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[
{
"Name": "TestHashPartitionPruner",
"Cases": [
{
"SQL": "explain select * from t1 where id = 7 and a = 6",
"Result": [
"Selection_7 0.00 root eq(test_partition.t1.a, 6)",
"└─Point_Get_6 1.00 root table:t1, partition:p7 handle:7"
]
},
{
"SQL": "explain select * from t3 where id = 9 and a = 1",
"Result": [
"Point_Get_1 1.00 root table:t3, partition:p9, index:PRIMARY(id, a) "
]
},
{
"SQL": "explain select * from t2 where id = 9 and a = -110",
"Result": [
"Point_Get_6 1.00 root table:t2, partition:p1, index:PRIMARY(id, a) "
]
},
{
"SQL": "explain select * from t1 where id = -17",
"Result": [
"Point_Get_6 1.00 root table:t1, partition:p7 handle:-17"
]
},
{
"SQL": "explain select * from t2 where id = a and a = b and b = 2",
"Result": [
"TableReader_8 8.00 root data:Selection_7",
"└─Selection_7 8.00 cop[tikv] eq(test_partition.t2.a, test_partition.t2.b), eq(test_partition.t2.b, 2), eq(test_partition.t2.id, test_partition.t2.a)",
" └─TableFullScan_6 10000.00 cop[tikv] table:t2, partition:p4 keep order:false, stats:pseudo"
]
},
{
"SQL": "explain select * from t1 join t2 on (t1.id = t2.id) where t1.id = 5 and t2.a = 7",
"Result": [
"HashJoin_10 1.00 root CARTESIAN inner join",
"├─Point_Get_13(Build) 1.00 root table:t2, partition:p2, index:PRIMARY(id, a) ",
"└─Point_Get_12(Probe) 1.00 root table:t1, partition:p5 handle:5"
]
},
{
"SQL": "explain select * from t1 left join t2 on t1.id = 1 and t2.a = 2 where t2.id = 7",
"Result": [
"HashJoin_9 1.00 root CARTESIAN inner join",
"├─Point_Get_12(Build) 1.00 root table:t2, partition:p9, index:PRIMARY(id, a) ",
"└─Point_Get_11(Probe) 1.00 root table:t1, partition:p1 handle:1"
]
},
{
"SQL": "explain select * from t2 join t1 on t1.id = t2.id and t2.a = t1.id and t2.id = 12",
"Result": [
"HashJoin_9 1.00 root CARTESIAN inner join",
"├─Point_Get_12(Build) 1.00 root table:t1, partition:p2 handle:12",
"└─Point_Get_11(Probe) 1.00 root table:t2, partition:p4, index:PRIMARY(id, a) "
]
},
{
"SQL": "explain select * from t1 left join t2 on true where t1.a = 1 and false",
"Result": [
"TableDual_8 0.00 root rows:0"
]
},
{
"SQL": "explain select * from t1 left join t2 on true where t1.a = 1 and null",
"Result": [
"TableDual_8 0.00 root rows:0"
]
},
{
"SQL": "explain select * from t1 left join t2 on true where t1.a = null",
"Result": [
"TableDual_8 0.00 root rows:0"
]
},
{
"SQL": "explain select * from t4 where d = '2019-10-07 10:40:00' and a = 1",
"Result": [
"Point_Get_6 1.00 root table:t4, partition:p9, index:PRIMARY(d, a) "
]
},
{
"SQL": "explain select * from t5 where d = '2019-10-07'",
"Result": [
"IndexLookUp_11 10.00 root ",
"├─IndexRangeScan_9(Build) 10.00 cop[tikv] table:t5, partition:p0, index:PRIMARY(d, a) range:[2019-10-07,2019-10-07], keep order:false, stats:pseudo",
"└─TableRowIDScan_10(Probe) 10.00 cop[tikv] table:t5, partition:p0 keep order:false, stats:pseudo"
]
},
{
"SQL": "explain select * from t6 where a is null",
"Result": [
"TableReader_8 10.00 root data:Selection_7",
"└─Selection_7 10.00 cop[tikv] isnull(test_partition.t6.a)",
" └─TableFullScan_6 10000.00 cop[tikv] table:t6, partition:p0 keep order:false, stats:pseudo"
]
},
{
"SQL": "explain select * from t6 where b is null",
"Result": [
"PartitionUnion_9 30.00 root ",
"├─TableReader_12 10.00 root data:Selection_11",
"│ └─Selection_11 10.00 cop[tikv] isnull(test_partition.t6.b)",
"│ └─TableFullScan_10 10000.00 cop[tikv] table:t6, partition:p0 keep order:false, stats:pseudo",
"├─TableReader_15 10.00 root data:Selection_14",
"│ └─Selection_14 10.00 cop[tikv] isnull(test_partition.t6.b)",
"│ └─TableFullScan_13 10000.00 cop[tikv] table:t6, partition:p1 keep order:false, stats:pseudo",
"└─TableReader_18 10.00 root data:Selection_17",
" └─Selection_17 10.00 cop[tikv] isnull(test_partition.t6.b)",
" └─TableFullScan_16 10000.00 cop[tikv] table:t6, partition:p2 keep order:false, stats:pseudo"
]
},
{
"SQL": "explain select * from t5 where d is null",
"Result": [
"TableDual_6 0.00 root rows:0"
]
},
{
"SQL": "explain select * from t7 where b = -3 and a is null",
"Result": [
"TableReader_8 0.01 root data:Selection_7",
"└─Selection_7 0.01 cop[tikv] eq(test_partition.t7.b, -3), isnull(test_partition.t7.a)",
" └─TableFullScan_6 10000.00 cop[tikv] table:t7, partition:p0 keep order:false, stats:pseudo"
]
}
]
}
]