likwid/backend/migrations/20260125183611_comments.sql

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-- Comments table for proposal discussions
CREATE TABLE comments (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
proposal_id UUID NOT NULL REFERENCES proposals(id) ON DELETE CASCADE,
author_id UUID NOT NULL REFERENCES users(id),
content TEXT NOT NULL,
parent_id UUID REFERENCES comments(id) ON DELETE CASCADE,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE INDEX idx_comments_proposal ON comments(proposal_id);
CREATE INDEX idx_comments_parent ON comments(parent_id);
CREATE TRIGGER comments_updated_at BEFORE UPDATE ON comments
FOR EACH ROW EXECUTE FUNCTION update_updated_at();