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#
# Test COPY ALTER failures at various stages
# - on failure, they should rollback restoring the
# original table definitions and cleanup the
# temporary tables.
#
# Failure when attempting to copy rows
#
SHOW CREATE TABLE t8;
Table Create Table
t8 CREATE TABLE `t8` (
`a` int DEFAULT NULL,
`b` varchar(255) DEFAULT NULL,
`c` datetime NOT NULL,
`d` int unsigned DEFAULT NULL,
`e` int NOT NULL
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT * FROM t8 ORDER BY a;
a b c d e
1 1-t8 2017-10-20 09:13:01 NULL 1
2 2-t8 2017-10-20 09:13:02 NULL 2
3 3-t8 2017-10-20 09:13:03 NULL 3
4 4-t8 2017-10-20 09:13:04 NULL 4
5 5-t8 2017-10-20 09:13:05 NULL 5
# Following alter should fail with error WARN_DATA_TRUNCATED
# as it tries to copy NULL value to non NULL column
ALTER TABLE t8
CHANGE COLUMN d d INT NOT NULL,
ALGORITHM = COPY;
ERROR 01000: Data truncated for column 'd' at row 1
# Verify that the table is intact locally and across all servers.
# Also verify that there are no tables with temp names left behind.
SHOW CREATE TABLE t8;
Table Create Table
t8 CREATE TABLE `t8` (
`a` int DEFAULT NULL,
`b` varchar(255) DEFAULT NULL,
`c` datetime NOT NULL,
`d` int unsigned DEFAULT NULL,
`e` int NOT NULL
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
== verify_mysql_dd.inc ==
Number of tables with temp name in NDB
0
# Bug#31546868 NDB : HA_NDBCLUSTER NOT ROLLING BACK TRANSACTION BEFORE ROLLING BACK DDL
USE ndb_ddl_test;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT * FROM t1 ORDER BY a;
a b
1 1
2 2
3 3
4 4
5 5
# Following alter should fail with ER_CHECK_CONSTRAINT_VIOLATED
# as a row violates the check constraint it is trying to enforce
ALTER TABLE t1
ADD CONSTRAINT t1_c1 CHECK(a < 5),
ALGORITHM = COPY;
ERROR HY000: Check constraint 't1_c1' is violated.
# Verify that the table is intact locally and across all servers.
# Also verify that there are no tables with temp names left behind.
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
== verify_mysql_dd.inc ==
Number of tables with temp name in NDB
0
#
# Failure during the first rename
#
USE ndb_ddl_test;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
set debug='+d,ndb_simulate_alter_failure_rename1';
ALTER TABLE t1
ADD COLUMN c INT,
ALGORITHM = COPY;
ERROR HY000: Internal error: Simulated : Failed to rename original table to a temp name.
# Verify that the table is intact locally and across all servers.
# Also verify that there are no tables with temp names left behind.
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
== verify_mysql_dd.inc ==
Number of tables with temp name in NDB
0
# ALTER should run now
ALTER TABLE t1
ADD COLUMN c INT,
ALGORITHM = COPY;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
`c` int DEFAULT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
#
# Failure during the second rename
#
set debug='+d,ndb_simulate_alter_failure_rename2';
ALTER TABLE t1
DROP COLUMN c,
ALGORITHM = COPY;
ERROR HY000: Internal error: Simulated : Failed to rename new table to target name.
# Verify that the table is intact locally and across all servers.
# Also verify that there are no tables with temp names left behind.
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
`c` int DEFAULT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
== verify_mysql_dd.inc ==
Number of tables with temp name in NDB
0
# ALTER should run now
ALTER TABLE t1
DROP COLUMN c,
ALGORITHM = COPY;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
#
# Failure after the table has been renamed to new name
#
set debug='+d,ndb_simulate_failure_after_table_rename';
ALTER TABLE t1
RENAME TO t1_new,
ALGORITHM = COPY;
ERROR HY000: Internal error: Simulated : Failed after renaming the table.
# Verify that the table is intact locally and across all servers.
# Also verify that there are no tables with temp names left behind.
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
== verify_mysql_dd.inc ==
Number of tables with temp name in NDB
0
# ALTER should run now
ALTER TABLE t1
RENAME TO t1_new,
ALGORITHM = COPY;
SHOW CREATE TABLE t1_new;
Table Create Table
t1_new CREATE TABLE `t1_new` (
`a` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`a`,`b`),
KEY `b` (`b`)
) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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