SET intervalstyle = 'postgres'; CREATE SERVER binary_interval_loopback FOREIGN DATA WRAPPER clickhouse_fdw OPTIONS(dbname 'interval_test', driver 'binary'); CREATE SERVER http_interval_loopback FOREIGN DATA WRAPPER clickhouse_fdw OPTIONS(dbname 'interval_test', driver 'http'); CREATE USER MAPPING FOR CURRENT_USER SERVER binary_interval_loopback; CREATE USER MAPPING FOR CURRENT_USER SERVER http_interval_loopback; CREATE SERVER interval_admin FOREIGN DATA WRAPPER clickhouse_fdw; CREATE USER MAPPING FOR CURRENT_USER SERVER interval_admin; \set ECHO errors SKIP: Interval columns unsupported prior to ClickHouse 23.5