23 lines
435 B
MySQL
23 lines
435 B
MySQL
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BEGIN;
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ALTER TABLE receipts
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ADD COLUMN transaction_id INT;
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UPDATE receipts
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SET transaction_id = (
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SELECT id FROM transactions WHERE transactions.hash = receipts.tx_hash
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);
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ALTER TABLE receipts
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ALTER COLUMN transaction_id SET NOT NULL;
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ALTER TABLE receipts
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ADD CONSTRAINT transaction_fk
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FOREIGN KEY (transaction_id)
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REFERENCES transactions (id)
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ON DELETE CASCADE;
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ALTER TABLE receipts
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DROP COLUMN block_id;
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COMMIT;
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