mariadb/mysql-test/suite/innodb/t/alter_candidate_key.test
Thirunarayanan Balathandayuthapani a0f3b9f94f MDEV-17376 Server fails to set ADD_PK_INDEX, DROP_PK_INDEX if unique index nominated as PK
Problem:
========
Server fails to notify the engine by not setting the ADD_PK_INDEX and
DROP_PK_INDEX When there is a
 i) Change in candidate for primary key.
 ii) New candidate for primary key.

Fix:
====
Server sets the ADD_PK_INDEX and DROP_PK_INDEX while doing alter for the
above problematic case.
2019-01-24 13:52:51 +05:30

72 lines
2 KiB
Text

--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
CREATE TABLE t1 (f1 INT NOT NULL, f2 INT NOT NULL,
UNIQUE KEY uidx2(f1,f2),
UNIQUE KEY uidx1(f2)) ENGINE=InnoDB;
INSERT INTO t1 VALUES(1, 1);
SHOW CREATE TABLE t1;
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter
SIGNAL conc_dml WAIT_FOR go_ahead';
--send ALTER TABLE t1 CHANGE COLUMN f1 f11 INT, ALGORITHM=INPLACE
connect (con1,localhost,root,,);
SET DEBUG_SYNC = 'now WAIT_FOR conc_dml';
DELETE FROM t1;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SHOW CREATE TABLE t1;
CHECK TABLE t1;
DROP TABLE t1;
CREATE TABLE t1(f1 INT, f2 INT,
PRIMARY KEY(f1, f2),
UNIQUE INDEX uidx2 (f1, f2),
UNIQUE INDEX uidx1 (f2))ENGINE=InnoDB;
ALTER TABLE t1 DROP PRIMARY KEY;
SHOW CREATE TABLE t1;
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter
SIGNAL conc_dml WAIT_FOR go_ahead';
--send ALTER TABLE t1 CHANGE COLUMN f1 f11 INT, ALGORITHM=INPLACE
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR conc_dml';
--error ER_DUP_ENTRY
INSERT INTO t1 VALUES(1, 1), (1, 1);
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SHOW CREATE TABLE t1;
CHECK TABLE t1;
DROP TABLE t1;
SET SQL_MODE= strict_trans_tables;
CREATE TABLE t1(a INT UNIQUE) ENGINE=InnoDB;
SET DEBUG_SYNC='row_log_table_apply1_before SIGNAL dml WAIT_FOR dml_done';
--send ALTER TABLE t1 MODIFY COLUMN a INT NOT NULL
connection con1;
SET DEBUG_SYNC='now WAIT_FOR dml';
BEGIN;
INSERT INTO t1 SET a=NULL;
ROLLBACK;
set DEBUG_SYNC='now SIGNAL dml_done';
connection default;
--error ER_INVALID_USE_OF_NULL
reap;
DROP TABLE t1;
disconnect con1;
SET DEBUG_SYNC="RESET";
SET SQL_MODE=DEFAULT;
CREATE TABLE t1(f1 INT NOT NULL, f2 INT NOT NULL, PRIMARY KEY(f1, f2),
UNIQUE KEY(f2))ENGINE=InnoDB;
ALTER TABLE t1 DROP PRIMARY KEY;
SHOW CREATE TABLE t1;
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL, f2 INT NOT NULL,
UNIQUE KEY(f2), UNIQUE KEY(f2))ENGINE=InnoDB;
SHOW CREATE TABLE t1;
ALTER TABLE t1 DROP INDEX f2, ALGORITHM=INPLACE;
SHOW CREATE TABLE t1;
DROP TABLE t1;