-- {echoOn} SELECT arrayExists(x -> (x IN (SELECT '2')), [2]) FROM system.one; SELECT arrayExists(x -> (x IN (SELECT '2')), [2]) FROM remote('127.0.0.{2,3}', system.one); SELECT arrayExists(x -> (x IN (SELECT '2')), [2]) FROM remote('127.0.0.{2,3}', system.one) GROUP BY NULL; SELECT arrayExists(x -> (x IN (SELECT '2')), [2]) FROM remote('127.0.0.{2,3}', system.one) GROUP BY 1; SELECT arrayExists(x -> (x IN (SELECT '2')), [2]) FROM remote('127.0.0.{2,3}', system.one) GROUP BY 'A'; SELECT 1 IN ( SELECT 1 ) FROM remote('127.0.0.{1,2}', system.one) GROUP BY dummy; SELECT 1000.0001, toUInt64(arrayJoin([NULL, 257, 65536, NULL])), arrayExists(x -> (x IN (SELECT '2.55')), [-9223372036854775808]) FROM remote('127.0.0.{1,2}', system.one) GROUP BY NULL, NULL, NULL, NULL;