text: -- minmax.test
  -- 
  -- execsql {
  --     CREATE TABLE t5(a INTEGER);
  --     INSERT INTO t5 VALUES('1234');
  --     INSERT INTO t5 VALUES('234');
  --     INSERT INTO t5 VALUES('34');
  --     SELECT min(a), max(a) FROM t5;
  -- }
  CREATE TABLE t5(a INTEGER);
  INSERT INTO t5 VALUES('1234');
  INSERT INTO t5 VALUES('234');
  INSERT INTO t5 VALUES('34');
  SELECT min(a), max(a) FROM t5;