diff options
Diffstat (limited to 'mysql-test/main/merge.result')
| -rw-r--r-- | mysql-test/main/merge.result | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/main/merge.result b/mysql-test/main/merge.result index 0d6f387a7bc..9550e470935 100644 --- a/mysql-test/main/merge.result +++ b/mysql-test/main/merge.result @@ -3038,6 +3038,7 @@ c1 c2 411 421 511 521 # +truncate table m1; ALTER TABLE m1 ENGINE=MRG_MyISAM UNION=(t1,t2) INSERT_METHOD=LAST; SELECT * FROM m1; @@ -3445,6 +3446,7 @@ c1 c2 411 421 511 521 # +truncate table m1; ALTER TABLE m1 ENGINE=MRG_MyISAM UNION=(t1,t2) INSERT_METHOD=LAST; SELECT * FROM m1; @@ -3919,3 +3921,14 @@ ERROR HY000: Unable to open underlying table which is differently defined or of DROP TRIGGER trg1; DROP TABLE t1; DROP TABLE m1; +# +# MDEV-23485 - Change table to merge engine may cause table data lost. +# +CREATE TABLE t1(a INT); +ALTER TABLE t1 engine=MRG_MYISAM; +drop table t1; +CREATE TABLE t1(a INT); +insert into t1() values(1); +ALTER TABLE t1 engine=MRG_MYISAM; +ERROR HY000: ALTER TABLE TO MERGE ENGINE is not supported for this operation, The original table is not merge engine and have rows may cause table data lost. +drop table t1; |