SELECT COUNT(DISTINCT node_id) > 1 AS has_multi_datanodes FROM information_schema.ssts_manifest; SELECT COUNT(*) AS limited_rows FROM ( SELECT region_id FROM information_schema.ssts_manifest LIMIT 1 ); SELECT COUNT(*) AS filtered_limited_rows FROM ( SELECT region_id FROM information_schema.ssts_manifest WHERE region_id > 0 LIMIT 1 );