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4a1c66290d
On an error (such as when an index cannot be dropped due to
FOREIGN KEY constraints), the field dict_index_t::to_be_dropped
was only being cleared in debug builds, even though the field
is available and being used also in non-debug builds.
This was a regression that was introduced by myself originally
in MySQL 5.7.6 and later merged to MariaDB 10.2.2, in
d39898de8e
An error manifested itself in the MariaDB Server 10.4 non-debug build,
involving instant ADD or DROP column. Because an earlier failed
ALTER TABLE operation incorrectly left the dict_index_t::to_be_dropped
flag set, the column pointers of the index fields would fail to be
adjusted for instant ADD or DROP column (MDEV-15562). The instant
ADD COLUMN in MariaDB Server 10.3 is unlikely to be affected by a
similar scenario, because dict_table_t::instant_add_column() in 10.3
is applying the transformations to all indexes, not skipping
to-be-dropped ones.
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
--source include/have_innodb.inc
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#
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# MDEV-11995 ALTER TABLE proceeds despite reporting ER_TOO_LONG_KEY error
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#
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set @@sql_mode=strict_trans_tables;
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create table t1(a text not null) row_format=dynamic engine=innodb;
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create index idx1 on t1(a(3073));
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show create table t1;
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drop table t1;
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set @@sql_mode=default;
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#
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# MDEV-14081 ALTER TABLE CHANGE COLUMN Corrupts Index Leading to Crashes in 10.2
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#
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create table t1 (
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id1 int(11) not null auto_increment,
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id2 varchar(30) not null,
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id3 datetime not null default current_timestamp,
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primary key (id1),
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unique key unique_id2 (id2)
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) engine=innodb;
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alter table t1 change column id2 id4 varchar(100) not null;
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select * from t1 where id4 like 'a';
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drop table t1;
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--echo #
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--echo # MDEV-17725 Assertion `!is_set() || (m_status == DA_OK_BULK && is_bulk_op())' failed in Diagnostics_area::set_ok_status upon ALTER failing due to error from engine
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--echo #
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SET sql_mode=STRICT_ALL_TABLES;
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB;
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ALTER TABLE t1 ORDER BY a;
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DROP TABLE t1;
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SET sql_mode='';
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB;
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ALTER TABLE t1 ORDER BY a;
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DROP TABLE t1;
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SET sql_mode=DEFAULT;
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--echo #
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--echo # MDEV-18775 Server crashes in dict_table_t::instant_column
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--echo # upon ADD COLUMN
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--echo #
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CREATE TABLE tx (pk INT PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t1 (pk INT, a INT, PRIMARY KEY (pk), KEY (a), FOREIGN KEY (a) REFERENCES tx (pk)) ENGINE=InnoDB;
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SET FOREIGN_KEY_CHECKS=OFF;
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--error ER_FK_COLUMN_CANNOT_DROP
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ALTER TABLE t1 DROP a;
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SET FOREIGN_KEY_CHECKS=ON;
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ALTER TABLE t1 ADD b INT;
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--error ER_DROP_INDEX_FK
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ALTER TABLE t1 DROP a;
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ALTER TABLE t1 ADD c INT;
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DROP TABLE t1, tx;
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