clickhouse-migrate-test-support-0.1.0.0: test/fixtures/kansoku/steps/0018_conservative_identity_resolution/statement-27.sql
CREATE MATERIALIZED VIEW analytics.mv_identity_signal_users TO analytics.identity_signal_users AS SELECT account_id, signal_kind, signal_value, user_id, max(observed_at) AS observed_at FROM analytics.identity_signals GROUP BY account_id, signal_kind, signal_value, user_id;