42 lines
997 B
SQL
42 lines
997 B
SQL
-- Purpose: Rollback promo system tables and order promo snapshot columns
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SET @column_exists = (
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SELECT COUNT(*)
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'order'
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AND COLUMN_NAME = 'promo_discount'
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);
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SET @sql = IF(
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@column_exists = 1,
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'ALTER TABLE `order` DROP COLUMN `promo_discount`',
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'SELECT ''Column promo_discount does not exist in order table'''
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);
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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SET @column_exists = (
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SELECT COUNT(*)
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'order'
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AND COLUMN_NAME = 'promo_rule_id'
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);
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SET @sql = IF(
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@column_exists = 1,
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'ALTER TABLE `order` DROP COLUMN `promo_rule_id`',
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'SELECT ''Column promo_rule_id does not exist in order table'''
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);
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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DROP TABLE IF EXISTS `promo_usage`;
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DROP TABLE IF EXISTS `subscribe_promo`;
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DROP TABLE IF EXISTS `promo_rule`;
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