[
  {
    "Name": "TestPlanGeneration",
    "Cases": [
      {
        "SQL": "explain explore select max(b) from t where a=1",
        "Plan": [
          [
            "StreamAgg  1.00  root    funcs:max(test.t.b)->Column#5",
            "└─TopN  1.00  root    test.t.b:desc, offset:0, count:1",
            "  └─TableReader  1.00  root    data:TopN",
            "    └─TopN  1.00  cop[tikv]    test.t.b:desc, offset:0, count:1",
            "      └─Selection  9.99  cop[tikv]    eq(test.t.a, 1), not(isnull(test.t.b))",
            "        └─TableFullScan  10000.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ],
          [
            "StreamAgg  1.00  root    funcs:max(test.t.b)->Column#5",
            "└─TopN  1.00  root    test.t.b:desc, offset:0, count:1",
            "  └─IndexLookUp  1.00  root    ",
            "    ├─IndexRangeScan(Build)  10.00  cop[tikv]  table:t, index:a(a)  range:[1,1], keep order:false, stats:pseudo",
            "    └─TopN(Probe)  1.00  cop[tikv]    test.t.b:desc, offset:0, count:1",
            "      └─Selection  9.99  cop[tikv]    not(isnull(test.t.b))",
            "        └─TableRowIDScan  10.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ],
          [
            "HashAgg  1.00  root    funcs:max(test.t.b)->Column#5",
            "└─TopN  1.00  root    test.t.b:desc, offset:0, count:1",
            "  └─TableReader  1.00  root    data:TopN",
            "    └─TopN  1.00  cop[tikv]    test.t.b:desc, offset:0, count:1",
            "      └─Selection  9.99  cop[tikv]    eq(test.t.a, 1), not(isnull(test.t.b))",
            "        └─TableFullScan  10000.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ],
          [
            "HashAgg  1.00  root    funcs:max(test.t.b)->Column#5",
            "└─TopN  1.00  root    test.t.b:desc, offset:0, count:1",
            "  └─IndexLookUp  1.00  root    ",
            "    ├─IndexRangeScan(Build)  10.00  cop[tikv]  table:t, index:a(a)  range:[1,1], keep order:false, stats:pseudo",
            "    └─TopN(Probe)  1.00  cop[tikv]    test.t.b:desc, offset:0, count:1",
            "      └─Selection  9.99  cop[tikv]    not(isnull(test.t.b))",
            "        └─TableRowIDScan  10.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ]
        ]
      },
      {
        "SQL": "explain explore select * from t where a=1",
        "Plan": [
          [
            "TableReader  10.00  root    data:Selection",
            "└─Selection  10.00  cop[tikv]    eq(test.t.a, 1)",
            "  └─TableFullScan  10000.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ],
          [
            "IndexLookUp  10.00  root    ",
            "├─IndexRangeScan(Build)  10.00  cop[tikv]  table:t, index:a(a)  range:[1,1], keep order:false, stats:pseudo",
            "└─TableRowIDScan(Probe)  10.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ]
        ]
      },
      {
        "SQL": "explain explore select * from t where b=1",
        "Plan": [
          [
            "TableReader  10.00  root    data:Selection",
            "└─Selection  10.00  cop[tikv]    eq(test.t.b, 1)",
            "  └─TableFullScan  10000.00  cop[tikv]  table:t  keep order:false, stats:pseudo"
          ]
        ]
      },
      {
        "SQL": "explain explore select * from t1, t2, t3",
        "Plan": [
          [
            "HashJoin  1000000000000.00  root    CARTESIAN inner join",
            "├─HashJoin(Probe)  100000000.00  root    CARTESIAN inner join",
            "│ ├─TableReader(Probe)  10000.00  root    data:TableFullScan",
            "│ │ └─TableFullScan  10000.00  cop[tikv]  table:t1  keep order:false, stats:pseudo",
            "│ └─TableReader(Build)  10000.00  root    data:TableFullScan",
            "│   └─TableFullScan  10000.00  cop[tikv]  table:t2  keep order:false, stats:pseudo",
            "└─TableReader(Build)  10000.00  root    data:TableFullScan",
            "  └─TableFullScan  10000.00  cop[tikv]  table:t3  keep order:false, stats:pseudo"
          ]
        ]
      },
      {
        "SQL": "explain explore select * from t1, t2 where t1.a=t2.a",
        "Plan": [
          [
            "MergeJoin  12487.50  root    inner join, left key:test.t1.a, right key:test.t2.a",
            "├─Projection(Probe)  9990.00  root    test.t1.a, test.t1.b, test.t1.c",
            "│ └─IndexLookUp  9990.00  root    ",
            "│   ├─IndexFullScan(Build)  9990.00  cop[tikv]  table:t1, index:a(a)  keep order:true, stats:pseudo",
            "│   └─TableRowIDScan(Probe)  9990.00  cop[tikv]  table:t1  keep order:false, stats:pseudo",
            "└─Projection(Build)  9990.00  root    test.t2.a, test.t2.b, test.t2.c",
            "  └─IndexLookUp  9990.00  root    ",
            "    ├─IndexFullScan(Build)  9990.00  cop[tikv]  table:t2, index:a(a)  keep order:true, stats:pseudo",
            "    └─TableRowIDScan(Probe)  9990.00  cop[tikv]  table:t2  keep order:false, stats:pseudo"
          ],
          [
            "IndexHashJoin  12487.50  root    inner join, inner:IndexLookUp, outer key:test.t1.a, inner key:test.t2.a, equal cond:eq(test.t1.a, test.t2.a)",
            "├─TableReader(Build)  9990.00  root    data:Selection",
            "│ └─Selection  9990.00  cop[tikv]    not(isnull(test.t1.a))",
            "│   └─TableFullScan  10000.00  cop[tikv]  table:t1  keep order:false, stats:pseudo",
            "└─IndexLookUp(Probe)  12487.50  root    ",
            "  ├─Selection(Build)  12487.50  cop[tikv]    not(isnull(test.t2.a))",
            "  │ └─IndexRangeScan  12500.00  cop[tikv]  table:t2, index:a(a)  range: decided by [eq(test.t2.a, test.t1.a)], keep order:false, stats:pseudo",
            "  └─TableRowIDScan(Probe)  12487.50  cop[tikv]  table:t2  keep order:false, stats:pseudo"
          ],
          [
            "HashJoin  12487.50  root    inner join, equal:[eq(test.t1.a, test.t2.a)]",
            "├─TableReader(Probe)  9990.00  root    data:Selection",
            "│ └─Selection  9990.00  cop[tikv]    not(isnull(test.t1.a))",
            "│   └─TableFullScan  10000.00  cop[tikv]  table:t1  keep order:false, stats:pseudo",
            "└─TableReader(Build)  9990.00  root    data:Selection",
            "  └─Selection  9990.00  cop[tikv]    not(isnull(test.t2.a))",
            "    └─TableFullScan  10000.00  cop[tikv]  table:t2  keep order:false, stats:pseudo"
          ],
          [
            "IndexHashJoin  12487.50  root    inner join, inner:IndexLookUp, outer key:test.t1.a, inner key:test.t2.a, equal cond:eq(test.t1.a, test.t2.a)",
            "├─IndexLookUp(Build)  9990.00  root    ",
            "│ ├─IndexFullScan(Build)  9990.00  cop[tikv]  table:t1, index:a(a)  keep order:false, stats:pseudo",
            "│ └─TableRowIDScan(Probe)  9990.00  cop[tikv]  table:t1  keep order:false, stats:pseudo",
            "└─IndexLookUp(Probe)  12487.50  root    ",
            "  ├─Selection(Build)  12487.50  cop[tikv]    not(isnull(test.t2.a))",
            "  │ └─IndexRangeScan  12500.00  cop[tikv]  table:t2, index:a(a)  range: decided by [eq(test.t2.a, test.t1.a)], keep order:false, stats:pseudo",
            "  └─TableRowIDScan(Probe)  12487.50  cop[tikv]  table:t2  keep order:false, stats:pseudo"
          ]
        ]
      }
    ]
  },
  {
    "Name": "TestRelevantOptVarsAndFixes",
    "Cases": [
      {
        "Vars": "[tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_table_full_scan_cost_factor tidb_opt_table_reader_cost_factor]",
        "Fixes": "[45132]"
      },
      {
        "Vars": "[tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_table_rowid_scan_cost_factor]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_table_full_scan_cost_factor tidb_opt_table_reader_cost_factor tidb_opt_table_rowid_scan_cost_factor]",
        "Fixes": "[45132 52869]"
      },
      {
        "Vars": "[tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_table_rowid_scan_cost_factor]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_hash_agg_cost_factor tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_ordering_index_selectivity_ratio tidb_opt_prefer_range_scan tidb_opt_stream_agg_cost_factor tidb_opt_topn_cost_factor]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_hash_agg_cost_factor tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_stream_agg_cost_factor tidb_opt_table_rowid_scan_cost_factor]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_sort_cost_factor tidb_opt_table_rowid_scan_cost_factor]",
        "Fixes": "[45132 52869]"
      },
      {
        "Vars": "[tidb_opt_index_lookup_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_prefer_range_scan tidb_opt_table_range_scan_cost_factor tidb_opt_table_rowid_scan_cost_factor tidb_opt_topn_cost_factor]",
        "Fixes": "[52869]"
      },
      {
        "Vars": "[tidb_opt_hash_join_cost_factor tidb_opt_index_join_cost_factor tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_merge_join_cost_factor tidb_opt_ordering_index_selectivity_ratio tidb_opt_prefer_range_scan]",
        "Fixes": "[44855 45132 52869]"
      },
      {
        "Vars": "[tidb_opt_hash_join_cost_factor tidb_opt_index_join_cost_factor tidb_opt_index_reader_cost_factor tidb_opt_index_scan_cost_factor tidb_opt_merge_join_cost_factor tidb_opt_ordering_index_selectivity_ratio tidb_opt_prefer_range_scan]",
        "Fixes": "[44855 45132 52869]"
      },
      {
        "Vars": "[tidb_opt_hash_join_cost_factor tidb_opt_ordering_index_selectivity_ratio tidb_opt_prefer_range_scan tidb_opt_table_full_scan_cost_factor tidb_opt_table_reader_cost_factor]",
        "Fixes": "[52869]"
      }
    ]
  }
]