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12 lines
634 B
SQL
12 lines
634 B
SQL
-- ============================================================
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-- 015: 生产环境缺陷修复
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-- ============================================================
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-- 问题2修复: knowledge_documents 表添加 content 列
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SET @col_exists = (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'aiflow' AND TABLE_NAME = 'knowledge_documents' AND COLUMN_NAME = 'content');
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SET @sql = IF(@col_exists = 0, 'ALTER TABLE knowledge_documents ADD COLUMN content LONGTEXT DEFAULT NULL AFTER error_message', 'SELECT ''content column already exists'' AS msg');
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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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