diff options
Diffstat (limited to 'mysql-test/main/alter_table_online_debug.result')
| -rw-r--r-- | mysql-test/main/alter_table_online_debug.result | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/mysql-test/main/alter_table_online_debug.result b/mysql-test/main/alter_table_online_debug.result index 24c17a6feb1..fa0bec0c872 100644 --- a/mysql-test/main/alter_table_online_debug.result +++ b/mysql-test/main/alter_table_online_debug.result @@ -1101,6 +1101,48 @@ connection default; Warnings: Note 1105 Key chosen: 0 Note 1105 Key chosen: 0 +# +# Useful UNIQUE, though a virtual column on another extra field +# +create or replace table t (a int primary key, b int default (a+1)); +insert into t values (10, 10),(20, 20),(30, 30); +set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit'; +alter table t drop primary key, add c int default(a), +add d int as (c) stored unique, algorithm=copy, lock=none; +connection con2; +set debug_sync= 'now wait_for downgraded'; +delete from t where a = 20; +update t set a = a + 2 where a = 10; +set debug_sync= 'now signal goforit'; +connection default; +Warnings: +Note 1105 Key chosen: 0 +Note 1105 Key chosen: 0 +select * from t; +a b c d +12 10 12 12 +30 30 30 30 +# +# Now this index is not usable (missing DEFAULT on field c) +# +create or replace table t (a int primary key, b int); +insert into t values (10, 10),(20, 20),(30, 30); +set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit'; +alter table t drop primary key, add c real default(rand(a)), +add d real as (c) stored unique, algorithm=copy, lock=none; +connection con2; +set debug_sync= 'now wait_for downgraded'; +delete from t where a = 20; +update t set a = a + 2 where a = 10; +set debug_sync= 'now signal goforit'; +connection default; +Warnings: +Note 1105 Key chosen: -1 +Note 1105 Key chosen: -1 +select a, b from t; +a b +12 10 +30 30 drop table t; set debug_sync= reset; set debug_dbug= @old_debug; |