[
  {
    "name": "TestGroupStringer",
    "cases": [
      // Simple query.
      "select b from t where a > 1 and b < 1",
      // TableDual.
      "select 3 * 10 + 1",
      // Join.
      "select t1.b from t t1, t t2 where t2.a=t1.b and t1.a > 10",
      // Aggregation.
      "select max(b), sum(a) from t where c > 10 group by d",
      // Aggregation without group by.
      "select avg(b) from t where b > 10",
      // Subquery.
      "select a from t t1 where exists(select 1 from t t2 where t2.a < t1.b) and a < 5",
      // Join + Agg.
      "select sum(t1.a) from t t1, t t2 where t1.a = t2.b",
      // Limit.
      "select a from t where a > 10 limit 3",
      // Order by.
      "select a from t where b > 1 order by c",
      // Union ALL.
      "select avg(a) from t union all select avg(b) from t",
      // Apply.
      "select a = (select a from t t2 where t1.b = t2.b order by a limit 1) from t t1"
    ]
  }
]