23 lines
667 B
SQL
23 lines
667 B
SQL
DO $$
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BEGIN
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IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'cost_layer') THEN
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CREATE TYPE cost_layer AS (qty FLOAT8, cost FLOAT8);
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END IF;
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END $$;
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CREATE TABLE IF NOT EXISTS Backpack_item_locations(
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id SERIAL PRIMARY KEY,
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part_id INTEGER NOT NULL,
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location_id INTEGER NOT NULL,
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quantity_on_hand FLOAT8 NOT NULL,
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cost_layers cost_layer[],
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UNIQUE(part_id, location_id),
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CONSTRAINT fk_part_id
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FOREIGN KEY(part_id)
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REFERENCES Backpack_items(id)
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ON DELETE CASCADE,
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CONSTRAINT fk_location_id
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FOREIGN KEY(location_id)
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REFERENCES Backpack_locations(id)
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ON DELETE CASCADE
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); |