22 lines
958 B
SQL
22 lines
958 B
SQL
-- 门店多分类关联表（v4.0.9+）
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-- 执行：mysql ... < migrate-store-category-link.sql
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CREATE TABLE IF NOT EXISTS store_category_link (
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id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
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store_id BIGINT UNSIGNED NOT NULL,
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category_id BIGINT UNSIGNED NOT NULL,
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priority INT NOT NULL DEFAULT 0,
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created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
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PRIMARY KEY (id),
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UNIQUE KEY uk_store_category_link (store_id, category_id),
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KEY idx_store_category_link_category (category_id),
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CONSTRAINT fk_store_category_link_store FOREIGN KEY (store_id) REFERENCES store_store(id) ON DELETE CASCADE,
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CONSTRAINT fk_store_category_link_category FOREIGN KEY (category_id) REFERENCES common_store_category(id) ON DELETE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
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-- 从现有主分类回填
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INSERT IGNORE INTO store_category_link (store_id, category_id, priority)
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SELECT id, category_id, 0
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FROM store_store
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WHERE category_id IS NOT NULL;
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