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37 lines
1.3 KiB
37 lines
1.3 KiB
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# --- !Ups
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-- we pre-compute the balances while storing transactions in order to perform
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-- simpler queries while requiring addresses and the available amounts.
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CREATE TABLE balances(
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address VARCHAR(34) NOT NULL,
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received DECIMAL(30, 15) NOT NULL,
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spent DECIMAL(30, 15) NOT NULL,
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available DECIMAL(30, 15) NOT NULL,
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-- constraints
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CONSTRAINT balances_address_pk PRIMARY KEY (address),
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CONSTRAINT balances_address_format CHECK (address ~ '[a-zA-Z0-9]{34}$')
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-- TODO: useful to add them if we can support them
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-- CONSTRAINT balances_available_check CHECK (available = received - spent),
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-- CONSTRAINT balances_received_ge_spent_check CHECK (received >= spent),
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-- CONSTRAINT balances_received_positive_check CHECK (received >= 0),
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-- CONSTRAINT balances_spent_positive_check CHECK (spent >= 0)
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);
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CREATE INDEX balances_available_index ON balances (available);
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-- there are certain addresses that we need to hide from public, like the one
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-- used for the coin swap.
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CREATE TABLE hidden_addresses(
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address VARCHAR(34) NOT NULL,
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-- constraints
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CONSTRAINT hidden_addresses_address_pk PRIMARY KEY (address),
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CONSTRAINT hidden_addresses_address_format CHECK (address ~ '[a-zA-Z0-9]{34}$')
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);
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# --- !Downs
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DROP TABLE hidden_addresses;
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DROP TABLE balances;
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