integration_suite_in.json

[
  {
    "name": "TestPushLimitDownIndexLookUpReader",
    "cases": [
      // Limit should be pushed down into IndexLookUpReader, row count of IndexLookUpReader and TableScan should be 1.00.
      "explain select * from tbl use index(idx_b_c) where b > 1 limit 2,1",
      // Projection atop IndexLookUpReader, Limit should be pushed down into IndexLookUpReader, and Projection should have row count 1.00 as well.
      "explain select * from tbl use index(idx_b_c) where b > 1 order by b desc limit 2,1",
      // Limit should be pushed down into IndexLookUpReader when Selection on top of IndexScan.
      "explain select * from tbl use index(idx_b_c) where b > 1 and c > 1 limit 2,1",
      // Limit should NOT be pushed down into IndexLookUpReader when Selection on top of TableScan.
      "explain select * from tbl use index(idx_b_c) where b > 1 and a > 1 limit 2,1"
    ]
  },
  {
    "name": "TestIsFromUnixtimeNullRejective",
    "cases": [
      // fix #12385
      "explain select * from t t1 left join t t2 on t1.a=t2.a where from_unixtime(t2.b);"
    ]
  },
  {
    "name": "TestSimplifyOuterJoinWithCast",
    "cases": [
      // LeftOuterJoin should no be simplified to InnerJoin.
      "explain select * from t t1 left join t t2 on t1.a = t2.a where cast(t1.b as date) >= '2019-01-01'"
    ]
  },
  {
    "name": "TestMaxMinEliminate",
    "cases": [
      "explain (select max(a) from t) union (select min(a) from t)"
    ]
  },
  {
    "name": "TestIndexJoinUniqueCompositeIndex",
    "cases": [
      // Row count of IndexScan should be 2.
      "explain select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c = t2.c",
      // Row count of IndexScan should be 2.
	  "explain select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c <= t2.b",
      // Row count of IndexScan should be 1.
	  "explain select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t2.b = 1"
    ]
  },
  {
    "name": "TestPartitionTableStats",
    "cases": [
      "explain select * from t order by a",
      "select * from t order by a",
      "explain select * from t order by a limit 3",
      "select * from t order by a limit 3"
    ]
  },
  {
    "name": "TestIndexMerge",
    "cases": [
      "explain select /*+ USE_INDEX_MERGE(t, a, b) */ * from t where a = 1 or b = 2"
    ]
  },
  {
    "name": "TestSubqueryWithTopN",
    "cases": [
      "desc select t1.b from t t1 where t1.b in (select t2.a from t t2 order by t1.a+t2.a limit 1)"
    ]
  },
  {
    "name": "TestIndexJoinTableRange",
    "cases": [
      "desc select /*+ TIDB_INLJ(t2)*/ * from t1, t2 where t1.a = t2.a and t1.b = t2.b",
      "desc select /*+ TIDB_INLJ(t2)*/ * from t1, t2 where t1.a = t2.a and t1.b = t2.a and t1.b = t2.b"
    ]
  },
  {
    "name": "TestIndexHintWarning",
    "cases": [
      "select /*+ USE_INDEX(t1, j) */ * from t1",
      "select /*+ IGNORE_INDEX(t1, j) */ * from t1",
      "select /*+ USE_INDEX(t2, a, b, c) */ * from t1",
      "select /*+ USE_INDEX(t2) */ * from t1",
      "select /*+ USE_INDEX(t1, a), USE_INDEX(t2, a), USE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
      "select /*+ USE_INDEX(t3, a), USE_INDEX(t4, b), IGNORE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
      "select /*+ USE_INDEX_MERGE(t3, a, b, d) */ * from t1",
      "select /*+ USE_INDEX_MERGE(t1, a, b, c, d) */ * from t1",
      "select /*+ USE_INDEX_MERGE(t1, a, b), USE_INDEX(t1, a) */ * from t1",
      "select /*+ USE_INDEX_MERGE(t1, a, b), IGNORE_INDEX(t1, a) */ * from t1",
      "select /*+ USE_INDEX_MERGE(t1, primary, a, b, c) */ * from t1"
    ]
  },
  {
    "name": "TestHintWithoutTableWarning",
    "cases": [
      "select /*+ TIDB_SMJ() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ INL_JOIN() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ TIDB_INLJ() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ INL_HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ INL_MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ USE_INDEX() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ IGNORE_INDEX() */ * from t1, t2 where t1.a=t2.a",
      "select /*+ USE_INDEX_MERGE() */ * from t1, t2 where t1.a=t2.a"
    ]
  }
]