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tidb/planner/core/testdata/integration_suite_out.json

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[
{
"Name": "TestPushLimitDownIndexLookUpReader",
"Cases": [
{
"SQL": "explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 limit 2,1",
"Plan": [
"IndexLookUp 1.00 root limit embedded(offset:2, count:1)",
"├─Limit(Build) 3.00 cop[tikv] offset:0, count:3",
"│ └─IndexRangeScan 3.00 cop[tikv] table:tbl, index:idx_b_c(b, c) range:(1,+inf], keep order:false",
"└─TableRowIDScan(Probe) 1.00 cop[tikv] table:tbl keep order:false"
]
},
{
"SQL": "explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 order by b desc limit 2,1",
"Plan": [
"Limit 1.00 root offset:2, count:1",
"└─Projection 3.00 root test.tbl.a, test.tbl.b, test.tbl.c",
" └─IndexLookUp 3.00 root ",
" ├─Limit(Build) 3.00 cop[tikv] offset:0, count:3",
" │ └─IndexRangeScan 3.00 cop[tikv] table:tbl, index:idx_b_c(b, c) range:(1,+inf], keep order:true, desc",
" └─TableRowIDScan(Probe) 3.00 cop[tikv] table:tbl keep order:false"
]
},
{
"SQL": "explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 and c > 1 limit 2,1",
"Plan": [
"IndexLookUp 1.00 root limit embedded(offset:2, count:1)",
"├─Limit(Build) 3.00 cop[tikv] offset:0, count:3",
"│ └─Selection 3.00 cop[tikv] gt(test.tbl.c, 1)",
"│ └─IndexRangeScan 3.75 cop[tikv] table:tbl, index:idx_b_c(b, c) range:(1,+inf], keep order:false",
"└─TableRowIDScan(Probe) 1.00 cop[tikv] table:tbl keep order:false"
]
},
{
"SQL": "explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 and a > 1 limit 2,1",
"Plan": [
"Limit 1.00 root offset:2, count:1",
"└─IndexLookUp 3.00 root ",
" ├─IndexRangeScan(Build) 3.75 cop[tikv] table:tbl, index:idx_b_c(b, c) range:(1,+inf], keep order:false",
" └─Limit(Probe) 3.00 cop[tikv] offset:0, count:3",
" └─Selection 3.00 cop[tikv] gt(test.tbl.a, 1)",
" └─TableRowIDScan 3.75 cop[tikv] table:tbl keep order:false"
]
}
]
},
{
"Name": "TestIsFromUnixtimeNullRejective",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t t1 left join t t2 on t1.a=t2.a where from_unixtime(t2.b);",
"Plan": [
"Projection 9990.00 root test.t.a, test.t.b, test.t.a, test.t.b",
"└─HashJoin 9990.00 root inner join, equal:[eq(test.t.a, test.t.a)]",
" ├─Selection(Build) 7992.00 root from_unixtime(cast(test.t.b, decimal(20,0) BINARY))",
" │ └─TableReader 9990.00 root data:Selection",
" │ └─Selection 9990.00 cop[tikv] not(isnull(test.t.a))",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─TableReader(Probe) 9990.00 root data:Selection",
" └─Selection 9990.00 cop[tikv] not(isnull(test.t.a))",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestAggColumnPrune",
"Cases": [
{
"SQL": "select count(1) from t join (select count(1) from t where false) as tmp",
"Res": [
"2"
]
},
{
"SQL": "select count(1) from t join (select max(a) from t where false) as tmp",
"Res": [
"2"
]
},
{
"SQL": "select count(1) from t join (select min(a) from t where false) as tmp",
"Res": [
"2"
]
},
{
"SQL": "select count(1) from t join (select sum(a) from t where false) as tmp",
"Res": [
"2"
]
},
{
"SQL": "select count(1) from t join (select avg(a) from t where false) as tmp",
"Res": [
"2"
]
},
{
"SQL": "select count(1) from t join (select count(1) from t where false group by a) as tmp",
"Res": [
"0"
]
},
{
"SQL": "select count(1) from t join (select max(a) from t where false group by a) as tmp",
"Res": [
"0"
]
},
{
"SQL": "select count(1) from t join (select min(a) from t where false group by a) as tmp",
"Res": [
"0"
]
},
{
"SQL": "select count(1) from t join (select sum(a) from t where false group by a) as tmp",
"Res": [
"0"
]
},
{
"SQL": "select count(1) from t join (select avg(a) from t where false group by a) as tmp",
"Res": [
"0"
]
},
{
"SQL": "SELECT avg(2) FROM(SELECT min(c) FROM t JOIN(SELECT 1 c) d ORDER BY a) e",
"Res": [
"2.0000"
]
}
]
},
{
"Name": "TestIndexJoinInnerIndexNDV",
"Cases": [
{
"SQL": "explain format = 'brief' select /*+ inl_join(t2) */ * from t1, t2 where t1.a = t2.a and t1.b = t2.b and t1.c = t2.c",
"Plan": [
"IndexJoin 3.00 root inner join, inner:IndexLookUp, outer key:test.t1.c, inner key:test.t2.c, equal cond:eq(test.t1.a, test.t2.a), eq(test.t1.b, test.t2.b), eq(test.t1.c, test.t2.c)",
"├─TableReader(Build) 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─IndexLookUp(Probe) 1.00 root ",
" ├─IndexRangeScan(Build) 1.00 cop[tikv] table:t2, index:idx2(c) range: decided by [eq(test.t2.c, test.t1.c)], keep order:false",
" └─TableRowIDScan(Probe) 1.00 cop[tikv] table:t2 keep order:false"
]
}
]
},
{
"Name": "TestSimplifyOuterJoinWithCast",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t t1 left join t t2 on t1.a = t2.a where cast(t1.b as date) >= '2019-01-01'",
"Plan": [
"HashJoin 10000.00 root left outer join, equal:[eq(test.t.a, test.t.a)]",
"├─TableReader(Build) 8000.00 root data:Selection",
"│ └─Selection 8000.00 cop[tikv] ge(cast(test.t.b, date BINARY), 2019-01-01 00:00:00.000000)",
"│ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestMaxMinEliminate",
"Cases": [
{
"SQL": "explain format = 'brief' (select max(a) from t) union (select min(a) from t)",
"Plan": [
"HashAgg 2.00 root group by:Column#5, funcs:firstrow(Column#5)->Column#5",
"└─Union 2.00 root ",
" ├─StreamAgg 1.00 root funcs:max(test.t.a)->Column#2",
" │ └─Limit 1.00 root offset:0, count:1",
" │ └─TableReader 1.00 root data:Limit",
" │ └─Limit 1.00 cop[tikv] offset:0, count:1",
" │ └─TableFullScan 1.00 cop[tikv] table:t keep order:true, desc, stats:pseudo",
" └─StreamAgg 1.00 root funcs:min(test.t.a)->Column#4",
" └─Limit 1.00 root offset:0, count:1",
" └─TableReader 1.00 root data:Limit",
" └─Limit 1.00 cop[tikv] offset:0, count:1",
" └─TableFullScan 1.00 cop[tikv] table:t keep order:true, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select min(a), max(a) from cluster_index_t",
"Plan": [
"HashJoin 1.00 root CARTESIAN inner join",
"├─StreamAgg(Build) 1.00 root funcs:max(test.cluster_index_t.a)->Column#5",
"│ └─Limit 1.00 root offset:0, count:1",
"│ └─TableReader 1.00 root data:Limit",
"│ └─Limit 1.00 cop[tikv] offset:0, count:1",
"│ └─TableFullScan 1.00 cop[tikv] table:cluster_index_t keep order:true, desc, stats:pseudo",
"└─StreamAgg(Probe) 1.00 root funcs:min(test.cluster_index_t.a)->Column#4",
" └─Limit 1.00 root offset:0, count:1",
" └─TableReader 1.00 root data:Limit",
" └─Limit 1.00 cop[tikv] offset:0, count:1",
" └─TableFullScan 1.00 cop[tikv] table:cluster_index_t keep order:true, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select min(b), max(b) from cluster_index_t where a = 1",
"Plan": [
"HashJoin 1.00 root CARTESIAN inner join",
"├─StreamAgg(Build) 1.00 root funcs:max(test.cluster_index_t.b)->Column#5",
"│ └─Limit 1.00 root offset:0, count:1",
"│ └─TableReader 1.00 root data:Limit",
"│ └─Limit 1.00 cop[tikv] offset:0, count:1",
"│ └─TableRangeScan 1.00 cop[tikv] table:cluster_index_t range:[1,1], keep order:true, desc, stats:pseudo",
"└─StreamAgg(Probe) 1.00 root funcs:min(test.cluster_index_t.b)->Column#4",
" └─Limit 1.00 root offset:0, count:1",
" └─TableReader 1.00 root data:Limit",
" └─Limit 1.00 cop[tikv] offset:0, count:1",
" └─TableRangeScan 1.00 cop[tikv] table:cluster_index_t range:[1,1], keep order:true, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select min(a), max(a) from cluster_index_t where b = 1",
"Plan": [
"StreamAgg 1.00 root funcs:min(Column#8)->Column#4, funcs:max(Column#9)->Column#5",
"└─TableReader 1.00 root data:StreamAgg",
" └─StreamAgg 1.00 cop[tikv] funcs:min(test.cluster_index_t.a)->Column#8, funcs:max(test.cluster_index_t.a)->Column#9",
" └─Selection 10.00 cop[tikv] eq(test.cluster_index_t.b, 1)",
" └─TableFullScan 10000.00 cop[tikv] table:cluster_index_t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select min(b), max(b) from cluster_index_t where b = 1",
"Plan": [
"StreamAgg 1.00 root funcs:min(Column#8)->Column#4, funcs:max(Column#9)->Column#5",
"└─TableReader 1.00 root data:StreamAgg",
" └─StreamAgg 1.00 cop[tikv] funcs:min(test.cluster_index_t.b)->Column#8, funcs:max(test.cluster_index_t.b)->Column#9",
" └─Selection 10.00 cop[tikv] eq(test.cluster_index_t.b, 1)",
" └─TableFullScan 10000.00 cop[tikv] table:cluster_index_t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIndexJoinUniqueCompositeIndex",
"Cases": [
{
"SQL": "explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c = t2.c",
"Plan": [
"IndexJoin 2.00 root inner join, inner:IndexLookUp, outer key:test.t1.a, inner key:test.t2.a, equal cond:eq(test.t1.a, test.t2.a), eq(test.t1.c, test.t2.c)",
"├─TableReader(Build) 1.00 root data:TableFullScan",
"│ └─TableFullScan 1.00 cop[tikv] table:t1 keep order:false",
"└─IndexLookUp(Probe) 2.00 root ",
" ├─IndexRangeScan(Build) 2.00 cop[tikv] table:t2, index:PRIMARY(a, b) range: decided by [eq(test.t2.a, test.t1.a)], keep order:false",
" └─TableRowIDScan(Probe) 2.00 cop[tikv] table:t2 keep order:false"
]
},
{
"SQL": "explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c <= t2.b",
"Plan": [
"IndexJoin 2.00 root inner join, inner:IndexLookUp, outer key:test.t1.a, inner key:test.t2.a, equal cond:eq(test.t1.a, test.t2.a), other cond:le(test.t1.c, test.t2.b)",
"├─TableReader(Build) 1.00 root data:TableFullScan",
"│ └─TableFullScan 1.00 cop[tikv] table:t1 keep order:false",
"└─IndexLookUp(Probe) 2.00 root ",
" ├─IndexRangeScan(Build) 2.00 cop[tikv] table:t2, index:PRIMARY(a, b) range: decided by [eq(test.t2.a, test.t1.a) le(test.t1.c, test.t2.b)], keep order:false",
" └─TableRowIDScan(Probe) 2.00 cop[tikv] table:t2 keep order:false"
]
},
{
"SQL": "explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t2.b = 1",
"Plan": [
"IndexJoin 1.00 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) 1.00 root data:TableFullScan",
"│ └─TableFullScan 1.00 cop[tikv] table:t1 keep order:false",
"└─IndexLookUp(Probe) 1.00 root ",
" ├─IndexRangeScan(Build) 1.00 cop[tikv] table:t2, index:PRIMARY(a, b) range: decided by [eq(test.t2.a, test.t1.a) eq(test.t2.b, 1)], keep order:false",
" └─TableRowIDScan(Probe) 1.00 cop[tikv] table:t2 keep order:false"
]
}
]
},
{
"Name": "TestPartitionTableStats",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t order by a",
"Result": [
"Sort 10005.00 root test.t.a",
"└─PartitionUnion 10005.00 root ",
" ├─TableReader 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
" ├─TableReader 1.00 root data:TableFullScan",
" │ └─TableFullScan 1.00 cop[tikv] table:t, partition:p1 keep order:false",
" └─TableReader 4.00 root data:TableFullScan",
" └─TableFullScan 4.00 cop[tikv] table:t, partition:p2 keep order:false"
]
},
{
"SQL": "select * from t order by a",
"Result": [
"15 5",
"21 1",
"22 2",
"23 3",
"24 4"
]
},
{
"SQL": "explain format = 'brief' select * from t order by a limit 3",
"Result": [
"TopN 3.00 root test.t.a, offset:0, count:3",
"└─PartitionUnion 7.00 root ",
" ├─TopN 3.00 root test.t.a, offset:0, count:3",
" │ └─TableReader 3.00 root data:TopN",
" │ └─TopN 3.00 cop[tikv] test.t.a, offset:0, count:3",
" │ └─TableFullScan 10000.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
" ├─TopN 1.00 root test.t.a, offset:0, count:3",
" │ └─TableReader 1.00 root data:TableFullScan",
" │ └─TableFullScan 1.00 cop[tikv] table:t, partition:p1 keep order:false",
" └─TopN 3.00 root test.t.a, offset:0, count:3",
" └─TableReader 3.00 root data:TopN",
" └─TopN 3.00 cop[tikv] test.t.a, offset:0, count:3",
" └─TableFullScan 4.00 cop[tikv] table:t, partition:p2 keep order:false"
]
},
{
"SQL": "select * from t order by a limit 3",
"Result": [
"15 5",
"21 1",
"22 2"
]
}
]
},
{
"Name": "TestIndexMerge",
"Cases": [
{
"SQL": "explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, b) */ * from t where a = 1 or b = 2",
"Plan": [
"IndexMerge 2.00 root ",
"├─IndexRangeScan(Build) 1.00 cop[tikv] table:t, index:a(a) range:[1,1], keep order:false, stats:pseudo",
"├─IndexRangeScan(Build) 1.00 cop[tikv] table:t, index:b(b) range:[2,2], keep order:false, stats:pseudo",
"└─TableRowIDScan(Probe) 2.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select /*+ USE_INDEX_MERGE(t, primary) */ * from t where 1 or t.c",
"Plan": [
"TableReader 10000.00 root data:TableFullScan",
"└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, b, c) */ * from t where 1 or t.a = 1 or t.b = 2",
"Plan": [
"TableReader 10000.00 root data:Selection",
"└─Selection 10000.00 cop[tikv] or(1, or(eq(test.t.a, 1), eq(test.t.b, 2)))",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIndexMergeHint4CNF",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t where b = 1 and (a = 1 or c = 1)",
"Plan": [
"IndexLookUp 0.02 root ",
"├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, index:b(b) range:[1,1], keep order:false, stats:pseudo",
"└─Selection(Probe) 0.02 cop[tikv] or(eq(test.t.a, 1), eq(test.t.c, 1))",
" └─TableRowIDScan 10.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, c) */ * from t where b = 1 and (a = 1 or c = 1)",
"Plan": [
"IndexMerge 0.02 root ",
"├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, index:a(a) range:[1,1], keep order:false, stats:pseudo",
"├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, index:c(c) range:[1,1], keep order:false, stats:pseudo",
"└─Selection(Probe) 0.02 cop[tikv] eq(test.t.b, 1)",
" └─TableRowIDScan 19.99 cop[tikv] table:t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestSubqueryWithTopN",
"Cases": [
{
"SQL": "desc format = 'brief' select t1.b from t t1 where t1.b in (select t2.a from t t2 order by t1.a+t2.a limit 1)",
"Plan": [
"Projection 9990.00 root test.t.b",
"└─Apply 9990.00 root semi join, equal:[eq(test.t.b, test.t.a)]",
" ├─TableReader(Build) 9990.00 root data:Selection",
" │ └─Selection 9990.00 cop[tikv] not(isnull(test.t.b))",
" │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" └─Selection(Probe) 0.80 root not(isnull(test.t.a))",
" └─Projection 1.00 root test.t.a",
" └─TopN 1.00 root Column#7, offset:0, count:1",
" └─Projection 1.00 root test.t.a, plus(test.t.a, test.t.a)->Column#7",
" └─TableReader 1.00 root data:TopN",
" └─TopN 1.00 cop[tikv] plus(test.t.a, test.t.a), offset:0, count:1",
" └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
},
{
"SQL": "desc format = 'brief' select t1.a from t t1 order by (t1.b = 1 and exists (select 1 from t t2 where t1.b = t2.b)) limit 1",
"Plan": [
"Projection 1.00 root test.t.a",
"└─Projection 1.00 root test.t.a, test.t.b, Column#11",
" └─TopN 1.00 root Column#13, offset:0, count:1",
" └─Projection 10000.00 root test.t.a, test.t.b, Column#11, and(eq(test.t.b, 1), Column#11)->Column#13",
" └─HashJoin 10000.00 root left outer semi join, equal:[eq(test.t.b, test.t.b)]",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
]
},
{
"SQL": "desc format = 'brief' select * from (select b+b as x from t) t1, t t2 where t1.x=t2.b order by t1.x limit 1",
"Plan": [
"TopN 1.00 root Column#4, offset:0, count:1",
"└─Projection 10000.00 root Column#4, test.t.a, test.t.b",
" └─HashJoin 10000.00 root inner join, equal:[eq(test.t.b, Column#4)]",
" ├─Projection(Build) 8000.00 root plus(test.t.b, test.t.b)->Column#4",
" │ └─TableReader 8000.00 root data:Selection",
" │ └─Selection 8000.00 cop[tikv] not(isnull(plus(test.t.b, test.t.b)))",
" │ └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo",
" └─TableReader(Probe) 9990.00 root data:Selection",
" └─Selection 9990.00 cop[tikv] not(isnull(test.t.b))",
" └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIndexJoinTableRange",
"Cases": [
{
"SQL": "desc format = 'brief' select /*+ TIDB_INLJ(t2)*/ * from t1, t2 where t1.a = t2.a and t1.b = t2.b",
"Plan": [
"IndexJoin 12487.50 root inner join, inner:TableReader, outer key:test.t1.a, inner key:test.t2.a, equal cond:eq(test.t1.a, test.t2.a), eq(test.t1.b, test.t2.b)",
"├─IndexReader(Build) 9990.00 root index:IndexFullScan",
"│ └─IndexFullScan 9990.00 cop[tikv] table:t1, index:idx_t1_b(b) keep order:false, stats:pseudo",
"└─TableReader(Probe) 1.00 root data:Selection",
" └─Selection 1.00 cop[tikv] not(isnull(test.t2.b))",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t1.a], keep order:false, stats:pseudo"
]
},
{
"SQL": "desc format = 'brief' select /*+ TIDB_INLJ(t2)*/ * from t1, t2 where t1.a = t2.a and t1.b = t2.a and t1.b = t2.b",
"Plan": [
"IndexJoin 12487.50 root inner join, inner:TableReader, outer key:test.t1.a, test.t1.b, inner key:test.t2.a, test.t2.a, equal cond:eq(test.t1.a, test.t2.a), eq(test.t1.b, test.t2.a), eq(test.t1.b, test.t2.b)",
"├─IndexReader(Build) 9990.00 root index:IndexFullScan",
"│ └─IndexFullScan 9990.00 cop[tikv] table:t1, index:idx_t1_b(b) keep order:false, stats:pseudo",
"└─TableReader(Probe) 1.00 root data:Selection",
" └─Selection 1.00 cop[tikv] not(isnull(test.t2.b))",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t1.a test.t1.b], keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestHintWithRequiredProperty",
"Cases": [
{
"SQL": "desc format = 'brief' select /*+ INL_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.b order by t2.a",
"Plan": [
"Sort 12487.50 root test.t.a",
"└─IndexJoin 12487.50 root inner join, inner:IndexLookUp, outer key:test.t.a, inner key:test.t.b, equal cond:eq(test.t.a, test.t.b)",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" └─IndexLookUp(Probe) 1.25 root ",
" ├─Selection(Build) 1.25 cop[tikv] not(isnull(test.t.b))",
" │ └─IndexRangeScan 1.25 cop[tikv] table:t2, index:b(b) range: decided by [eq(test.t.b, test.t.a)], keep order:false, stats:pseudo",
" └─TableRowIDScan(Probe) 1.25 cop[tikv] table:t2 keep order:false, stats:pseudo"
],
"Warnings": []
},
{
"SQL": "desc format = 'brief' select /*+ INL_HASH_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.b order by t2.a",
"Plan": [
"Sort 12487.50 root test.t.a",
"└─IndexHashJoin 12487.50 root inner join, inner:IndexLookUp, outer key:test.t.a, inner key:test.t.b, equal cond:eq(test.t.a, test.t.b)",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" └─IndexLookUp(Probe) 1.25 root ",
" ├─Selection(Build) 1.25 cop[tikv] not(isnull(test.t.b))",
" │ └─IndexRangeScan 1.25 cop[tikv] table:t2, index:b(b) range: decided by [eq(test.t.b, test.t.a)], keep order:false, stats:pseudo",
" └─TableRowIDScan(Probe) 1.25 cop[tikv] table:t2 keep order:false, stats:pseudo"
],
"Warnings": []
},
{
"SQL": "desc format = 'brief' select /*+ INL_MERGE_JOIN(t2)*/ t1.a, t2.a from t t1, t t2 ,t t3 where t1.a = t2.a and t3.a=t2.a",
"Plan": [
"HashJoin 15625.00 root inner join, equal:[eq(test.t.a, test.t.a)]",
"├─TableReader(Build) 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t3 keep order:false, stats:pseudo",
"└─IndexMergeJoin(Probe) 12500.00 root inner join, inner:TableReader, outer key:test.t.a, inner key:test.t.a",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" └─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a], keep order:true, stats:pseudo"
],
"Warnings": []
},
{
"SQL": "desc format = 'brief' select * from t t1, (select /*+ HASH_AGG() */ b, max(a) from t t2 group by b) t2 where t1.b = t2.b order by t1.b",
"Plan": [
"Sort 9990.00 root test.t.b",
"└─Projection 9990.00 root test.t.a, test.t.b, test.t.c, test.t.b, Column#7",
" └─HashJoin 9990.00 root inner join, equal:[eq(test.t.b, test.t.b)]",
" ├─HashAgg(Build) 7992.00 root group by:test.t.b, funcs:max(Column#10)->Column#7, funcs:firstrow(test.t.b)->test.t.b",
" │ └─IndexReader 7992.00 root index:HashAgg",
" │ └─HashAgg 7992.00 cop[tikv] group by:test.t.b, funcs:max(test.t.a)->Column#10",
" │ └─IndexFullScan 9990.00 cop[tikv] table:t2, index:b(b) keep order:false, stats:pseudo",
" └─TableReader(Probe) 9990.00 root data:Selection",
" └─Selection 9990.00 cop[tikv] not(isnull(test.t.b))",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Warnings": []
},
{
"SQL": "desc format = 'brief' select /*+ INL_HASH_JOIN(t2) */ distinct t2.a from t t1 join t t2 on t1.a = t2.a",
"Plan": [
"IndexHashJoin 12500.00 root inner join, inner:TableReader, outer key:test.t.a, inner key:test.t.a, equal cond:eq(test.t.a, test.t.a)",
"├─TableReader(Build) 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a], keep order:false, stats:pseudo"
],
"Warnings": []
},
{
"SQL": "desc format = 'brief' select /*+ INL_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.c order by t1.a",
"Plan": [
"Sort 12487.50 root test.t.a",
"└─HashJoin 12487.50 root inner join, equal:[eq(test.t.a, test.t.c)]",
" ├─TableReader(Build) 9990.00 root data:Selection",
" │ └─Selection 9990.00 cop[tikv] not(isnull(test.t.c))",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Warnings": [
"[planner:1815]Optimizer Hint /*+ INL_JOIN(t2) */ or /*+ TIDB_INLJ(t2) */ is inapplicable",
"[planner:1815]Optimizer Hint /*+ INL_JOIN(t2) */ or /*+ TIDB_INLJ(t2) */ is inapplicable"
]
}
]
},
{
"Name": "TestIndexHintWarning",
"Cases": [
{
"SQL": "select /*+ USE_INDEX(t1, j) */ * from t1",
"Warnings": [
"[planner:1176]Key 'j' doesn't exist in table 't1'"
]
},
{
"SQL": "select /*+ IGNORE_INDEX(t1, j) */ * from t1",
"Warnings": [
"[planner:1176]Key 'j' doesn't exist in table 't1'"
]
},
{
"SQL": "select /*+ USE_INDEX(t2, a, b, c) */ * from t1",
"Warnings": [
"[planner:1815]use_index(test.t2, a, b, c) is inapplicable, check whether the table(test.t2) exists"
]
},
{
"SQL": "select /*+ USE_INDEX(t2) */ * from t1",
"Warnings": [
"[planner:1815]use_index(test.t2) is inapplicable, check whether the table(test.t2) exists"
]
},
{
"SQL": "select /*+ USE_INDEX(t1, a), USE_INDEX(t2, a), USE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]use_index(test.t3, a) is inapplicable, check whether the table(test.t3) exists"
]
},
{
"SQL": "select /*+ USE_INDEX(t3, a), USE_INDEX(t4, b), IGNORE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]use_index(test.t3, a) is inapplicable, check whether the table(test.t3) exists",
"[planner:1815]use_index(test.t4, b) is inapplicable, check whether the table(test.t4) exists",
"[planner:1815]ignore_index(test.t3, a) is inapplicable, check whether the table(test.t3) exists"
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE(t3, a, b, d) */ * from t1",
"Warnings": [
"[planner:1815]use_index_merge(test.t3, a, b, d) is inapplicable, check whether the table(test.t3) exists"
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE(t1, a, b, c, d) */ * from t1",
"Warnings": [
"[planner:1815]use_index_merge(test.t1, a, b, c, d) is inapplicable, check whether the indexes (c, d) exist, or the indexes are conflicted with use_index/ignore_index/force_index hints."
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE(t1, a, b), USE_INDEX(t1, a) */ * from t1",
"Warnings": [
"[planner:1815]use_index_merge(test.t1, a, b) is inapplicable, check whether the indexes (b) exist, or the indexes are conflicted with use_index/ignore_index/force_index hints."
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE(t1, a, b), IGNORE_INDEX(t1, a) */ * from t1",
"Warnings": [
"[planner:1815]use_index_merge(test.t1, a, b) is inapplicable, check whether the indexes (a) exist, or the indexes are conflicted with use_index/ignore_index/force_index hints."
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE(t1, primary, a, b, c) */ * from t1",
"Warnings": [
"[planner:1815]use_index_merge(test.t1, primary, a, b, c) is inapplicable, check whether the indexes (c) exist, or the indexes are conflicted with use_index/ignore_index/force_index hints."
]
}
]
},
{
"Name": "TestHintWithoutTableWarning",
"Cases": [
{
"SQL": "select /*+ TIDB_SMJ() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint TIDB_SMJ() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint MERGE_JOIN() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ INL_JOIN() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint INL_JOIN() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ TIDB_INLJ() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint TIDB_INLJ() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ INL_HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint INL_HASH_JOIN() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ INL_MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint INL_MERGE_JOIN() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[planner:1815]Hint HASH_JOIN() is inapplicable. Please specify the table names in the arguments."
]
},
{
"SQL": "select /*+ USE_INDEX() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[parser:1064]Optimizer hint syntax error at line 1 column 22 near \") */\" "
]
},
{
"SQL": "select /*+ IGNORE_INDEX() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[parser:1064]Optimizer hint syntax error at line 1 column 25 near \") */\" "
]
},
{
"SQL": "select /*+ USE_INDEX_MERGE() */ * from t1, t2 where t1.a=t2.a",
"Warnings": [
"[parser:1064]Optimizer hint syntax error at line 1 column 28 near \") */\" "
]
}
]
},
{
"Name": "TestPartitionPruningForInExpr",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t where a in (1, 2,'11')",
"Plan": [
"TableReader 30.00 root partition:p0,p2 data:Selection",
"└─Selection 30.00 cop[tikv] in(test.t.a, 1, 2, 11)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where a in (17, null)",
"Plan": [
"TableReader 10.00 root partition:p0,p2 data:Selection",
"└─Selection 10.00 cop[tikv] in(test.t.a, 17, NULL)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where a in (16, 'abc')",
"Plan": [
"TableReader 20.00 root partition:p0,p2 data:Selection",
"└─Selection 20.00 cop[tikv] in(test.t.a, 16, 0)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where a in (15, 0.12, 3.47)",
"Plan": [
"TableReader 10.00 root partition:p2 data:Selection",
"└─Selection 10.00 cop[tikv] or(eq(test.t.a, 15), 0)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where a in (0.12, 3.47)",
"Plan": [
"TableDual 0.00 root rows:0"
]
},
{
"SQL": "explain format = 'brief' select * from t where a in (14, floor(3.47))",
"Plan": [
"TableReader 20.00 root partition:p0,p2 data:Selection",
"└─Selection 20.00 cop[tikv] in(test.t.a, 14, 3)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where b in (3, 4)",
"Plan": [
"TableReader 20.00 root partition:all data:Selection",
"└─Selection 20.00 cop[tikv] in(test.t.b, 3, 4)",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestStreamAggProp",
"Cases": [
{
"SQL": "select /*+ stream_agg() */ count(*) c from t group by a order by c limit 1",
"Plan": [
"TopN 1.00 root Column#3, offset:0, count:1",
"└─StreamAgg 8000.00 root group by:test.t.a, funcs:count(1)->Column#3",
" └─Sort 10000.00 root test.t.a",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select /*+ stream_agg() */ count(*) c from t group by a order by c",
"Plan": [
"Sort 8000.00 root Column#3",
"└─StreamAgg 8000.00 root group by:test.t.a, funcs:count(1)->Column#3",
" └─Sort 10000.00 root test.t.a",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"1",
"2"
]
},
{
"SQL": "select /*+ stream_agg() */ count(*) c from t group by a order by a limit 1",
"Plan": [
"Projection 1.00 root Column#3",
"└─Limit 1.00 root offset:0, count:1",
" └─StreamAgg 1.00 root group by:test.t.a, funcs:count(1)->Column#3, funcs:firstrow(test.t.a)->test.t.a",
" └─Sort 1.25 root test.t.a",
" └─TableReader 1.25 root data:TableFullScan",
" └─TableFullScan 1.25 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"2"
]
},
{
"SQL": "select /*+ stream_agg() */ count(*) c from t group by a order by a",
"Plan": [
"Projection 8000.00 root Column#3",
"└─StreamAgg 8000.00 root group by:test.t.a, funcs:count(1)->Column#3, funcs:firstrow(test.t.a)->test.t.a",
" └─Sort 10000.00 root test.t.a",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"2",
"1"
]
}
]
},
{
"Name": "TestOptimizeHintOnPartitionTable",
"Cases": [
{
"SQL": "select /*+ use_index(t) */ * from t",
"Plan": [
"PartitionUnion 30000.00 root ",
"├─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
"├─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": null
},
{
"SQL": "select /*+ use_index(t partition(p0, p1) b, c) */ * from t partition(p1,p2)",
"Plan": [
"PartitionUnion 20000.00 root ",
"├─IndexLookUp 10000.00 root ",
"│ ├─IndexFullScan(Build) 10000.00 cop[tikv] table:t, partition:p1, index:b(b) keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 10000.00 cop[tikv] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": [
"Warning 1105 Unknown partitions (p0) in optimizer hint /*+ USE_INDEX(t PARTITION(p0, p1) b, c) */"
]
},
{
"SQL": "select /*+ use_index(t partition(p_non_exist)) */ * from t partition(p1,p2)",
"Plan": [
"PartitionUnion 20000.00 root ",
"├─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": [
"Warning 1105 Unknown partitions (p_non_exist) in optimizer hint /*+ USE_INDEX(t PARTITION(p_non_exist)) */"
]
},
{
"SQL": "select /*+ use_index(t partition(p0, p1) b, c) */ * from t",
"Plan": [
"PartitionUnion 30000.00 root ",
"├─IndexLookUp 10000.00 root ",
"│ ├─IndexFullScan(Build) 10000.00 cop[tikv] table:t, partition:p0, index:b(b) keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 10000.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
"├─IndexLookUp 10000.00 root ",
"│ ├─IndexFullScan(Build) 10000.00 cop[tikv] table:t, partition:p1, index:b(b) keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 10000.00 cop[tikv] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": null
},
{
"SQL": "select /*+ ignore_index(t partition(p0, p1) b, c) */ * from t",
"Plan": [
"PartitionUnion 30000.00 root ",
"├─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p0 keep order:false, stats:pseudo",
"├─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": null
},
{
"SQL": "select /*+ hash_join(t1, t2 partition(p0)) */ * from t t1 join t t2 on t1.a = t2.a",
"Plan": [
"HashJoin 37500.00 root inner join, equal:[eq(test.t.a, test.t.a)]",
"├─PartitionUnion(Build) 30000.00 root ",
"│ ├─TableReader 10000.00 root data:TableFullScan",
"│ │ └─TableFullScan 10000.00 cop[tiflash] table:t2, partition:p0 keep order:false, stats:pseudo",
"│ ├─TableReader 10000.00 root data:TableFullScan",
"│ │ └─TableFullScan 10000.00 cop[tiflash] table:t2, partition:p1 keep order:false, stats:pseudo",
"│ └─TableReader 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tiflash] table:t2, partition:p2 keep order:false, stats:pseudo",
"└─PartitionUnion(Probe) 30000.00 root ",
" ├─TableReader 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tiflash] table:t1, partition:p0 keep order:false, stats:pseudo",
" ├─TableReader 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tiflash] table:t1, partition:p1 keep order:false, stats:pseudo",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t1, partition:p2 keep order:false, stats:pseudo"
],
"Warn": [
"Warning 1105 Optimizer Hint /*+ HASH_JOIN(t1, t2 PARTITION(p0)) */ is inapplicable on specified partitions"
]
},
{
"SQL": "select /*+ use_index_merge(t partition(p0)) */ * from t where t.b = 1 or t.c = \"8\"",
"Plan": [
"PartitionUnion 59.97 root ",
"├─IndexMerge 19.99 root ",
"│ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, partition:p0, index:b(b) range:[1,1], keep order:false, stats:pseudo",
"│ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, partition:p0, index:c(c) range:[\"8\",\"8\"], keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 19.99 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
"├─TableReader 19.99 root data:Selection",
"│ └─Selection 19.99 cop[tiflash] or(eq(test.t.b, 1), eq(test.t.c, \"8\"))",
"│ └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 19.99 root data:Selection",
" └─Selection 19.99 cop[tiflash] or(eq(test.t.b, 1), eq(test.t.c, \"8\"))",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": null
},
{
"SQL": "select /*+ use_index_merge(t partition(p0, p1) primary, b) */ * from t where t.a = 1 or t.b = 2",
"Plan": [
"PartitionUnion 33.00 root ",
"├─IndexMerge 11.00 root ",
"│ ├─TableRangeScan(Build) 1.00 cop[tikv] table:t, partition:p0 range:[1,1], keep order:false, stats:pseudo",
"│ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, partition:p0, index:b(b) range:[2,2], keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 11.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
"├─IndexMerge 11.00 root ",
"│ ├─TableRangeScan(Build) 1.00 cop[tikv] table:t, partition:p1 range:[1,1], keep order:false, stats:pseudo",
"│ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t, partition:p1, index:b(b) range:[2,2], keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 11.00 cop[tikv] table:t, partition:p1 keep order:false, stats:pseudo",
"└─TableReader 11.00 root data:Selection",
" └─Selection 11.00 cop[tiflash] or(eq(test.t.a, 1), eq(test.t.b, 2))",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p2 keep order:false, stats:pseudo"
],
"Warn": null
},
{
"SQL": "select /*+ use_index(t partition(p0) b) */ * from t partition(p0, p1)",
"Plan": [
"PartitionUnion 20000.00 root ",
"├─IndexLookUp 10000.00 root ",
"│ ├─IndexFullScan(Build) 10000.00 cop[tikv] table:t, partition:p0, index:b(b) keep order:false, stats:pseudo",
"│ └─TableRowIDScan(Probe) 10000.00 cop[tikv] table:t, partition:p0 keep order:false, stats:pseudo",
"└─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tiflash] table:t, partition:p1 keep order:false, stats:pseudo"
],
"Warn": null
}
]
},
{
"Name": "TestAccessPathOnClusterIndex",
"Cases": [
{
"SQL": "select * from t1",
"Plan": [
"TableReader 3.00 root data:TableFullScan",
"└─TableFullScan 3.00 cop[tikv] table:t1 keep order:false"
],
"Res": [
"1 111 1.1000000000 11",
"2 222 2.2000000000 12",
"3 333 3.3000000000 13"
]
},
{
"SQL": "select * from t1 where t1.a >= 1 and t1.a < 4",
"Plan": [
"TableReader 3.00 root data:TableRangeScan",
"└─TableRangeScan 3.00 cop[tikv] table:t1 range:[1,4), keep order:false"
],
"Res": [
"1 111 1.1000000000 11",
"2 222 2.2000000000 12",
"3 333 3.3000000000 13"
]
},
{
"SQL": "select * from t1 where t1.a = 1 and t1.b < \"333\"",
"Plan": [
"TableReader 0.82 root data:TableRangeScan",
"└─TableRangeScan 0.82 cop[tikv] table:t1 range:[1 -inf,1 \"333\"), keep order:false"
],
"Res": [
"1 111 1.1000000000 11"
]
},
{
"SQL": "select t1.a, t1.b, t1.c from t1 where t1.c = 3.3",
"Plan": [
"IndexReader 1.00 root index:IndexRangeScan",
"└─IndexRangeScan 1.00 cop[tikv] table:t1, index:c(c) range:[3.3000000000,3.3000000000], keep order:false"
],
"Res": [
"3 333 3.3000000000"
]
},
{
"SQL": "select t1.b, t1.c from t1 where t1.c = 2.2",
"Plan": [
"IndexReader 1.00 root index:IndexRangeScan",
"└─IndexRangeScan 1.00 cop[tikv] table:t1, index:c(c) range:[2.2000000000,2.2000000000], keep order:false"
],
"Res": [
"222 2.2000000000"
]
},
{
"SQL": "select /*+ use_index(t1, c) */ * from t1",
"Plan": [
"IndexLookUp 3.00 root ",
"├─IndexFullScan(Build) 3.00 cop[tikv] table:t1, index:c(c) keep order:false",
"└─TableRowIDScan(Probe) 3.00 cop[tikv] table:t1 keep order:false"
],
"Res": [
"1 111 1.1000000000 11",
"2 222 2.2000000000 12",
"3 333 3.3000000000 13"
]
},
{
"SQL": "select * from t1 use index(c) where t1.c in (2.2, 3.3)",
"Plan": [
"IndexLookUp 2.00 root ",
"├─IndexRangeScan(Build) 2.00 cop[tikv] table:t1, index:c(c) range:[2.2000000000,2.2000000000], [3.3000000000,3.3000000000], keep order:false",
"└─TableRowIDScan(Probe) 2.00 cop[tikv] table:t1 keep order:false"
],
"Res": [
"2 222 2.2000000000 12",
"3 333 3.3000000000 13"
]
},
{
"SQL": "select * from t1 where t1.a = 1 order by b",
"Plan": [
"TableReader 1.00 root data:TableRangeScan",
"└─TableRangeScan 1.00 cop[tikv] table:t1 range:[1,1], keep order:true"
],
"Res": [
"1 111 1.1000000000 11"
]
},
{
"SQL": "select * from t1 order by a, b limit 1",
"Plan": [
"Limit 1.00 root offset:0, count:1",
"└─TableReader 1.00 root data:Limit",
" └─Limit 1.00 cop[tikv] offset:0, count:1",
" └─TableFullScan 1.00 cop[tikv] table:t1 keep order:true"
],
"Res": [
"1 111 1.1000000000 11"
]
},
{
"SQL": "select /*+ use_index_merge(t1 primary, c) */ * from t1 where t1.a >= 1 or t1.c = 2.2",
"Plan": [
"IndexMerge 3.00 root ",
"├─TableRangeScan(Build) 3.00 cop[tikv] table:t1 range:[1,+inf], keep order:false",
"├─IndexRangeScan(Build) 1.00 cop[tikv] table:t1, index:c(c) range:[2.2000000000,2.2000000000], keep order:false",
"└─TableRowIDScan(Probe) 3.00 cop[tikv] table:t1 keep order:false"
],
"Res": [
"1 111 1.1000000000 11",
"2 222 2.2000000000 12",
"3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ use_index_merge(t1 primary, c) */ * from t1 where t1.a = 1 and t1.b = '111' or t1.c = 3.3",
"Plan": [
"IndexMerge 1.67 root ",
"├─TableRangeScan(Build) 1.00 cop[tikv] table:t1 range:[1 \"111\",1 \"111\"], keep order:false",
"├─IndexRangeScan(Build) 1.00 cop[tikv] table:t1, index:c(c) range:[3.3000000000,3.3000000000], keep order:false",
"└─TableRowIDScan(Probe) 1.67 cop[tikv] table:t1 keep order:false"
],
"Res": [
"1 111 1.1000000000 11",
"3 333 3.3000000000 13"
]
}
]
},
{
"Name": "TestIndexJoinOnClusteredIndex",
"Cases": [
{
"SQL": "select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
"Plan": [
"IndexJoin 3.00 root inner join, inner:TableReader, outer key:test.t.a, inner key:test.t.a, equal cond:eq(test.t.a, test.t.a)",
"├─TableReader(Build) 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a], keep order:false"
],
"Res": [
"1 111 1.1000000000 11 1 111 1.1000000000 11",
"2 222 2.2000000000 12 2 222 2.2000000000 12",
"3 333 3.3000000000 13 3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ inl_merge_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
"Plan": [
"IndexMergeJoin 3.00 root inner join, inner:TableReader, outer key:test.t.a, inner key:test.t.a",
"├─TableReader(Build) 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a], keep order:true"
],
"Res": [
"1 111 1.1000000000 11 1 111 1.1000000000 11",
"2 222 2.2000000000 12 2 222 2.2000000000 12",
"3 333 3.3000000000 13 3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ inl_hash_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
"Plan": [
"IndexHashJoin 3.00 root inner join, inner:TableReader, outer key:test.t.a, inner key:test.t.a, equal cond:eq(test.t.a, test.t.a)",
"├─TableReader(Build) 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a], keep order:false"
],
"Res": [
"1 111 1.1000000000 11 1 111 1.1000000000 11",
"2 222 2.2000000000 12 2 222 2.2000000000 12",
"3 333 3.3000000000 13 3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a and t1.b = t2.b",
"Plan": [
"IndexJoin 3.00 root inner join, inner:TableReader, outer key:test.t.a, test.t.b, inner key:test.t.a, test.t.b, equal cond:eq(test.t.a, test.t.a), eq(test.t.b, test.t.b)",
"├─TableReader(Build) 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─TableReader(Probe) 1.00 root data:TableRangeScan",
" └─TableRangeScan 1.00 cop[tikv] table:t2 range: decided by [test.t.a test.t.b], keep order:false"
],
"Res": [
"1 111 1.1000000000 11 1 111 1.1000000000 11",
"2 222 2.2000000000 12 2 222 2.2000000000 12",
"3 333 3.3000000000 13 3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.c = t2.c",
"Plan": [
"IndexJoin 3.00 root inner join, inner:IndexLookUp, outer key:test.t.c, inner key:test.t.c, equal cond:eq(test.t.c, test.t.c)",
"├─TableReader(Build) 3.00 root data:Selection",
"│ └─Selection 3.00 cop[tikv] not(isnull(test.t.c))",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─IndexLookUp(Probe) 1.00 root ",
" ├─Selection(Build) 1.00 cop[tikv] not(isnull(test.t.c))",
" │ └─IndexRangeScan 1.00 cop[tikv] table:t2, index:c(c) range: decided by [eq(test.t.c, test.t.c)], keep order:false",
" └─TableRowIDScan(Probe) 1.00 cop[tikv] table:t2 keep order:false"
],
"Res": [
"1 111 1.1000000000 11 1 111 1.1000000000 11",
"2 222 2.2000000000 12 2 222 2.2000000000 12",
"3 333 3.3000000000 13 3 333 3.3000000000 13"
]
},
{
"SQL": "select /*+ inl_merge_join(t1,t2) */ t2.a, t2.c, t2.d from t t1 left join t t2 on t1.a = t2.c;",
"Plan": [
"IndexMergeJoin 3.00 root left outer join, inner:Projection, outer key:Column#9, inner key:test.t.c",
"├─Projection(Build) 3.00 root cast(test.t.a, decimal(20,0) BINARY)->Column#9",
"│ └─TableReader 3.00 root data:TableFullScan",
"│ └─TableFullScan 3.00 cop[tikv] table:t1 keep order:false",
"└─Projection(Probe) 1.00 root test.t.a, test.t.c, test.t.d",
" └─IndexLookUp 1.00 root ",
" ├─IndexRangeScan(Build) 1.00 cop[tikv] table:t2, index:c(c) range: decided by [eq(test.t.c, Column#9)], keep order:true",
" └─TableRowIDScan(Probe) 1.00 cop[tikv] table:t2 keep order:false"
],
"Res": [
"<nil> <nil> <nil>",
"<nil> <nil> <nil>",
"<nil> <nil> <nil>"
]
}
]
},
{
"Name": "TestPartitionExplain",
"Cases": [
{
"SQL": "select * from pt where c > 10",
"Plan": [
"TableReader_7 3333.33 root partition:dual data:Selection_6",
"└─Selection_6 3333.33 cop[tikv] gt(test.pt.c, 10)",
" └─TableFullScan_5 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from pt where c > 8",
"Plan": [
"TableReader_7 3333.33 root partition:p2 data:Selection_6",
"└─Selection_6 3333.33 cop[tikv] gt(test.pt.c, 8)",
" └─TableFullScan_5 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from pt where c < 2 or c >= 9",
"Plan": [
"TableReader_7 6656.67 root partition:p0,p2 data:Selection_6",
"└─Selection_6 6656.67 cop[tikv] or(lt(test.pt.c, 2), ge(test.pt.c, 9))",
" └─TableFullScan_5 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select c from pt",
"Plan": [
"IndexReader_7 10000.00 root partition:all index:IndexFullScan_6",
"└─IndexFullScan_6 10000.00 cop[tikv] table:pt, index:i_c(c) keep order:false, stats:pseudo"
]
},
{
"SQL": "select c from pt where c > 10",
"Plan": [
"IndexReader_6 3333.33 root partition:dual index:IndexRangeScan_5",
"└─IndexRangeScan_5 3333.33 cop[tikv] table:pt, index:i_c(c) range:(10,+inf], keep order:false, stats:pseudo"
]
},
{
"SQL": "select c from pt where c > 8",
"Plan": [
"IndexReader_6 3333.33 root partition:p2 index:IndexRangeScan_5",
"└─IndexRangeScan_5 3333.33 cop[tikv] table:pt, index:i_c(c) range:(8,+inf], keep order:false, stats:pseudo"
]
},
{
"SQL": "select c from pt where c < 2 or c >= 9",
"Plan": [
"IndexReader_6 6656.67 root partition:p0,p2 index:IndexRangeScan_5",
"└─IndexRangeScan_5 6656.67 cop[tikv] table:pt, index:i_c(c) range:[-inf,2), [9,+inf], keep order:false, stats:pseudo"
]
},
{
"SQL": "select /*+ use_index(pt, i_id) */ * from pt",
"Plan": [
"IndexLookUp_6 10000.00 root partition:all ",
"├─IndexFullScan_4(Build) 10000.00 cop[tikv] table:pt, index:i_id(id) keep order:false, stats:pseudo",
"└─TableRowIDScan_5(Probe) 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select /*+ use_index(pt, i_id) */ * from pt where id < 4 and c > 10",
"Plan": [
"IndexLookUp_8 1107.78 root partition:dual ",
"├─IndexRangeScan_5(Build) 3323.33 cop[tikv] table:pt, index:i_id(id) range:[-inf,4), keep order:false, stats:pseudo",
"└─Selection_7(Probe) 1107.78 cop[tikv] gt(test.pt.c, 10)",
" └─TableRowIDScan_6 3323.33 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c > 8",
"Plan": [
"IndexLookUp_8 1107.78 root partition:p2 ",
"├─IndexRangeScan_5(Build) 3323.33 cop[tikv] table:pt, index:i_id(id) range:[-inf,10), keep order:false, stats:pseudo",
"└─Selection_7(Probe) 1107.78 cop[tikv] gt(test.pt.c, 8)",
" └─TableRowIDScan_6 3323.33 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c < 2 or c >= 9",
"Plan": [
"IndexLookUp_8 5325.33 root partition:p0,p2 ",
"├─IndexFullScan_5(Build) 10000.00 cop[tikv] table:pt, index:i_id(id) keep order:false, stats:pseudo",
"└─Selection_7(Probe) 5325.33 cop[tikv] or(and(lt(test.pt.id, 10), lt(test.pt.c, 2)), ge(test.pt.c, 9))",
" └─TableRowIDScan_6 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from pt partition (p0) where c > 8",
"Plan": [
"TableReader_7 3333.33 root partition:dual data:Selection_6",
"└─Selection_6 3333.33 cop[tikv] gt(test.pt.c, 8)",
" └─TableFullScan_5 10000.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select c from pt partition (p0, p2) where c > 8",
"Plan": [
"IndexReader_6 3333.33 root partition:p2 index:IndexRangeScan_5",
"└─IndexRangeScan_5 3333.33 cop[tikv] table:pt, index:i_c(c) range:(8,+inf], keep order:false, stats:pseudo"
]
},
{
"SQL": "select /*+ use_index(pt, i_id) */ * from pt partition (p1, p2) where c < 3 and id = 5",
"Plan": [
"IndexLookUp_8 3.32 root partition:dual ",
"├─IndexRangeScan_5(Build) 10.00 cop[tikv] table:pt, index:i_id(id) range:[5,5], keep order:false, stats:pseudo",
"└─Selection_7(Probe) 3.32 cop[tikv] lt(test.pt.c, 3)",
" └─TableRowIDScan_6 10.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from pt where id = 4 or c < 7",
"Plan": [
"IndexMerge_11 3330.01 root partition:all ",
"├─IndexRangeScan_8(Build) 10.00 cop[tikv] table:pt, index:i_id(id) range:[4,4], keep order:false, stats:pseudo",
"├─IndexRangeScan_9(Build) 3323.33 cop[tikv] table:pt, index:i_c(c) range:[-inf,7), keep order:false, stats:pseudo",
"└─TableRowIDScan_10(Probe) 3330.01 cop[tikv] table:pt keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from pt where id > 4 or c = 7",
"Plan": [
"IndexMerge_11 3340.00 root partition:all ",
"├─IndexRangeScan_8(Build) 3333.33 cop[tikv] table:pt, index:i_id(id) range:(4,+inf], keep order:false, stats:pseudo",
"├─IndexRangeScan_9(Build) 10.00 cop[tikv] table:pt, index:i_c(c) range:[7,7], keep order:false, stats:pseudo",
"└─TableRowIDScan_10(Probe) 3340.00 cop[tikv] table:pt keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestInvalidHint",
"Cases": [
{
"SQL": "explain format = 'brief' select /*+ use_index_merge(tt) */ * from tt where a=10 or a=20;",
"Plan": [
"IndexReader 20.00 root index:IndexRangeScan",
"└─IndexRangeScan 20.00 cop[tikv] table:tt, index:a(a) range:[10,10], [20,20], keep order:false, stats:pseudo"
],
"Warnings": [
"Warning 1105 IndexMerge is inapplicable."
]
},
{
"SQL": "explain format = 'brief' select /*+ use_index_merge(tt) */ * from tt where a=15 or (a < 10 or a > 20);",
"Plan": [
"IndexReader 6666.67 root index:IndexRangeScan",
"└─IndexRangeScan 6666.67 cop[tikv] table:tt, index:a(a) range:[-inf,10), [15,15], (20,+inf], keep order:false, stats:pseudo"
],
"Warnings": [
"Warning 1105 IndexMerge is inapplicable."
]
}
]
},
{
"Name": "TestApproxPercentile",
"Cases": [
{
"SQL": "select approx_percentile(a, 50) from t",
"Plan": [
"HashAgg_5 1.00 root funcs:approx_percentile(test.t.a, 50)->Column#4",
"└─TableReader_11 10000.00 root data:TableFullScan_10",
" └─TableFullScan_10 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"3"
]
},
{
"SQL": "select approx_percentile(a, 10) from t",
"Plan": [
"HashAgg_5 1.00 root funcs:approx_percentile(test.t.a, 10)->Column#4",
"└─TableReader_11 10000.00 root data:TableFullScan_10",
" └─TableFullScan_10 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select approx_percentile(a, 10+70) from t",
"Plan": [
"HashAgg_5 1.00 root funcs:approx_percentile(test.t.a, 80)->Column#4",
"└─TableReader_11 10000.00 root data:TableFullScan_10",
" └─TableFullScan_10 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"4"
]
},
{
"SQL": "select approx_percentile(a, 10*10) from t",
"Plan": [
"HashAgg_5 1.00 root funcs:approx_percentile(test.t.a, 100)->Column#4",
"└─TableReader_11 10000.00 root data:TableFullScan_10",
" └─TableFullScan_10 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"5"
]
},
{
"SQL": "select approx_percentile(a, 50) from t group by b order by b",
"Plan": [
"Projection_6 8000.00 root Column#4",
"└─Sort_7 8000.00 root test.t.b",
" └─HashAgg_9 8000.00 root group by:test.t.b, funcs:approx_percentile(test.t.a, 50)->Column#4, funcs:firstrow(test.t.b)->test.t.b",
" └─TableReader_13 10000.00 root data:TableFullScan_12",
" └─TableFullScan_12 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Res": [
"1",
"4"
]
}
]
},
{
"Name": "TestConvertRangeToPoint",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t0 where a > 1 and a < 3 order by b limit 2",
"Plan": [
"Limit 2.00 root offset:0, count:2",
"└─IndexReader 2.00 root index:Limit",
" └─Limit 2.00 cop[tikv] offset:0, count:2",
" └─IndexRangeScan 2.50 cop[tikv] table:t0, index:a(a, b) range:[2,2], keep order:true, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t1 where a >= 2 and a <= 2 and b = 2 and c > 2",
"Plan": [
"IndexReader 0.33 root index:IndexRangeScan",
"└─IndexRangeScan 0.33 cop[tikv] table:t1, index:a(a, b, c) range:(2 2 2,2 2 +inf], keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t2 where a >= 2.5 and a <= 2.5 order by b limit 2",
"Plan": [
"Limit 2.00 root offset:0, count:2",
"└─IndexReader 2.00 root index:Limit",
" └─Limit 2.00 cop[tikv] offset:0, count:2",
" └─IndexRangeScan 2.00 cop[tikv] table:t2, index:a(a, b) range:[2.5,2.5], keep order:true, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t3 where a >= 'a' and a <= 'a' and b = 'b' and c > 'c'",
"Plan": [
"IndexReader 0.33 root index:IndexRangeScan",
"└─IndexRangeScan 0.33 cop[tikv] table:t3, index:a(a, b, c) range:(\"a\" \"b\" \"c\",\"a\" \"b\" +inf], keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIssue22105",
"Cases": [
{
"SQL": "explain format = 'brief' SELECT /*+ use_index_merge(t1)*/ COUNT(*) FROM t1 WHERE (key4=42 AND key6 IS NOT NULL) OR (key1=4 AND key3=6)",
"Plan": [
"StreamAgg 1.00 root funcs:count(1)->Column#10",
"└─IndexMerge 0.02 root ",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:i4(key4) range:[42,42], keep order:false, stats:pseudo",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:i1(key1) range:[4,4], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.02 cop[tikv] or(and(eq(test.t1.key4, 42), not(isnull(test.t1.key6))), and(eq(test.t1.key1, 4), eq(test.t1.key3, 6)))",
" └─TableRowIDScan 19.99 cop[tikv] table:t1 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestReorderSimplifiedOuterJoins",
"Cases": [
{
"SQL": "explain format = 'brief' SELECT t1.pk FROM t1 INNER JOIN t2 ON t1.col1 = t2.pk INNER JOIN t3 ON t1.col3 = t3.pk WHERE t2.col1 IN ('a' , 'b') AND t3.keycol = 'c' AND t1.col2 = 'a' AND t1.col1 != 'abcdef' AND t1.col1 != 'aaaaaa'",
"Plan": [
"IndexJoin 13.81 root inner join, inner:IndexLookUp, outer key:test.t1.col1, inner key:test.t2.pk, equal cond:eq(test.t1.col1, test.t2.pk)",
"├─IndexJoin(Build) 12.50 root inner join, inner:IndexLookUp, outer key:test.t3.pk, inner key:test.t1.col3, equal cond:eq(test.t3.pk, test.t1.col3)",
"│ ├─IndexLookUp(Build) 10.00 root ",
"│ │ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t3, index:keycol(keycol, pad1, pad2) range:[\"c\",\"c\"], keep order:false, stats:pseudo",
"│ │ └─TableRowIDScan(Probe) 10.00 cop[tikv] table:t3 keep order:false, stats:pseudo",
"│ └─IndexLookUp(Probe) 1.25 root ",
"│ ├─Selection(Build) 1.81 cop[tikv] not(isnull(test.t1.col3))",
"│ │ └─IndexRangeScan 1.81 cop[tikv] table:t1, index:col2(col2, col3) range: decided by [eq(test.t1.col3, test.t3.pk) eq(test.t1.col2, a)], keep order:false, stats:pseudo",
"│ └─Selection(Probe) 1.25 cop[tikv] ne(test.t1.col1, \"aaaaaa\"), ne(test.t1.col1, \"abcdef\"), not(isnull(test.t1.col1))",
"│ └─TableRowIDScan 1.81 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─IndexLookUp(Probe) 1.00 root ",
" ├─Selection(Build) 1.00 cop[tikv] ne(test.t2.pk, \"aaaaaa\"), ne(test.t2.pk, \"abcdef\")",
" │ └─IndexRangeScan 1.00 cop[tikv] table:t2, index:PRIMARY(pk) range: decided by [eq(test.t2.pk, test.t1.col1)], keep order:false, stats:pseudo",
" └─Selection(Probe) 1.00 cop[tikv] in(test.t2.col1, \"a\", \"b\")",
" └─TableRowIDScan 1.00 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' SELECT t1.pk FROM t1 LEFT JOIN t2 ON t1.col1 = t2.pk LEFT JOIN t3 ON t1.col3 = t3.pk WHERE t2.col1 IN ('a' , 'b') AND t3.keycol = 'c' AND t1.col2 = 'a' AND t1.col1 != 'abcdef' AND t1.col1 != 'aaaaaa'",
"Plan": [
"IndexJoin 13.81 root inner join, inner:IndexLookUp, outer key:test.t1.col1, inner key:test.t2.pk, equal cond:eq(test.t1.col1, test.t2.pk)",
"├─IndexJoin(Build) 12.50 root inner join, inner:IndexLookUp, outer key:test.t3.pk, inner key:test.t1.col3, equal cond:eq(test.t3.pk, test.t1.col3)",
"│ ├─IndexLookUp(Build) 10.00 root ",
"│ │ ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t3, index:keycol(keycol, pad1, pad2) range:[\"c\",\"c\"], keep order:false, stats:pseudo",
"│ │ └─TableRowIDScan(Probe) 10.00 cop[tikv] table:t3 keep order:false, stats:pseudo",
"│ └─IndexLookUp(Probe) 1.25 root ",
"│ ├─Selection(Build) 1.81 cop[tikv] not(isnull(test.t1.col3))",
"│ │ └─IndexRangeScan 1.81 cop[tikv] table:t1, index:col2(col2, col3) range: decided by [eq(test.t1.col3, test.t3.pk) eq(test.t1.col2, a)], keep order:false, stats:pseudo",
"│ └─Selection(Probe) 1.25 cop[tikv] ne(test.t1.col1, \"aaaaaa\"), ne(test.t1.col1, \"abcdef\"), not(isnull(test.t1.col1))",
"│ └─TableRowIDScan 1.81 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─IndexLookUp(Probe) 1.00 root ",
" ├─Selection(Build) 1.00 cop[tikv] ne(test.t2.pk, \"aaaaaa\"), ne(test.t2.pk, \"abcdef\")",
" │ └─IndexRangeScan 1.00 cop[tikv] table:t2, index:PRIMARY(pk) range: decided by [eq(test.t2.pk, test.t1.col1)], keep order:false, stats:pseudo",
" └─Selection(Probe) 1.00 cop[tikv] in(test.t2.col1, \"a\", \"b\")",
" └─TableRowIDScan 1.00 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestDecorrelateInnerJoinInSubquery",
"Cases": [
{
"SQL": "explain format = 'brief' select * from t where exists (select 1 from t t1 join t t2 where t1.a = t2.a and t1.a = t.a)",
"Plan": [
"HashJoin 8000.00 root semi join, equal:[eq(test.t.a, test.t.a)]",
"├─HashJoin(Build) 12500.00 root inner join, equal:[eq(test.t.a, test.t.a)]",
"│ ├─TableReader(Build) 10000.00 root data:TableFullScan",
"│ │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
"│ └─TableReader(Probe) 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
},
{
"SQL": "explain format = 'brief' select * from t where exists (select 1 from t t1 join t t2 on t1.a = t2.a and t1.a = t.a)",
"Plan": [
"HashJoin 8000.00 root semi join, equal:[eq(test.t.a, test.t.a)]",
"├─HashJoin(Build) 12500.00 root inner join, equal:[eq(test.t.a, test.t.a)]",
"│ ├─TableReader(Build) 10000.00 root data:TableFullScan",
"│ │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
"│ └─TableReader(Probe) 10000.00 root data:TableFullScan",
"│ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
"└─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestMultiColMaxOneRow",
"Cases": [
{
"SQL": "select (select c from t2 where t2.a = t1.a and t2.b = 1) from t1",
"Plan": [
"HashJoin 10000.00 root left outer join, equal:[eq(test.t1.a, test.t2.a)]",
"├─TableReader(Build) 10.00 root data:Selection",
"│ └─Selection 10.00 cop[tikv] eq(test.t2.b, 1)",
"│ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
"└─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
]
},
{
"SQL": "select (select c from t2 where t2.a = t1.a and (t2.b = 1 or t2.b = 2)) from t1",
"Plan": [
"Projection 10000.00 root test.t2.c",
"└─Apply 10000.00 root CARTESIAN left outer join",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" └─MaxOneRow(Probe) 1.00 root ",
" └─IndexLookUp 0.02 root ",
" ├─Selection(Build) 0.02 cop[tikv] or(eq(test.t2.b, 1), eq(test.t2.b, 2))",
" │ └─IndexRangeScan 10.00 cop[tikv] table:t2, index:PRIMARY(a, b) range: decided by [eq(test.t2.a, test.t1.a)], keep order:false, stats:pseudo",
" └─TableRowIDScan(Probe) 0.02 cop[tikv] table:t2 keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIssue24095",
"Cases": [
{
"SQL": "select count(*) from t join (select t.id, t.value v1 from t join t t1 on t.id = t1.id order by t.value limit 1) v on v.id = t.id and v.v1 = t.value;",
"Plan": [
"StreamAgg 1.00 root funcs:count(1)->Column#10",
"└─HashJoin 1.00 root inner join, equal:[eq(test.t.id, test.t.id) eq(test.t.value, test.t.value)]",
" ├─Selection(Build) 0.80 root not(isnull(test.t.id)), not(isnull(test.t.value))",
" │ └─TopN 1.00 root test.t.value, offset:0, count:1",
" │ └─HashJoin 12487.50 root inner join, equal:[eq(test.t.id, test.t.id)]",
" │ ├─TableReader(Build) 9990.00 root data:Selection",
" │ │ └─Selection 9990.00 cop[tikv] not(isnull(test.t.id))",
" │ │ └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo",
" │ └─TableReader(Probe) 9990.00 root data:Selection",
" │ └─Selection 9990.00 cop[tikv] not(isnull(test.t.id))",
" │ └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo",
" └─TableReader(Probe) 9980.01 root data:Selection",
" └─Selection 9980.01 cop[tikv] not(isnull(test.t.id)), not(isnull(test.t.value))",
" └─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestSequenceAsDataSource",
"Cases": [
{
"SQL": "select 1 from s1",
"Plan": [
"Projection 1.00 root 1->Column#1",
"└─TableDual 1.00 root rows:1"
]
},
{
"SQL": "select count(1) from s1",
"Plan": [
"StreamAgg 1.00 root funcs:count(1)->Column#1",
"└─TableDual 1.00 root rows:1"
]
},
{
"SQL": "select count(*) from s1",
"Plan": [
"StreamAgg 1.00 root funcs:count(1)->Column#1",
"└─TableDual 1.00 root rows:1"
]
},
{
"SQL": "select sum(1) from s1",
"Plan": [
"StreamAgg 1.00 root funcs:sum(1)->Column#1",
"└─TableDual 1.00 root rows:1"
]
},
{
"SQL": "select count(1) as cnt from s1 union select count(1) as cnt from s2",
"Plan": [
"HashAgg 2.00 root group by:Column#3, funcs:firstrow(Column#3)->Column#3",
"└─Union 2.00 root ",
" ├─StreamAgg 1.00 root funcs:count(1)->Column#1",
" │ └─TableDual 1.00 root rows:1",
" └─StreamAgg 1.00 root funcs:count(1)->Column#2",
" └─TableDual 1.00 root rows:1"
]
}
]
},
{
"Name": "TestIsMatchProp",
"Cases": [
{
"SQL": "select a, b, c from t1 where a > 3 and b = 4 order by a, c",
"Plan": [
"IndexReader 3.33 root index:Selection",
"└─Selection 3.33 cop[tikv] eq(test.t1.b, 4)",
" └─IndexRangeScan 3333.33 cop[tikv] table:t1, index:idx_a_b_c(a, b, c) range:(3,+inf], keep order:true, stats:pseudo"
]
},
{
"SQL": "select * from t2 where a = 1 and c = 2 order by b, d",
"Plan": [
"IndexReader 0.01 root index:Selection",
"└─Selection 0.01 cop[tikv] eq(test.t2.c, 2)",
" └─IndexRangeScan 10.00 cop[tikv] table:t2, index:idx_a_b_c_d(a, b, c, d) range:[1,1], keep order:true, stats:pseudo"
]
},
{
"SQL": "select a, b, c from t1 where (a = 1 and b = 1 and c = 1) or (a = 1 and b = 1 and c = 2) order by c",
"Plan": [
"IndexReader 0.03 root index:IndexRangeScan",
"└─IndexRangeScan 0.03 cop[tikv] table:t1, index:idx_a_b_c(a, b, c) range:[1 1 1,1 1 2], keep order:true, stats:pseudo"
]
},
{
"SQL": "select a, b, c from t1 where (a = 1 and b = 1 and c < 3) or (a = 1 and b = 1 and c > 6) order by c",
"Plan": [
"IndexReader 0.67 root index:IndexRangeScan",
"└─IndexRangeScan 0.67 cop[tikv] table:t1, index:idx_a_b_c(a, b, c) range:[1 1 -inf,1 1 3), (1 1 6,1 1 +inf], keep order:true, stats:pseudo"
]
},
{
"SQL": "select * from t2 where ((a = 1 and b = 1 and d < 3) or (a = 1 and b = 1 and d > 6)) and c = 3 order by d",
"Plan": [
"IndexReader 0.00 root index:Selection",
"└─Selection 0.00 cop[tikv] eq(test.t2.c, 3), or(and(eq(test.t2.a, 1), and(eq(test.t2.b, 1), lt(test.t2.d, 3))), and(eq(test.t2.a, 1), and(eq(test.t2.b, 1), gt(test.t2.d, 6))))",
" └─IndexRangeScan 10.00 cop[tikv] table:t2, index:idx_a_b_c_d(a, b, c, d) range:[1,1], keep order:true, stats:pseudo"
]
}
]
},
{
"Name": "TestHeuristicIndexSelection",
"Cases": [
{
"SQL": "select * from t1 where a = 3 or a = 5",
"Plan": [
"Batch_Point_Get_5 2.00 12.53 root table:t1 handle:[3 5], keep order:false, desc:false"
],
"Warnings": [
"Note 1105 handle of t1 is selected since the path only has point ranges"
]
},
{
"SQL": "select f, g from t1 where f = 2 and g in (3, 4, 5)",
"Plan": [
"Batch_Point_Get_5 3.00 11.40 root table:t1, index:f_g(f, g) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 unique index f_g of t1 is selected since the path only has point ranges with single scan"
]
},
{
"SQL": "select * from t1 where c = 1 and (d = 2 or d = 3) and e in (4, 5)",
"Plan": [
"Batch_Point_Get_5 4.00 27.20 root table:t1, index:c_d_e(c, d, e) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 unique index c_d_e of t1 is selected since the path only has point ranges with double scan"
]
},
{
"SQL": "select f, g from t1 where f = 2 and g > 3",
"Plan": [
"IndexReader_6 33.33 160.78 root index:IndexRangeScan_5",
"└─IndexRangeScan_5 33.33 1870.00 cop[tikv] table:t1, index:f_g(f, g) range:(2 3,2 +inf], keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 unique index f_g of t1 is selected since the path only fetches limited number of rows with single scan"
]
},
{
"SQL": "select a, b, c from t2 where a = 1 and b = 2 and c in (1, 2, 3, 4, 5)",
"Plan": [
"Selection_6 0.01 0.00 root eq(test.t2.b, 2), in(test.t2.c, 1, 2, 3, 4, 5)",
"└─Point_Get_5 1.00 8.60 root table:t2, index:idx_a(a) "
],
"Warnings": [
"Note 1105 unique index idx_a of t2 is selected since the path only has point ranges with double scan"
]
},
{
"SQL": "select * from t3 where (a = 1 or a = 3) and b = 'xx'",
"Plan": [
"Batch_Point_Get_5 2.00 7.60 root table:t3, clustered index:PRIMARY(a, b) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 handle of t3 is selected since the path only has point ranges"
]
},
{
"SQL": "select * from t4 where (a = 1 or a = 3) and b = 'xx'",
"Plan": [
"Batch_Point_Get_5 2.00 10.00 root table:t4, index:PRIMARY(a, b) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 unique index PRIMARY of t4 is selected since the path only has point ranges with double scan"
]
},
{
"SQL": "select a, b from t3 where (a = 1 or a = 3) and b = 'xx'",
"Plan": [
"Batch_Point_Get_5 2.00 7.60 root table:t3, clustered index:PRIMARY(a, b) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 handle of t3 is selected since the path only has point ranges"
]
},
{
"SQL": "select a, b from t4 where (a = 1 or a = 3) and b = 'xx'",
"Plan": [
"Batch_Point_Get_5 2.00 7.60 root table:t4, index:PRIMARY(a, b) keep order:false, desc:false"
],
"Warnings": [
"Note 1105 unique index PRIMARY of t4 is selected since the path only has point ranges with single scan"
]
},
{
"SQL": "update t1 set b = 2 where a = 4 or a = 6",
"Plan": [
"Update_4 N/A N/A root N/A",
"└─Batch_Point_Get_6 2.00 12.53 root table:t1 handle:[4 6], keep order:false, desc:false"
],
"Warnings": [
"Note 1105 handle of t1 is selected since the path only has point ranges"
]
},
{
"SQL": "delete from t1 where f = 2 and g in (3, 4)",
"Plan": [
"Delete_4 N/A N/A root N/A",
"└─Selection_7 2.00 0.00 root in(test.t1.g, 3, 4)",
" └─Point_Get_6 1.00 9.80 root table:t1, index:f(f) "
],
"Warnings": [
"Note 1105 unique index f of t1 is selected since the path only has point ranges with double scan"
]
},
{
"SQL": "insert into t3 select a, b, c from t1 where f = 2",
"Plan": [
"Insert_1 N/A N/A root N/A",
"└─Projection_6 1.00 25.40 root test.t1.a, test.t1.b, test.t1.c",
" └─Point_Get_7 1.00 6.80 root table:t1, index:f(f) "
],
"Warnings": [
"Note 1105 unique index f of t1 is selected since the path only has point ranges with double scan"
]
},
{
"SQL": "replace into t3 select a, b, c from t1 where a = 3",
"Plan": [
"Insert_1 N/A N/A root N/A",
"└─Point_Get_7 1.00 6.27 root table:t1 handle:3"
],
"Warnings": [
"Note 1105 handle of t1 is selected since the path only has point ranges"
]
}
]
},
{
"Name": "TestOutputSkylinePruningInfo",
"Cases": [
{
"SQL": "select * from t where a > 1 order by f",
"Plan": [
"IndexLookUp_14 3333.33 139413.67 root ",
"├─Selection_13(Build) 3333.33 0.00 cop[tikv] gt(test.t.a, 1)",
"│ └─IndexFullScan_11 10000.00 555020.00 cop[tikv] table:t, index:f(f) keep order:true, stats:pseudo",
"└─TableRowIDScan_12(Probe) 3333.33 555020.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [t,f,f_g] remain after pruning paths for t given Prop{SortItems: [{test.t.f asc}], TaskTp: rootTask}"
]
},
{
"SQL": "select * from t where f > 1",
"Plan": [
"TableReader_7 3333.33 88640.22 root data:Selection_6",
"└─Selection_6 3333.33 1140020.00 cop[tikv] gt(test.t.f, 1)",
" └─TableFullScan_5 10000.00 1110020.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [t,f,f_g] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}"
]
},
{
"SQL": "select f from t where f > 1",
"Plan": [
"IndexReader_6 3333.33 11140.22 root index:IndexRangeScan_5",
"└─IndexRangeScan_5 3333.33 140020.00 cop[tikv] table:t, index:f(f) range:(1,+inf], keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [f,f_g] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}"
]
},
{
"SQL": "select * from t where f > 3 and g = 5",
"Plan": [
"IndexLookUp_15 3.33 215.74 root ",
"├─IndexRangeScan_12(Build) 10.00 590.00 cop[tikv] table:t, index:g(g) range:[5,5], keep order:false, stats:pseudo",
"└─Selection_14(Probe) 3.33 0.00 cop[tikv] gt(test.t.f, 3)",
" └─TableRowIDScan_13 10.00 590.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [t,f_g,g] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}"
]
},
{
"SQL": "select * from t where g = 5 order by f",
"Plan": [
"Sort_5 10.00 362.68 root test.t.f",
"└─IndexLookUp_13 10.00 239.01 root ",
" ├─IndexRangeScan_11(Build) 10.00 590.00 cop[tikv] table:t, index:g(g) range:[5,5], keep order:false, stats:pseudo",
" └─TableRowIDScan_12(Probe) 10.00 590.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [t,g] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}"
]
},
{
"SQL": "select * from t where d = 3 order by c, e",
"Plan": [
"IndexLookUp_15 10.00 57230.78 root ",
"├─Selection_14(Build) 10.00 0.00 cop[tikv] eq(test.t.d, 3)",
"│ └─IndexFullScan_12 10000.00 825020.00 cop[tikv] table:t, index:c_d_e(c, d, e) keep order:true, stats:pseudo",
"└─TableRowIDScan_13(Probe) 10.00 825020.00 cop[tikv] table:t keep order:false, stats:pseudo"
],
"Warnings": [
"Note 1105 [t,c_d_e] remain after pruning paths for t given Prop{SortItems: [{test.t.c asc} {test.t.e asc}], TaskTp: rootTask}"
]
}
]
},
{
"Name": "TestPreferRangeScanForUnsignedIntHandle",
"Cases": [
{
"SQL": "set tidb_opt_prefer_range_scan = 0",
"Plan": null,
"Warnings": null
},
{
"SQL": "explain format = 'verbose' select * from t where b > 5",
"Plan": [
"TableReader_7 3.00 19.21 root data:Selection_6",
"└─Selection_6 3.00 215.00 cop[tikv] gt(test.t.b, 5)",
" └─TableFullScan_5 5.00 200.00 cop[tikv] table:t keep order:false"
],
"Warnings": null
},
{
"SQL": "explain format = 'verbose' select * from t where b = 6 order by a limit 1",
"Plan": [
"Limit_11 0.00 14.33 root offset:0, count:1",
"└─TableReader_24 0.00 14.33 root data:Limit_23",
" └─Limit_23 0.00 215.00 cop[tikv] offset:0, count:1",
" └─Selection_22 0.00 215.00 cop[tikv] eq(test.t.b, 6)",
" └─TableFullScan_21 5.00 200.00 cop[tikv] table:t keep order:true"
],
"Warnings": null
},
{
"SQL": "explain format = 'verbose' select * from t where b = 6 limit 1",
"Plan": [
"Limit_8 0.00 14.33 root offset:0, count:1",
"└─TableReader_13 0.00 14.33 root data:Limit_12",
" └─Limit_12 0.00 215.00 cop[tikv] offset:0, count:1",
" └─Selection_11 0.00 215.00 cop[tikv] eq(test.t.b, 6)",
" └─TableFullScan_10 5.00 200.00 cop[tikv] table:t keep order:false"
],
"Warnings": null
},
{
"SQL": "set tidb_opt_prefer_range_scan = 1",
"Plan": null,
"Warnings": null
},
{
"SQL": "explain format = 'verbose' select * from t where b > 5",
"Plan": [
"IndexLookUp_7 3.00 64.81 root ",
"├─IndexRangeScan_5(Build) 3.00 191.00 cop[tikv] table:t, index:idx_b(b) range:(5,+inf], keep order:false",
"└─TableRowIDScan_6(Probe) 3.00 191.00 cop[tikv] table:t keep order:false"
],
"Warnings": [
"Note 1105 [idx_b] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}"
]
},
{
"SQL": "explain format = 'verbose' select * from t where b = 6 order by a limit 1",
"Plan": [
"TopN_9 0.00 19.34 root test.t.a, offset:0, count:1",
"└─IndexLookUp_16 0.00 19.33 root ",
" ├─TopN_15(Build) 0.00 0.00 cop[tikv] test.t.a, offset:0, count:1",
" │ └─IndexRangeScan_13 0.00 20.00 cop[tikv] table:t, index:idx_b(b) range:[6,6], keep order:false",
" └─TableRowIDScan_14(Probe) 0.00 20.00 cop[tikv] table:t keep order:false"
],
"Warnings": [
"Note 1105 [idx_b] remain after pruning paths for t given Prop{SortItems: [], TaskTp: copDoubleReadTask}"
]
},
{
"SQL": "explain format = 'verbose' select * from t where b = 6 limit 1",
"Plan": [
"IndexLookUp_13 0.00 19.33 root limit embedded(offset:0, count:1)",
"├─Limit_12(Build) 0.00 20.00 cop[tikv] offset:0, count:1",
"│ └─IndexRangeScan_10 0.00 20.00 cop[tikv] table:t, index:idx_b(b) range:[6,6], keep order:false",
"└─TableRowIDScan_11(Probe) 0.00 20.00 cop[tikv] table:t keep order:false"
],
"Warnings": [
"Note 1105 [idx_b] remain after pruning paths for t given Prop{SortItems: [], TaskTp: copDoubleReadTask}"
]
}
]
},
{
"Name": "TestIssue27083",
"Cases": [
{
"SQL": "select * from t use index (idx_b) where b = 2 limit 1",
"Plan": [
"IndexLookUp 1.00 root limit embedded(offset:0, count:1)",
"├─Limit(Build) 1.00 cop[tikv] offset:0, count:1",
"│ └─IndexRangeScan 1.00 cop[tikv] table:t, index:idx_b(b) range:[2,2], keep order:false",
"└─TableRowIDScan(Probe) 1.00 cop[tikv] table:t keep order:false"
]
}
]
},
{
"Name": "TestGroupBySetVar",
"Cases": [
{
"SQL": "select floor(dt.rn/2) rownum, count(c1) from (select @rownum := @rownum + 1 rn, c1 from (select @rownum := -1) drn, t1) dt group by floor(dt.rn/2) order by rownum;",
"Plan": [
"Sort 1.00 root Column#6",
"└─Projection 1.00 root floor(div(cast(Column#4, decimal(20,0) BINARY), 2))->Column#6, Column#5",
" └─HashAgg 1.00 root group by:Column#13, funcs:count(Column#11)->Column#5, funcs:firstrow(Column#12)->Column#4",
" └─Projection 10000.00 root test.t1.c1, Column#4, floor(div(cast(Column#4, decimal(20,0) BINARY), 2))->Column#13",
" └─Projection 10000.00 root setvar(rownum, plus(getvar(rownum), 1))->Column#4, test.t1.c1",
" └─HashJoin 10000.00 root CARTESIAN inner join",
" ├─Projection(Build) 1.00 root setvar(rownum, -1)->Column#1",
" │ └─TableDual 1.00 root rows:1",
" └─TableReader(Probe) 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
]
},
{
"SQL": "select @n:=@n+1 as e from ta group by e",
"Plan": [
"Projection 1.00 root setvar(n, plus(getvar(n), 1))->Column#4",
"└─HashAgg 1.00 root group by:Column#8, funcs:firstrow(1)->Column#7",
" └─Projection 10000.00 root setvar(n, plus(cast(getvar(n), double BINARY), 1))->Column#8",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
},
{
"SQL": "select @n:=@n+a as e from ta group by e",
"Plan": [
"Projection 8000.00 root setvar(n, plus(getvar(n), cast(test.ta.a, double BINARY)))->Column#4",
"└─HashAgg 8000.00 root group by:Column#7, funcs:firstrow(Column#6)->test.ta.a",
" └─Projection 10000.00 root test.ta.a, setvar(n, plus(getvar(n), cast(test.ta.a, double BINARY)))->Column#7",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from (select @n:=@n+1 as e from ta) tt group by e",
"Plan": [
"HashAgg 1.00 root group by:Column#4, funcs:firstrow(Column#4)->Column#4",
"└─Projection 10000.00 root setvar(n, plus(getvar(n), 1))->Column#4",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
},
{
"SQL": "select * from (select @n:=@n+a as e from ta) tt group by e",
"Plan": [
"HashAgg 8000.00 root group by:Column#4, funcs:firstrow(Column#4)->Column#4",
"└─Projection 10000.00 root setvar(n, plus(getvar(n), cast(test.ta.a, double BINARY)))->Column#4",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
},
{
"SQL": "select a from ta group by @n:=@n+1",
"Plan": [
"HashAgg 1.00 root group by:Column#5, funcs:firstrow(Column#4)->test.ta.a",
"└─Projection 10000.00 root test.ta.a, setvar(n, plus(getvar(n), 1))->Column#5",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
},
{
"SQL": "select a from ta group by @n:=@n+a",
"Plan": [
"HashAgg 8000.00 root group by:Column#5, funcs:firstrow(Column#4)->test.ta.a",
"└─Projection 10000.00 root test.ta.a, setvar(n, plus(getvar(n), cast(test.ta.a, double BINARY)))->Column#5",
" └─TableReader 10000.00 root data:TableFullScan",
" └─TableFullScan 10000.00 cop[tikv] table:ta keep order:false, stats:pseudo"
]
}
]
},
{
"Name": "TestIssue30200",
"Cases": [
{
"SQL": "select /*+ use_index_merge(t1) */ 1 from t1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c1)) = 'ab';",
"Plan": [
"Projection 17.99 root 1->Column#5",
"└─IndexMerge 0.04 root ",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c1(c1) range:[\"de\",\"de\"], keep order:false, stats:pseudo",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c2(c2) range:[\"10\",\"10\"], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.04 cop[tikv] or(eq(test.t1.c1, \"de\"), and(eq(test.t1.c2, \"10\"), eq(from_base64(to_base64(test.t1.c1)), \"ab\")))",
" └─TableRowIDScan 19.99 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select /*+ use_index_merge(t1) */ 1 from t1 where c1 = 'ab' or c2 = '10' and char_length(left(c1, 10)) = 10;",
"Plan": [
"Projection 17.99 root 1->Column#5",
"└─IndexMerge 0.04 root ",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c1(c1) range:[\"ab\",\"ab\"], keep order:false, stats:pseudo",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c2(c2) range:[\"10\",\"10\"], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.04 cop[tikv] or(eq(test.t1.c1, \"ab\"), and(eq(test.t1.c2, \"10\"), eq(char_length(left(test.t1.c1, 10)), 10)))",
" └─TableRowIDScan 19.99 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select /*+ use_index_merge(tt1) */ 1 from tt1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c3)) = '10';",
"Plan": [
"Projection 17.99 root 1->Column#6",
"└─IndexMerge 17.99 root ",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:tt1, index:idx_0(c1) range:[\"de\",\"de\"], keep order:false, stats:pseudo",
" ├─Selection(Build) 8.00 cop[tikv] eq(from_base64(to_base64(test.tt1.c3)), \"10\")",
" │ └─IndexRangeScan 10.00 cop[tikv] table:tt1, index:idx_1(c2, c3) range:[\"10\",\"10\"], keep order:false, stats:pseudo",
" └─TableRowIDScan(Probe) 17.99 cop[tikv] table:tt1 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select /*+ use_index_merge( tt2 ) */ 1 from tt2 where tt2.c1 in (-3896405) or tt2.pk in (1, 53330) and to_base64(left(pk, 5));",
"Plan": [
"Projection 2.60 root 1->Column#3",
"└─IndexMerge 0.00 root ",
" ├─IndexRangeScan(Build) 1.00 cop[tikv] table:tt2, index:c1(c1) range:[-3896405,-3896405], keep order:false, stats:pseudo",
" ├─Selection(Build) 1.60 cop[tikv] istrue_with_null(cast(to_base64(left(cast(test.tt2.pk, var_string(20)), 5)), double BINARY))",
" │ └─TableRangeScan 2.00 cop[tikv] table:tt2 range:[1,1], [53330,53330], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.00 cop[tikv] or(eq(test.tt2.c1, -3896405), and(in(test.tt2.pk, 1, 53330), istrue_with_null(cast(to_base64(left(cast(test.tt2.pk, var_string(20)), 5)), double BINARY))))",
" └─TableRowIDScan 3.00 cop[tikv] table:tt2 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select /*+ use_index_merge(tt3) */ 1 from tt3 where c1 < -10 or c2 < 10 and reverse(c3) = '2';",
"Plan": [
"Projection 5098.44 root 1->Column#5",
"└─Selection 2825.66 root or(lt(test.tt3.c1, -10), and(lt(test.tt3.c2, 10), eq(reverse(cast(test.tt3.c3, var_string(20))), \"2\")))",
" └─IndexMerge 5542.21 root ",
" ├─IndexRangeScan(Build) 3323.33 cop[tikv] table:tt3, index:c1(c1) range:[-inf,-10), keep order:false, stats:pseudo",
" ├─IndexRangeScan(Build) 3323.33 cop[tikv] table:tt3, index:c2(c2) range:[-inf,10), keep order:false, stats:pseudo",
" └─TableRowIDScan(Probe) 5542.21 cop[tikv] table:tt3 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
},
{
"SQL": "select 1 from t1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c1)) = 'ab';",
"Plan": [
"Projection 17.99 root 1->Column#5",
"└─IndexMerge 0.04 root ",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c1(c1) range:[\"de\",\"de\"], keep order:false, stats:pseudo",
" ├─IndexRangeScan(Build) 10.00 cop[tikv] table:t1, index:c2(c2) range:[\"10\",\"10\"], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.04 cop[tikv] or(eq(test.t1.c1, \"de\"), and(eq(test.t1.c2, \"10\"), eq(from_base64(to_base64(test.t1.c1)), \"ab\")))",
" └─TableRowIDScan 19.99 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"1"
]
}
]
},
{
"Name": "TestIndexMergeWithCorrelatedColumns",
"Cases": [
{
"SQL": "select * from t2 where c1 < all(select /*+ use_index_merge(t1) */ c1 from t1 where (c1 = 10 and c1 = t2.c3 or c2 = 1 and c2 = t2.c3) and substring(c3, 10)) order by c1;",
"Plan": [
"Sort 10000.00 root test.t2.c1",
"└─Projection 10000.00 root test.t2.c1, test.t2.c2, test.t2.c3",
" └─Apply 10000.00 root CARTESIAN inner join, other cond:or(and(lt(test.t2.c1, Column#8), if(ne(Column#9, 0), NULL, 1)), or(eq(Column#10, 0), if(isnull(test.t2.c1), NULL, 0)))",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─StreamAgg(Probe) 1.00 root funcs:min(test.t1.c1)->Column#8, funcs:sum(0)->Column#9, funcs:count(1)->Column#10",
" └─IndexMerge 0.01 root ",
" ├─Selection(Build) 1.00 cop[tikv] eq(10, test.t2.c3)",
" │ └─TableRangeScan 1.00 cop[tikv] table:t1 range:[10,10], keep order:false, stats:pseudo",
" ├─Selection(Build) 8.00 cop[tikv] eq(1, test.t2.c3)",
" │ └─IndexRangeScan 10.00 cop[tikv] table:t1, index:c2(c2) range:[1,1], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.01 cop[tikv] or(and(eq(test.t1.c1, 10), eq(10, test.t2.c3)), and(eq(test.t1.c2, 1), eq(1, test.t2.c3))), substring(cast(test.t1.c3, var_string(20)), 10)",
" └─TableRowIDScan 9.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"1 1 1",
"2 2 2"
]
},
{
"SQL": "select * from t2 where c1 < all(select /*+ use_index_merge(t1) */ c1 from t1 where (c1 = 10 and c1 = t2.c3 or c2 = 1 and c2 = t2.c3) and reverse(c3)) order by c1;",
"Plan": [
"Sort 10000.00 root test.t2.c1",
"└─Projection 10000.00 root test.t2.c1, test.t2.c2, test.t2.c3",
" └─Apply 10000.00 root CARTESIAN inner join, other cond:or(and(lt(test.t2.c1, Column#8), if(ne(Column#9, 0), NULL, 1)), or(eq(Column#10, 0), if(isnull(test.t2.c1), NULL, 0)))",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─StreamAgg(Probe) 1.00 root funcs:min(test.t1.c1)->Column#8, funcs:sum(0)->Column#9, funcs:count(1)->Column#10",
" └─IndexMerge 0.01 root ",
" ├─Selection(Build) 1.00 cop[tikv] eq(10, test.t2.c3)",
" │ └─TableRangeScan 1.00 cop[tikv] table:t1 range:[10,10], keep order:false, stats:pseudo",
" ├─Selection(Build) 8.00 cop[tikv] eq(1, test.t2.c3)",
" │ └─IndexRangeScan 10.00 cop[tikv] table:t1, index:c2(c2) range:[1,1], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.01 cop[tikv] or(and(eq(test.t1.c1, 10), eq(10, test.t2.c3)), and(eq(test.t1.c2, 1), eq(1, test.t2.c3))), reverse(cast(test.t1.c3, var_string(20)))",
" └─TableRowIDScan 9.00 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"2 2 2"
]
},
{
"SQL": "select * from t2 where c1 < all(select /*+ use_index_merge(t1) */ c1 from t1 where (c1 >= 10 and c1 = t2.c3 or c2 = 1 and c2 = t2.c3) and substring(c3, 10)) order by c1;",
"Plan": [
"Sort 10000.00 root test.t2.c1",
"└─Projection 10000.00 root test.t2.c1, test.t2.c2, test.t2.c3",
" └─Apply 10000.00 root CARTESIAN inner join, other cond:or(and(lt(test.t2.c1, Column#8), if(ne(Column#9, 0), NULL, 1)), or(eq(Column#10, 0), if(isnull(test.t2.c1), NULL, 0)))",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:t2 keep order:false, stats:pseudo",
" └─StreamAgg(Probe) 1.00 root funcs:min(test.t1.c1)->Column#8, funcs:sum(0)->Column#9, funcs:count(1)->Column#10",
" └─IndexMerge 3.03 root ",
" ├─Selection(Build) 3.33 cop[tikv] eq(test.t1.c1, test.t2.c3)",
" │ └─TableRangeScan 3333.33 cop[tikv] table:t1 range:[10,+inf], keep order:false, stats:pseudo",
" ├─Selection(Build) 8.00 cop[tikv] eq(1, test.t2.c3)",
" │ └─IndexRangeScan 10.00 cop[tikv] table:t1, index:c2(c2) range:[1,1], keep order:false, stats:pseudo",
" └─Selection(Probe) 3.03 cop[tikv] or(and(ge(test.t1.c1, 10), eq(test.t1.c1, test.t2.c3)), and(eq(test.t1.c2, 1), eq(1, test.t2.c3))), substring(cast(test.t1.c3, var_string(20)), 10)",
" └─TableRowIDScan 3338.67 cop[tikv] table:t1 keep order:false, stats:pseudo"
],
"Res": [
"1 1 1",
"2 2 2"
]
},
{
"SQL": "select c_int from tt1 where c_decimal < all (select /*+ use_index_merge(tt2) */ c_decimal from tt2 where tt1.c_int = tt2.c_int and tt1.c_datetime > tt2.c_datetime and tt2.c_decimal = 9.060 or tt2.c_str <= 'interesting shtern' and tt1.c_int = tt2.c_int) order by 1;",
"Plan": [
"Projection 10000.00 root test.tt1.c_int",
"└─Apply 10000.00 root CARTESIAN inner join, other cond:or(and(lt(test.tt1.c_decimal, Column#9), if(ne(Column#10, 0), NULL, 1)), or(eq(Column#11, 0), if(isnull(test.tt1.c_decimal), NULL, 0)))",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:tt1 keep order:true, stats:pseudo",
" └─StreamAgg(Probe) 1.00 root funcs:min(Column#14)->Column#9, funcs:sum(Column#15)->Column#10, funcs:count(1)->Column#11",
" └─Projection 0.00 root test.tt2.c_decimal, cast(isnull(test.tt2.c_decimal), decimal(20,0) BINARY)->Column#15",
" └─IndexMerge 0.00 root ",
" ├─Selection(Build) 0.00 cop[tikv] eq(test.tt1.c_int, test.tt2.c_int)",
" │ └─IndexRangeScan 1.00 cop[tikv] table:tt2, index:c_decimal(c_decimal) range:[9.060000,9.060000], keep order:false, stats:pseudo",
" ├─Selection(Build) 3.32 cop[tikv] eq(test.tt1.c_int, test.tt2.c_int)",
" │ └─IndexRangeScan 3323.33 cop[tikv] table:tt2, index:c_str(c_str) range:[-inf,\"interesting shtern\"], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.00 cop[tikv] or(and(eq(test.tt1.c_int, test.tt2.c_int), and(gt(test.tt1.c_datetime, test.tt2.c_datetime), eq(test.tt2.c_decimal, 9.060))), and(le(test.tt2.c_str, \"interesting shtern\"), eq(test.tt1.c_int, test.tt2.c_int)))",
" └─TableRowIDScan 3.32 cop[tikv] table:tt2 keep order:false, stats:pseudo"
],
"Res": [
"7",
"8",
"10"
]
},
{
"SQL": "select c_int from tt1 where c_decimal > all (select /*+ use_index_merge(tt2) */ c_decimal from tt2 where tt2.c_int = 7 and tt2.c_int < tt1.c_decimal or tt2.c_str >= 'zzzzzzzzzzzzzzzzzzz' and tt1.c_int = tt2.c_int) order by 1;",
"Plan": [
"Projection 10000.00 root test.tt1.c_int",
"└─Apply 10000.00 root CARTESIAN inner join, other cond:or(and(gt(test.tt1.c_decimal, Column#9), if(ne(Column#10, 0), NULL, 1)), or(eq(Column#11, 0), if(isnull(test.tt1.c_decimal), NULL, 0)))",
" ├─TableReader(Build) 10000.00 root data:TableFullScan",
" │ └─TableFullScan 10000.00 cop[tikv] table:tt1 keep order:true, stats:pseudo",
" └─StreamAgg(Probe) 1.00 root funcs:max(Column#14)->Column#9, funcs:sum(Column#15)->Column#10, funcs:count(1)->Column#11",
" └─Projection 0.00 root test.tt2.c_decimal, cast(isnull(test.tt2.c_decimal), decimal(20,0) BINARY)->Column#15",
" └─IndexMerge 0.00 root ",
" ├─Selection(Build) 1.00 cop[tikv] lt(7, test.tt1.c_decimal)",
" │ └─TableRangeScan 1.00 cop[tikv] table:tt2 range:[7,7], keep order:false, stats:pseudo",
" ├─Selection(Build) 3.33 cop[tikv] eq(test.tt1.c_int, test.tt2.c_int)",
" │ └─IndexRangeScan 3333.33 cop[tikv] table:tt2, index:c_str(c_str) range:[\"zzzzzzzzzzzzzzzzzzz\",+inf], keep order:false, stats:pseudo",
" └─Selection(Probe) 0.00 cop[tikv] or(and(eq(test.tt2.c_int, 7), lt(7, test.tt1.c_decimal)), and(ge(test.tt2.c_str, \"zzzzzzzzzzzzzzzzzzz\"), eq(test.tt1.c_int, test.tt2.c_int)))",
" └─TableRowIDScan 4.33 cop[tikv] table:tt2 keep order:false, stats:pseudo"
],
"Res": [
"6",
"7",
"8",
"9"
]
}
]
}
]
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