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xinghuoapi/backend/migrations/015_fix_settings_unique_constraint.sql
huangzhenpc f52498603c
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first commit
2026-01-15 20:29:55 +08:00

20 lines
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SQL

-- 015_fix_settings_unique_constraint.sql
-- 修复 settings 表 key 字段缺失的唯一约束
-- 此约束是 ON CONFLICT ("key") DO UPDATE 语句所必需的
-- 检查并添加唯一约束(如果不存在)
DO $$
BEGIN
-- 检查是否已存在唯一约束
IF NOT EXISTS (
SELECT 1 FROM pg_constraint
WHERE conrelid = 'settings'::regclass
AND contype = 'u'
AND conname = 'settings_key_key'
) THEN
-- 添加唯一约束
ALTER TABLE settings ADD CONSTRAINT settings_key_key UNIQUE (key);
END IF;
END
$$;