[
  {
    "name": "TestNaturalJoin",
    "cases": [
      "select * from t1 natural join t2",
      "select * from t1 natural left join t2 order by a",
      "select * from t1 natural right join t2 order by a",
      "SELECT * FROM t1 NATURAL LEFT JOIN t2 WHERE not(t1.a <=> t2.a)"
    ]
  },
  {
    "name": "TestUsingAndNaturalJoinSchema",
    "cases": [
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) natural join (t3 natural join t4);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) join (t3 natural join t4) using (b);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) join (t3 natural join t4) using (c);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) join (t3 natural join t4) using (c,b);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) left outer join (t3 natural join t4) using (b);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) left outer join (t3 natural join t4) using (c);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) left outer join (t3 natural join t4) using (c,b);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) right outer join (t3 natural join t4) using (b);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) right outer join (t3 natural join t4) using (c);",
      "select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) right outer join (t3 natural join t4) using (c,b);",
      "select * from (t1  natural join t2) natural join (t3 natural  join t4);",
      "select * from (t1 natural join t2) join (t3 natural join t4) using (b);",
      "select * from (t1 natural join t2) left outer join (t3 natural join t4) using (b);",
      "select * from (t1 natural join t2) right outer join (t3 natural join t4) using (c,b);"
    ]
  },
  {
    "name": "TestIndexScanWithYearCol",
    "cases": [
      "select t1.c1, t2.c1 from t as t1 inner join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select * from t as t1 inner join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select count(*) from t as t1 inner join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select t1.c1, t2.c1 from t as t1 left join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select * from t as t1 left join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select count(*) from t as t1 left join t as t2 on t1.c1 = t2.c1 where t1.c1 != NULL",
      "select * from t as t1 left join t as t2 on t1.c1 = t2.c1 where t1.c1 is not NULL"
    ]
  }
]