wuweihua
92 lines
3.4 KiB
SQL
92 lines
3.4 KiB
SQL
-- Rename product tables (drop bms_ prefix) and remove base price version
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SET NAMES utf8mb4;
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-- 1) Drop FK from country -> product if present
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SET @fk := (
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SELECT CONSTRAINT_NAME FROM information_schema.TABLE_CONSTRAINTS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'bms_product_country'
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AND CONSTRAINT_TYPE = 'FOREIGN KEY'
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AND CONSTRAINT_NAME = 'fk_product_country_pid'
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LIMIT 1
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);
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SET @sql := IF(@fk IS NULL, 'SELECT 1', CONCAT('ALTER TABLE bms_product_country DROP FOREIGN KEY ', @fk));
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- 2) Drop version index / column on country
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SET @idx := (
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SELECT INDEX_NAME FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'bms_product_country'
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AND INDEX_NAME = 'idx_product_country_ppv'
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LIMIT 1
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);
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SET @sql := IF(@idx IS NULL, 'SELECT 1', 'ALTER TABLE bms_product_country DROP INDEX idx_product_country_ppv');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SET @col := (
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SELECT COLUMN_NAME FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'bms_product_country'
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AND COLUMN_NAME = 'ppv_id'
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LIMIT 1
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);
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SET @sql := IF(@col IS NULL, 'SELECT 1', 'ALTER TABLE bms_product_country DROP COLUMN ppv_id');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- Also handle already-renamed country table
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SET @idx := (
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SELECT INDEX_NAME FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'product_country'
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AND INDEX_NAME = 'idx_product_country_ppv'
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LIMIT 1
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);
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SET @sql := IF(@idx IS NULL, 'SELECT 1', 'ALTER TABLE product_country DROP INDEX idx_product_country_ppv');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SET @col := (
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SELECT COLUMN_NAME FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'product_country'
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AND COLUMN_NAME = 'ppv_id'
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LIMIT 1
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);
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SET @sql := IF(@col IS NULL, 'SELECT 1', 'ALTER TABLE product_country DROP COLUMN ppv_id');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- 3) Drop version table
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DROP TABLE IF EXISTS bms_product_price_version;
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DROP TABLE IF EXISTS product_price_version;
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-- 4) Rename tables (skip if already renamed)
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SET @t := (
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SELECT TABLE_NAME FROM information_schema.TABLES
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'bms_product' LIMIT 1
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);
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SET @sql := IF(@t IS NULL, 'SELECT 1', 'RENAME TABLE bms_product TO product');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SET @t := (
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SELECT TABLE_NAME FROM information_schema.TABLES
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'bms_product_country' LIMIT 1
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);
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SET @sql := IF(@t IS NULL, 'SELECT 1', 'RENAME TABLE bms_product_country TO product_country');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- 5) Recreate FK product_country.product_id -> product.product_id
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SET @fk := (
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SELECT CONSTRAINT_NAME FROM information_schema.TABLE_CONSTRAINTS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'product_country'
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AND CONSTRAINT_TYPE = 'FOREIGN KEY'
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AND CONSTRAINT_NAME = 'fk_product_country_pid'
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LIMIT 1
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);
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SET @sql := IF(
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@fk IS NOT NULL,
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'SELECT 1',
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'ALTER TABLE product_country ADD CONSTRAINT fk_product_country_pid FOREIGN KEY (product_id) REFERENCES product (product_id) ON DELETE CASCADE'
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);
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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