docker run --rm -p 20433:3306 -e MARIADB_DATABASE=test -e MARIADB_ROOT_PASSWORD=root mariadb:11.1.2
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mysql -h 127.0.0.1 --port=20433 -u root -proot test < migrate.sql
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migrate.sql:
CREATE TABLE items (
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id VARCHAR(20) NOT NULL,
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PRIMARY KEY (id)
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);
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CREATE TABLE sgs_data (
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id INT(11) NOT NULL AUTO_INCREMENT,
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Number varchar(15) NOT NULL DEFAULT '',
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PRIMARY KEY (id)
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);
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SET foreign_key_checks=0;
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ALTER TABLE sgs_data
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CHANGE COLUMN `Number` itemId VARCHAR(20) NOT NULL,
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ADD CONSTRAINT fk_sgs_data_itemId FOREIGN KEY (itemId) REFERENCES items (id);
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This causes the MariaDB server to crash (see attached log output).
- Moving the CHANGE COLUMN to a separate ALTER statement avoids the crash
- Removing `SET foreign_key_checks=0` avoids the crash
- Removing `CREATE TABLE items` still results in a crash even though the foreign key is invalid. If you additionally remove the `SET foreign_key_checks=0` it will instead report that the foreign key is malformed and not crash.
Verified on 10.6.15, 10.9.8 and 11.1.2 (all with docker).
Bug
Critical
