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15 lines
678 B
15 lines
678 B
-- Dynamically create DROP FOREIGN KEY
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-- Some versions of MySQL or MariaDB might fail if the key doesn't exists
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-- This checks if the key exists, and if so, will drop it.
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SET @drop_sso_fk = IF((SELECT true FROM information_schema.TABLE_CONSTRAINTS WHERE
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CONSTRAINT_SCHEMA = DATABASE() AND
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TABLE_NAME = 'sso_users' AND
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CONSTRAINT_NAME = 'sso_users_ibfk_1' AND
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CONSTRAINT_TYPE = 'FOREIGN KEY') = true,
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'ALTER TABLE sso_users DROP FOREIGN KEY sso_users_ibfk_1',
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'SELECT 1');
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PREPARE stmt FROM @drop_sso_fk;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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ALTER TABLE sso_users ADD FOREIGN KEY(user_uuid) REFERENCES users(uuid) ON UPDATE CASCADE ON DELETE CASCADE;
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