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29 lines
1.3 KiB
SQL
29 lines
1.3 KiB
SQL
-- 添加used_space字段
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ALTER TABLE cks ADD COLUMN IF NOT EXISTS used_space BIGINT DEFAULT 0;
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-- 更新现有数据，将字符串类型的容量字段转换为bigint
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-- 注意：这里需要根据实际情况调整转换逻辑
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UPDATE cks SET
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used_space = CASE
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WHEN used_space_text IS NOT NULL AND used_space_text != '' THEN
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CASE
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WHEN used_space_text LIKE '%GB%' THEN
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CAST(REPLACE(REPLACE(used_space_text, 'GB', ''), ' ', '') AS BIGINT) * 1024 * 1024 * 1024
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WHEN used_space_text LIKE '%MB%' THEN
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CAST(REPLACE(REPLACE(used_space_text, 'MB', ''), ' ', '') AS BIGINT) * 1024 * 1024
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WHEN used_space_text LIKE '%KB%' THEN
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CAST(REPLACE(REPLACE(used_space_text, 'KB', ''), ' ', '') AS BIGINT) * 1024
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ELSE 0
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END
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ELSE 0
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END
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WHERE used_space_text IS NOT NULL;
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-- 删除旧的字符串类型字段（可选，建议先备份数据）
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-- ALTER TABLE cks DROP COLUMN IF EXISTS capacity;
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-- ALTER TABLE cks DROP COLUMN IF EXISTS used_space_text;
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-- ALTER TABLE cks DROP COLUMN IF EXISTS total_space_text;
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-- 添加索引以提高查询性能
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CREATE INDEX IF NOT EXISTS idx_cks_used_space ON cks(used_space);
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CREATE INDEX IF NOT EXISTS idx_cks_space_left_space ON cks(space, left_space); |