12 lines
541 B
SQL
12 lines
541 B
SQL
-- C-03：完成时刻列与清理索引（编号避开 U-02 的 0003）
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ALTER TABLE messages ADD COLUMN completed_at INTEGER;
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UPDATE messages SET completed_at = COALESCE(
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(SELECT MAX(d.updated_at) FROM deliveries d WHERE d.seq = messages.seq),
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send_at
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) WHERE state = 'completed' AND completed_at IS NULL;
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CREATE INDEX IF NOT EXISTS idx_messages_completed_at ON messages(completed_at);
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CREATE INDEX IF NOT EXISTS idx_receipts_created ON receipts(created_at);
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CREATE INDEX IF NOT EXISTS idx_send_keys_created ON send_keys(created_at);
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