35 lines
1.4 KiB
PL/PgSQL
35 lines
1.4 KiB
PL/PgSQL
-- ============================================
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-- 迁移: 011_add_notifications.sql
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-- 目的: 创建统一通知表，覆盖系统公告/个人通知/事件通知
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-- 日期: 2026-05-26
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-- ============================================
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BEGIN;
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CREATE TABLE IF NOT EXISTS notifications (
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id SERIAL PRIMARY KEY,
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scope VARCHAR(16) NOT NULL DEFAULT 'user',
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user_id INTEGER REFERENCES users(id) ON DELETE CASCADE,
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type VARCHAR(32) NOT NULL,
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title VARCHAR(255) NOT NULL,
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content TEXT,
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priority VARCHAR(16) NOT NULL DEFAULT 'normal',
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link VARCHAR(512),
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is_read BOOLEAN NOT NULL DEFAULT false,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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expires_at TIMESTAMPTZ
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);
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CREATE INDEX IF NOT EXISTS idx_notifications_user
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ON notifications(scope, user_id, created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_notifications_all
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ON notifications(scope, created_at DESC) WHERE scope = 'all';
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CREATE INDEX IF NOT EXISTS idx_notifications_expires
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ON notifications(expires_at) WHERE expires_at IS NOT NULL;
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COMMENT ON TABLE notifications IS '统一通知表：scope=all 系统广播，scope=user 定向通知';
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COMMENT ON COLUMN notifications.scope IS '作用域: all(广播) / user(定向)';
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COMMENT ON COLUMN notifications.type IS '通知类型: system_maintenance / member_expiry / payment_success / version_update';
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COMMIT;
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