7094438152
With this cost function, buying and selling is a lot easier since it uses the same function. Also, shares are now always integers which is also easier to grasp. Reference: http://blog.oddhead.com/2006/10/30/implementing-hansons-market-maker/
38 lines
1.1 KiB
SQL
38 lines
1.1 KiB
SQL
CREATE TABLE lnauth(
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k1 VARCHAR(64) NOT NULL PRIMARY KEY,
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lnurl TEXT NOT NULL,
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created TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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session_id VARCHAR(48) NOT NULL DEFAULT encode(gen_random_uuid()::text::bytea, 'base64')
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);
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CREATE TABLE users(
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pubkey TEXT PRIMARY KEY,
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last_seen TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE sessions(
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pubkey TEXT NOT NULL REFERENCES users(pubkey),
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session_id VARCHAR(48)
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);
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CREATE TABLE markets(
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id SERIAL PRIMARY KEY,
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description TEXT NOT NULL,
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funding BIGINT NOT NULL,
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active BOOLEAN DEFAULT true
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);
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CREATE EXTENSION "uuid-ossp";
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CREATE TABLE shares(
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id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
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market_id INTEGER REFERENCES markets(id),
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description TEXT NOT NULL,
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quantity BIGINT NOT NULL DEFAULT 0
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);
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CREATE TYPE order_side AS ENUM ('BUY', 'SELL');
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CREATE TABLE trades(
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id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
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share_id UUID NOT NULL REFERENCES shares(id),
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pubkey TEXT NOT NULL REFERENCES users(pubkey),
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side ORDER_SIDE NOT NULL,
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quantity BIGINT NOT NULL,
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msats BIGINT NOT NULL
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);
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