6 lines
372 B
SQL
6 lines
372 B
SQL
ALTER TABLE quiz_answers ADD COLUMN IF NOT EXISTS option_id UUID REFERENCES quiz_options(id) ON DELETE SET NULL;
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-- Lossy for multi answers: keeps the first chosen option only.
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UPDATE quiz_answers SET option_id = option_ids[1] WHERE option_ids IS NOT NULL;
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ALTER TABLE quiz_answers DROP COLUMN IF EXISTS option_ids;
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ALTER TABLE quiz_questions DROP COLUMN IF EXISTS multi;
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