31 lines
1.9 KiB
Go
31 lines
1.9 KiB
Go
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// 功能描述：仅新增电商收藏关系表与中文注释；版本：1.0.0。
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package main
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// migrateEcFavorite 使用既有环境数据库配置，不执行其他表迁移或初始化数据。
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func migrateEcFavorite() error {
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return migrateClientColumns([]string{
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`CREATE TABLE IF NOT EXISTS ec_favorite (
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id bigserial PRIMARY KEY,
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identity varchar(36) NOT NULL UNIQUE,
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created_at timestamptz NOT NULL,
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updated_at timestamptz NOT NULL,
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deleted_at timestamptz,
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status integer NOT NULL DEFAULT 1 CHECK (status IN (1, 3)),
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user_account_id bigint NOT NULL REFERENCES user_account(id),
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ec_product_id bigint NOT NULL REFERENCES ec_product(id),
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revision bigint NOT NULL DEFAULT 1 CHECK (revision > 0),
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CONSTRAINT ux_ec_favorite_owner_product UNIQUE (user_account_id, ec_product_id)
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)`,
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`COMMENT ON TABLE ec_favorite IS '电商商品收藏关系；每账户每商品唯一，取消后归档，下架商品保留'`,
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`COMMENT ON COLUMN ec_favorite.id IS '收藏关系内部自增主键，不向客户端暴露'`,
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`COMMENT ON COLUMN ec_favorite.identity IS '收藏关系公开UUID V7标识'`,
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`COMMENT ON COLUMN ec_favorite.created_at IS '首次建立收藏关系的服务端时间'`,
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`COMMENT ON COLUMN ec_favorite.updated_at IS '最近一次收藏状态变化的服务端时间'`,
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`COMMENT ON COLUMN ec_favorite.deleted_at IS '软删除时间；用户取消收藏不写此字段而使用归档状态'`,
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`COMMENT ON COLUMN ec_favorite.status IS '收藏状态：1=已收藏，3=已取消并归档'`,
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`COMMENT ON COLUMN ec_favorite.user_account_id IS '收藏者账户内部关联键，对应user_account.id'`,
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`COMMENT ON COLUMN ec_favorite.ec_product_id IS '收藏商品内部关联键，对应ec_product.id；商品下架不删除关系'`,
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`COMMENT ON COLUMN ec_favorite.revision IS '正整数并发版本，首次为1，每次收藏状态变化递增，相同目标重试不递增'`,
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})
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}
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