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--
-- This file is part of TALER
-- Copyright (C) 2024 Taler Systems SA
--
-- TALER is free software; you can redistribute it and/or modify it under the
-- terms of the GNU General Public License as published by the Free Software
-- Foundation; either version 3, or (at your option) any later version.
--
-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License along with
-- TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
--
-- Everything in one big transaction
BEGIN;
-- Check patch versioning is in place.
SELECT _v.register_patch('merchant-0006', NULL, NULL);
SET search_path TO merchant;
CREATE TABLE IF NOT EXISTS merchant_categories
(category_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
,merchant_serial BIGINT NOT NULL
REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
,category_name TEXT NOT NULL UNIQUE
,category_name_i18n BYTEA NOT NULL
);
COMMENT ON COLUMN merchant_categories.category_name
IS 'name of the category';
COMMENT ON COLUMN merchant_categories.category_name_i18n
IS 'JSON with translations of the category name';
CREATE TABLE merchant_product_categories
(category_serial BIGINT NOT NULL
REFERENCES merchant_categories (category_serial) ON DELETE CASCADE
,product_serial BIGINT NOT NULL
REFERENCES merchant_inventory (product_serial) ON DELETE CASCADE);
CREATE INDEX merchant_categories_by_category
ON merchant_product_categories (category_serial);
CREATE INDEX merchant_categories_by_product
ON merchant_product_categories (product_serial);
COMMENT ON COLUMN merchant_product_categories.category_serial
IS 'Reference to a category the product is part of';
COMMENT ON COLUMN merchant_product_categories.product_serial
IS 'Reference to a product which is in the given category';
-- Complete transaction
COMMIT;
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