12 lines
443 B
MySQL
12 lines
443 B
MySQL
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-- Your SQL goes here
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CREATE TABLE mentions2 (
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id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
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mentioned_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
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post_id INTEGER REFERENCES posts(id) ON DELETE CASCADE,
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comment_id INTEGER REFERENCES comments(id) ON DELETE CASCADE
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);
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INSERT INTO mentions2 SELECT id,mentioned_id,post_id,comment_id FROM mentions;
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DROP TABLE mentions;
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ALTER TABLE mentions2 RENAME TO mentions;
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