优化
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23
db/rollback_normaltemperature_split_columns.sql
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23
db/rollback_normaltemperature_split_columns.sql
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-- =====================================================
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-- 数据库回滚脚本:normaltemperature表移除联络单号和件号字段
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-- 创建时间:2026-02-04
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-- 说明:如果升级出现问题,使用此脚本回滚
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-- =====================================================
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USE fullautowaterpressure;
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-- 1. 删除索引
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DROP INDEX IF EXISTS `idx_contact_number` ON `normaltemperature`;
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DROP INDEX IF EXISTS `idx_item_number` ON `normaltemperature`;
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-- 2. 删除新增字段
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ALTER TABLE `normaltemperature`
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DROP COLUMN IF EXISTS `ContactNumber`,
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DROP COLUMN IF EXISTS `ItemNumber`;
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-- 3. 验证回滚
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DESCRIBE normaltemperature;
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-- =====================================================
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-- 回滚完成
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-- =====================================================
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