Store daily exchange rates in PostgreSQL with EUR/DKK cross rate. Seed rates atom from DB on startup so WebSocket works immediately even if Frankfurter is unreachable. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
64 lines
2.4 KiB
SQL
64 lines
2.4 KiB
SQL
-- queries for btcdata
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-- :name insert-binance-price! :! :n
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-- :doc Insert a Binance BTC price
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INSERT INTO binance_price (price) VALUES (:price)
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-- :name get-latest-binance-price :? :1
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-- :doc Get the most recent Binance BTC price
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SELECT price, recorded_at FROM binance_price ORDER BY id DESC LIMIT 1
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-- :name upsert-kraken-hour! :! :n
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-- :doc Upsert a Kraken hourly OHLC candle
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INSERT INTO kraken_hour (ts, open, high, low, close, vwap, volume, trade_count)
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VALUES (:ts, :open, :high, :low, :close, :vwap, :volume, :trade-count)
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ON CONFLICT (ts) DO UPDATE
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SET open = EXCLUDED.open,
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high = EXCLUDED.high,
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low = EXCLUDED.low,
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close = EXCLUDED.close,
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vwap = EXCLUDED.vwap,
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volume = EXCLUDED.volume,
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trade_count = EXCLUDED.trade_count
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-- :name get-latest-kraken-hour :? :1
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-- :doc Get the most recent Kraken hourly candle by timestamp
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SELECT ts, open, high, low, close, vwap, volume, trade_count, created_at
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FROM kraken_hour ORDER BY ts DESC LIMIT 1
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-- :name upsert-kraken-day! :! :n
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-- :doc Upsert a Kraken daily OHLC candle
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INSERT INTO kraken_day (ts, open, high, low, close, vwap, volume, trade_count)
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VALUES (:ts, :open, :high, :low, :close, :vwap, :volume, :trade-count)
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ON CONFLICT (ts) DO UPDATE
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SET open = EXCLUDED.open,
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high = EXCLUDED.high,
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low = EXCLUDED.low,
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close = EXCLUDED.close,
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vwap = EXCLUDED.vwap,
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volume = EXCLUDED.volume,
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trade_count = EXCLUDED.trade_count
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-- :name get-latest-kraken-day :? :1
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-- :doc Get the most recent Kraken daily candle by timestamp
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SELECT ts FROM kraken_day ORDER BY ts DESC LIMIT 1
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-- :name insert-strike-price! :! :n
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-- :doc Insert a Strike ticker snapshot
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INSERT INTO strike_price (rates, quote_sats) VALUES (:rates, :quote-sats)
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-- :name get-latest-strike-price :? :1
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-- :doc Get the most recent Strike ticker snapshot
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SELECT rates, recorded_at FROM strike_price ORDER BY id DESC LIMIT 1
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-- :name upsert-currency-rates! :! :n
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-- :doc Upsert daily currency rates from Frankfurter
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INSERT INTO currencies (rate_date, eur, dkk, eur_dkk, updated_at)
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VALUES (:rate-date, :eur, :dkk, :eur-dkk, NOW())
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ON CONFLICT (rate_date) DO UPDATE
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SET eur = EXCLUDED.eur, dkk = EXCLUDED.dkk, eur_dkk = EXCLUDED.eur_dkk, updated_at = NOW()
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-- :name get-latest-currency-rates :? :1
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-- :doc Get the most recent currency rates
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SELECT eur, dkk, eur_dkk, updated_at FROM currencies ORDER BY rate_date DESC LIMIT 1
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