text: drop table if exists t1;
  drop table if exists t2;
  create table t1 (a Int8, val Float32) engine=Memory();
  create table t2 (a Int8, val Float32) engine=Memory();
  
  INSERT INTO t1 VALUES (1, 123);
  INSERT INTO t2 VALUES (1, 456);
  
  
  select t1.a, t2.a from t1 all inner join t2 on t1.a=t2.a;
  -- Received exception from server (version 18.14.1):
  -- Code: 47. DB::Exception: Received from localhost:9000, 127.0.0.1. DB::Exception: Unknown identifier: t2.a.
  
  -- this query works fine
  select t1.a, t2.* from t1 all inner join t2 on t1.a=t2.a;
  
  -- and this
  select t1.a, t2.val from t1 all inner join t2 on t1.a=t2.a;
  
  DROP TABLE t1;
  DROP TABLE t2;
  