Removed serial_number / item_id - serial_number unique constrain and Added combined unique constraints using plant_id and item_id
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@@ -20,13 +20,13 @@ return new class extends Migration
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plant_id BIGINT NOT NULL,
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item_id BIGINT NOT NULL,
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serial_number TEXT NOT NULL UNIQUE,
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serial_number TEXT NOT NULL,
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created_at TIMESTAMP NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMP NOT NULL DEFAULT NOW(),
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deleted_at TIMESTAMP,
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UNIQUE (item_id, serial_number),
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UNIQUE (plant_id, serial_number),
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FOREIGN KEY (item_id) REFERENCES items (id),
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FOREIGN KEY (line_id) REFERENCES lines (id),
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FOREIGN KEY (shift_id) REFERENCES shifts (id),
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