zetaloop
12 lines
613 B
SQL
12 lines
613 B
SQL
CREATE TABLE user_follows (
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id BIGINT PRIMARY KEY,
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follower_id BIGINT NOT NULL REFERENCES users(id),
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followee_id BIGINT NOT NULL REFERENCES users(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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UNIQUE(follower_id, followee_id),
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CONSTRAINT chk_no_self_follow CHECK (follower_id != followee_id)
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);
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CREATE INDEX idx_follows_follower ON user_follows(follower_id);
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CREATE INDEX idx_follows_followee ON user_follows(followee_id); |