52 lines
1.3 KiB
SQL
52 lines
1.3 KiB
SQL
CREATE TABLE IF NOT EXISTS guest_messages (
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id SERIAL PRIMARY KEY,
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guest_id VARCHAR(255) NOT NULL,
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content TEXT NOT NULL,
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language VARCHAR(10) DEFAULT 'en',
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is_ai BOOLEAN DEFAULT false,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
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);
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_indexes
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WHERE tablename = 'guest_messages' AND indexname = 'idx_guest_messages_guest_id'
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) THEN
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CREATE INDEX idx_guest_messages_guest_id ON guest_messages(guest_id);
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END IF;
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END $$;
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name = 'messages' AND column_name = 'guest_message_id'
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) THEN
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ALTER TABLE messages ADD COLUMN guest_message_id INTEGER;
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END IF;
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END $$;
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint
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WHERE conname = 'fk_messages_guest_message'
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) THEN
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ALTER TABLE messages
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ADD CONSTRAINT fk_messages_guest_message
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FOREIGN KEY (guest_message_id)
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REFERENCES guest_messages(id)
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ON DELETE SET NULL;
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END IF;
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END $$;
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_indexes
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WHERE tablename = 'messages' AND indexname = 'idx_messages_guest_message_id'
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) THEN
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CREATE INDEX idx_messages_guest_message_id ON messages(guest_message_id);
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END IF;
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END $$; |