15 lines
697 B
SQL
15 lines
697 B
SQL
-- One question per symbol per canonical (older, newer) session-half slot pair.
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ALTER TABLE market_history_prospective_questions
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DROP CONSTRAINT IF EXISTS market_history_prospective_questions_compare_until_symbol_key;
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ALTER TABLE market_history_prospective_questions
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DROP CONSTRAINT IF EXISTS market_history_prospective_questions_slot_pair_symbol_key;
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ALTER TABLE market_history_prospective_questions
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ADD CONSTRAINT market_history_prospective_questions_slot_pair_symbol_key
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UNIQUE (symbol, older_slot_start, newer_slot_start);
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CREATE INDEX IF NOT EXISTS market_history_prospective_questions_slot_pair_idx
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ON market_history_prospective_questions (older_slot_start, newer_slot_start);
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