ALTER TABLE venues
ADD COLUMN IF NOT EXISTS is_verified BOOLEAN NOT NULL DEFAULT FALSE;

CREATE TABLE IF NOT EXISTS venue_aliases (
    id SERIAL PRIMARY KEY,
    venue_id INTEGER NOT NULL REFERENCES venues(id) ON DELETE CASCADE,
    alias VARCHAR(255) NOT NULL,
    UNIQUE (venue_id, alias)
);

CREATE INDEX IF NOT EXISTS idx_venue_aliases_alias
    ON venue_aliases (LOWER(alias));