EXCHANGE_DIFFERENT_OPTION
+ALTER TABLE t1 EXCHANGE PARTITION pm WITH TABLE t2;
+DROP TABLE t1, t2;
+

sql/sql_partition.cc

@@ -4762,8 +4762,6 @@ bool compare_partition_options(HA_CREATE_INFO *table_create_info,
   const char *option_diffs[MAX_COMPARE_PARTITION_OPTION_ERRORS + 1];
   int i, errors= 0;
   DBUG_ENTER("compare_partition_options");
-  DBUG_ASSERT(!part_elem->tablespace_name &&
-              !table_create_info->tablespace);
 
   /*
     Note that there are not yet any engine supporting tablespace together