11 lines
586 B
MySQL
11 lines
586 B
MySQL
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-- Migration 110: Create delivered_status table (v0.502 CH1-01)
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CREATE TABLE IF NOT EXISTS delivered_status (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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message_id UUID NOT NULL REFERENCES messages(id) ON DELETE CASCADE,
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delivered_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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CONSTRAINT uq_delivered_status_user_message UNIQUE (user_id, message_id)
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);
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CREATE INDEX idx_delivered_status_message_id ON delivered_status(message_id);
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CREATE INDEX idx_delivered_status_user_id ON delivered_status(user_id);
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