-- Telemetry event log (append-only)
-- High-volume table for client-side event collection
CREATE TABLE IF NOT EXISTS telemetry_events (
    id BIGSERIAL PRIMARY KEY,
    user_id UUID REFERENCES users(id) ON DELETE SET NULL,
    install_id VARCHAR(128) NOT NULL,
    event_name VARCHAR(64) NOT NULL,
    event_time TIMESTAMPTZ NOT NULL,
    properties JSONB DEFAULT '{}',
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_telemetry_events_time ON telemetry_events(event_time);
CREATE INDEX idx_telemetry_events_name_time ON telemetry_events(event_name, event_time);
CREATE INDEX idx_telemetry_events_user ON telemetry_events(user_id);
CREATE INDEX idx_telemetry_events_install ON telemetry_events(install_id);