1247 lines
82 KiB
JSON
1247 lines
82 KiB
JSON
[
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{
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"name": "TestPushLimitDownIndexLookUpReader",
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"cases": [
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// Limit should be pushed down into IndexLookUpReader, row count of IndexLookUpReader and TableScan should be 1.00.
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"explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 limit 2,1",
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// Projection atop IndexLookUpReader, Limit should be pushed down into IndexLookUpReader, and Projection should have row count 1.00 as well.
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"explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 order by b desc limit 2,1",
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// Limit should be pushed down into IndexLookUpReader when Selection on top of IndexScan.
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"explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 and c > 1 limit 2,1",
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// Limit should NOT be pushed down into IndexLookUpReader when Selection on top of TableScan.
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"explain format = 'brief' select * from tbl use index(idx_b_c) where b > 1 and a > 1 limit 2,1"
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]
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},
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{
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"name": "TestIsFromUnixtimeNullRejective",
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"cases": [
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// fix #12385
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"explain format = 'brief' select * from t t1 left join t t2 on t1.a=t2.a where from_unixtime(t2.b);"
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]
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},
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{
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"name": "TestAggColumnPrune",
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"cases": [
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"select count(1) from t join (select count(1) from t where false) as tmp",
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"select count(1) from t join (select max(a) from t where false) as tmp",
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"select count(1) from t join (select min(a) from t where false) as tmp",
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"select count(1) from t join (select sum(a) from t where false) as tmp",
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"select count(1) from t join (select avg(a) from t where false) as tmp",
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"select count(1) from t join (select count(1) from t where false group by a) as tmp",
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"select count(1) from t join (select max(a) from t where false group by a) as tmp",
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"select count(1) from t join (select min(a) from t where false group by a) as tmp",
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"select count(1) from t join (select sum(a) from t where false group by a) as tmp",
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"select count(1) from t join (select avg(a) from t where false group by a) as tmp",
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"SELECT avg(2) FROM(SELECT min(c) FROM t JOIN(SELECT 1 c) d ORDER BY a) e"
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]
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},
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{
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"name": "TestIndexJoinInnerIndexNDV",
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"cases": [
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// t2 should use idx2 instead of idx1, since idx2 has larger NDV.
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"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"
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]
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},
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{
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"name": "TestSimplifyOuterJoinWithCast",
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"cases": [
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// LeftOuterJoin should no be simplified to InnerJoin.
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"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'"
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]
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},
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{
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"name": "TestMaxMinEliminate",
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"cases": [
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"explain format = 'brief' (select max(a) from t) union (select min(a) from t)",
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"explain format = 'brief' select min(a), max(a) from cluster_index_t",
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"explain format = 'brief' select min(b), max(b) from cluster_index_t where a = 1",
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"explain format = 'brief' select min(a), max(a) from cluster_index_t where b = 1",
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"explain format = 'brief' select min(b), max(b) from cluster_index_t where b = 1"
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]
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},
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{
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"name": "TestIndexJoinUniqueCompositeIndex",
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"cases": [
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// Row count of IndexScan should be 2.
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"explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c = t2.c",
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// Row count of IndexScan should be 2.
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"explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t1.c <= t2.b",
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// Row count of IndexScan should be 1.
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"explain format = 'brief' select /*+ TIDB_INLJ(t2) */ * from t1 join t2 on t1.a = t2.a and t2.b = 1"
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]
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},
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{
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"name": "TestPartitionTableStats",
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"cases": [
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"explain format = 'brief' select * from t order by a",
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"select * from t order by a",
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"explain format = 'brief' select * from t order by a limit 3",
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"select * from t order by a limit 3"
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]
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},
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{
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"name": "TestIndexMerge",
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"cases": [
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"explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, b) */ * from t where a = 1 or b = 2",
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"explain format = 'brief' select /*+ USE_INDEX_MERGE(t, A, B) */ * from t where a = 1 or b = 2",
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"explain format = 'brief' select /*+ USE_INDEX_MERGE(t, primary) */ * from t where 1 or t.c",
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"explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, b, c) */ * from t where 1 or t.a = 1 or t.b = 2"
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]
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},
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{
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"name": "TestIndexMergeHint4CNF",
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"cases": [
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"explain format = 'brief' select * from t where b = 1 and (a = 1 or c = 1)",
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"explain format = 'brief' select /*+ USE_INDEX_MERGE(t, a, c) */ * from t where b = 1 and (a = 1 or c = 1)"
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]
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},
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{
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"name": "TestSubqueryWithTopN",
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"cases": [
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"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)",
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"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",
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"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"
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]
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},
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{
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"name": "TestIndexJoinTableRange",
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"cases": [
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"desc format = 'brief' select /*+ TIDB_INLJ(t2)*/ * from t1, t2 where t1.a = t2.a and t1.b = t2.b",
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"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",
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"desc format = 'brief' select /*+ INL_JOIN(t4) */ * from t3 join t4 on t3.a = t4.a where t4.b = 1",
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"desc format = 'brief' select /*+ INL_JOIN(t4) */ * from t3 join t4 on t3.b = t4.b where t4.a = 1"
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]
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},
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{
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"name": "TestHintWithRequiredProperty",
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"cases": [
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"desc format = 'brief' select /*+ INL_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.b order by t2.a",
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"desc format = 'brief' select /*+ INL_HASH_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.b order by t2.a",
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"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",
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"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",
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"desc format = 'brief' select /*+ INL_HASH_JOIN(t2) */ distinct t2.a from t t1 join t t2 on t1.a = t2.a",
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// This hint cannot work, so choose another plan.
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"desc format = 'brief' select /*+ INL_JOIN(t2) */ * from t t1, t t2 where t1.a = t2.c order by t1.a"
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]
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},
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{
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"name": "TestIndexHintWarning",
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"cases": [
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"select /*+ USE_INDEX(t1, j) */ * from t1",
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"select /*+ IGNORE_INDEX(t1, j) */ * from t1",
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"select /*+ USE_INDEX(t2, a, b, c) */ * from t1",
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"select /*+ USE_INDEX(t2) */ * from t1",
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"select /*+ USE_INDEX(t1, a), USE_INDEX(t2, a), USE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
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"select /*+ USE_INDEX(t3, a), USE_INDEX(t4, b), IGNORE_INDEX(t3, a) */ * from t1, t2 where t1.a=t2.a",
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"select /*+ USE_INDEX_MERGE(t3, a, b, d) */ * from t1",
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"select /*+ USE_INDEX_MERGE(t1, a, b, c, d) */ * from t1",
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"select /*+ USE_INDEX_MERGE(t1, a, b), USE_INDEX(t1, a) */ * from t1",
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"select /*+ USE_INDEX_MERGE(t1, a, b), IGNORE_INDEX(t1, a) */ * from t1",
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"select /*+ USE_INDEX_MERGE(t1, primary, a, b, c) */ * from t1"
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]
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},
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{
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"name": "TestHintWithoutTableWarning",
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"cases": [
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"select /*+ TIDB_SMJ() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ INL_JOIN() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ TIDB_INLJ() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ INL_HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ INL_MERGE_JOIN() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ HASH_JOIN() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ USE_INDEX() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ IGNORE_INDEX() */ * from t1, t2 where t1.a=t2.a",
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"select /*+ USE_INDEX_MERGE() */ * from t1, t2 where t1.a=t2.a"
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]
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},
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{
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"name": "TestPartitionPruningForInExpr",
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"cases": [
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"explain format = 'brief' select * from t where a in (1, 2,'11')",
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"explain format = 'brief' select * from t where a in (17, null)",
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"explain format = 'brief' select * from t where a in (16, 'abc')",
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"explain format = 'brief' select * from t where a in (15, 0.12, 3.47)",
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"explain format = 'brief' select * from t where a in (0.12, 3.47)",
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"explain format = 'brief' select * from t where a in (14, floor(3.47))",
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"explain format = 'brief' select * from t where b in (3, 4)"
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]
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},
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{
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"name": "TestStreamAggProp",
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"cases": [
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"select /*+ stream_agg() */ count(*) c from t group by a order by c limit 1",
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"select /*+ stream_agg() */ count(*) c from t group by a order by c",
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"select /*+ stream_agg() */ count(*) c from t group by a order by a limit 1",
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"select /*+ stream_agg() */ count(*) c from t group by a order by a"
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]
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},
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{
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"name": "TestOptimizeHintOnPartitionTable",
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"cases": [
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"select /*+ use_index(t) */ * from t",
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"select /*+ use_index(t partition(p0, p1) b, c) */ * from t partition(p1,p2)",
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"select /*+ use_index(t partition(p_non_exist)) */ * from t partition(p1,p2)",
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"select /*+ use_index(t partition(p0, p1) b, c) */ * from t",
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"select /*+ ignore_index(t partition(p0, p1) b, c) */ * from t",
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"select /*+ hash_join(t1, t2 partition(p0)) */ * from t t1 join t t2 on t1.a = t2.a",
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"select /*+ use_index_merge(t partition(p0)) */ * from t where t.b = 1 or t.c = \"8\"",
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"select /*+ use_index_merge(t partition(p0, p1) primary, b) */ * from t where t.a = 1 or t.b = 2",
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"select /*+ use_index(t partition(p0) b) */ * from t partition(p0, p1)"
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]
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},
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{
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"name": "TestAccessPathOnClusterIndex",
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"cases": [
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"select * from t1",
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"select * from t1 where t1.a >= 1 and t1.a < 4",
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"select * from t1 where t1.a = 1 and t1.b < \"333\"",
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"select t1.a, t1.b, t1.c from t1 where t1.c = 3.3",
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"select t1.b, t1.c from t1 where t1.c = 2.2",
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"select /*+ use_index(t1, c) */ * from t1",
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"select * from t1 use index(c) where t1.c in (2.2, 3.3)",
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"select * from t1 where t1.a = 1 order by b",
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"select * from t1 order by a, b limit 1",
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"select /*+ use_index_merge(t1 primary, c) */ * from t1 where t1.a >= 1 or t1.c = 2.2",
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"select /*+ use_index_merge(t1 primary, c) */ * from t1 where t1.a = 1 and t1.b = '111' or t1.c = 3.3"
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]
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},
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{
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"name": "TestIndexJoinOnClusteredIndex",
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"cases": [
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"select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
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"select /*+ inl_merge_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
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"select /*+ inl_hash_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a",
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"select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.a = t2.a and t1.b = t2.b",
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"select /*+ inl_join(t1, t2) */ * from t t1 join t t2 on t1.c = t2.c",
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"select /*+ inl_merge_join(t1,t2) */ t2.a, t2.c, t2.d from t t1 left join t t2 on t1.a = t2.c;"
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]
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},
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{
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"name": "TestPartitionExplain",
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"cases": [
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// Table reader
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"select * from pt where c > 10",
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"select * from pt where c > 8",
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"select * from pt where c < 2 or c >= 9",
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// Index reader
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"select c from pt",
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"select c from pt where c > 10",
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"select c from pt where c > 8",
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"select c from pt where c < 2 or c >= 9",
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// Index Lookup
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"select /*+ use_index(pt, i_id) */ * from pt",
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"select /*+ use_index(pt, i_id) */ * from pt where id < 4 and c > 10",
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"select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c > 8",
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"select /*+ use_index(pt, i_id) */ * from pt where id < 10 and c < 2 or c >= 9",
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// Partition selection
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"select * from pt partition (p0) where c > 8",
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"select c from pt partition (p0, p2) where c > 8",
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"select /*+ use_index(pt, i_id) */ * from pt partition (p1, p2) where c < 3 and id = 5",
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// Index Merge
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"select * from pt where id = 4 or c < 7",
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"select * from pt where id > 4 or c = 7"
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]
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},
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{
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"name": "TestInvalidHint",
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"cases": [
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"explain format = 'brief' select /*+ use_index_merge(tt) */ * from tt where a=10 or a=20;",
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"explain format = 'brief' select /*+ use_index_merge(tt) */ * from tt where a=15 or (a < 10 or a > 20);"
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]
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},
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{
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"name": "TestApproxPercentile",
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"cases": [
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"select approx_percentile(a, 50) from t",
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"select approx_percentile(a, 10) from t",
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"select approx_percentile(a, 10+70) from t",
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"select approx_percentile(a, 10*10) from t",
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"select approx_percentile(a, 50) from t group by b order by b"
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]
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},
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{
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"name": "TestConvertRangeToPoint",
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"cases": [
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"explain format = 'brief' select * from t0 where a > 1 and a < 3 order by b limit 2",
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"explain format = 'brief' select * from t1 where a >= 2 and a <= 2 and b = 2 and c > 2",
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"explain format = 'brief' select * from t2 where a >= 2.5 and a <= 2.5 order by b limit 2",
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"explain format = 'brief' select * from t3 where a >= 'a' and a <= 'a' and b = 'b' and c > 'c'"
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]
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},
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{
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"name": "TestIssue22105",
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"cases": [
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"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)"
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]
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},
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{
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"name": "TestReorderSimplifiedOuterJoins",
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"cases": [
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// Query with INNER JOIN or LEFT JOIN should have the same plan.
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"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'",
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"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'"
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]
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},
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{
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"name": "TestDecorrelateInnerJoinInSubquery",
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"cases": [
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// Query with WHERE or ON should have the same plan, i.e, the Apply has been decorrelated.
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"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)",
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"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)",
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"explain format = 'brief' select * from t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from t t1 join t t2 where t1.a = t2.a and t1.a = t.a)",
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"explain format = 'brief' select * from t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from t t1 join t t2 on t1.a = t2.a and t1.a = t.a)",
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"explain format = 'brief' select /*+ hash_join_build(t) */ * from t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from t t1 join t t2 where t1.a = t2.a and t1.a = t.a)",
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"explain format = 'brief' select /*+ hash_join_probe(t) */ * from t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from t t1 join t t2 where t1.a = t2.a and t1.a = t.a)"
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]
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},
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{
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"name": "TestDecorrelateLimitInSubquery",
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"cases": [
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// Query with EXISTS and subquery with LIMIT should have the same plan, i.e, the Limit has been decorrelated.
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"explain format = 'brief' select count(*) from test t1 where exists (select value from test t2 where t1.id = t2.id limit 1)",
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"explain format = 'brief' select count(*) from test t1 where exists (select value from test t2 where t1.id = t2.id)",
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"explain format = 'brief' select count(*) from test t1 where exists (select value from test t2 where t1.id = t2.id limit 1,2)",
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"explain format = 'brief' select * from t where 9 in (select c from t s where s.c < t.c limit 3)"
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]
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},
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{
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"name": "TestMultiColMaxOneRow",
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"cases": [
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"select (select c from t2 where t2.a = t1.a and t2.b = 1) from t1",
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"select (select c from t2 where t2.a = t1.a and (t2.b = 1 or t2.b = 2)) from t1"
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]
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},
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{
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"name": "TestIssue24095",
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"cases": [
|
|
"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;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestSequenceAsDataSource",
|
|
"cases": [
|
|
"select 1 from s1",
|
|
"select count(1) from s1",
|
|
"select count(*) from s1",
|
|
"select sum(1) from s1",
|
|
"select count(1) as cnt from s1 union select count(1) as cnt from s2"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIsMatchProp",
|
|
"cases": [
|
|
"select a, b, c from t1 where a > 3 and b = 4 order by a, c",
|
|
"select * from t2 where a = 1 and c = 2 order by b, d",
|
|
"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",
|
|
"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",
|
|
"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"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestHeuristicIndexSelection",
|
|
"cases": [
|
|
"select * from t1 where a = 3 or a = 5",
|
|
"select f, g from t1 where f = 2 and g in (3, 4, 5)",
|
|
"select * from t1 where c = 1 and (d = 2 or d = 3) and e in (4, 5)",
|
|
"select f, g from t1 where f = 2 and g > 3",
|
|
"select a, b, c from t2 where a = 1 and b = 2 and c in (1, 2, 3, 4, 5)",
|
|
"select * from t3 where (a = 1 or a = 3) and b = 'xx'",
|
|
"select * from t4 where (a = 1 or a = 3) and b = 'xx'",
|
|
"select a, b from t3 where (a = 1 or a = 3) and b = 'xx'",
|
|
"select a, b from t4 where (a = 1 or a = 3) and b = 'xx'",
|
|
"update t1 set b = 2 where a = 4 or a = 6",
|
|
"delete from t1 where f = 2 and g in (3, 4)",
|
|
"insert into t3 select a, b, c from t1 where f = 2",
|
|
"replace into t3 select a, b, c from t1 where a = 3"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestOutputSkylinePruningInfo",
|
|
"cases": [
|
|
"select * from t where a > 1 order by f",
|
|
"select * from t where f > 1",
|
|
"select f from t where f > 1",
|
|
"select * from t where f > 3 and g = 5",
|
|
"select * from t where g = 5 order by f",
|
|
"select * from t where d = 3 order by c, e"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPreferRangeScanForUnsignedIntHandle",
|
|
"cases": [
|
|
"set tidb_opt_prefer_range_scan = 0",
|
|
"explain format = 'verbose' select * from t where b > 5",
|
|
"explain format = 'verbose' select * from t where b = 6 order by a limit 1",
|
|
"explain format = 'verbose' select * from t where b = 6 limit 1",
|
|
"set tidb_opt_prefer_range_scan = 1",
|
|
"explain format = 'verbose' select * from t where b > 5",
|
|
"explain format = 'verbose' select * from t where b = 6 order by a limit 1",
|
|
"explain format = 'verbose' select * from t where b = 6 limit 1"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue27083",
|
|
"cases": [
|
|
"select * from t use index (idx_b) where b = 2 limit 1"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestGroupBySetVar",
|
|
"cases": [
|
|
"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;",
|
|
// TODO: fix these two cases
|
|
"select @n:=@n+1 as e from ta group by e",
|
|
"select @n:=@n+a as e from ta group by e",
|
|
"select * from (select @n:=@n+1 as e from ta) tt group by e",
|
|
"select * from (select @n:=@n+a as e from ta) tt group by e",
|
|
"select a from ta group by @n:=@n+1",
|
|
"select a from ta group by @n:=@n+a"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue30200",
|
|
"cases": [
|
|
// to_base64 and from_base64 has not been pushed to TiKV or TiFlash.
|
|
// We expect a Selection will be added above IndexMerge.
|
|
"select /*+ use_index_merge(t1) */ 1 from t1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c1)) = 'ab';",
|
|
|
|
// `left` has not been pushed to TiKV, but it has been pushed to TiFlash.
|
|
// We expect a Selection will be added above IndexMerge.
|
|
"select /*+ use_index_merge(t1) */ 1 from t1 where c1 = 'ab' or c2 = '10' and char_length(left(c1, 10)) = 10;",
|
|
|
|
// c3 is part of idx_1, so it will be put in partial_path's IndexFilters instead of TableFilters.
|
|
// But it still cannot be pushed to TiKV. This case cover code in DataSource.buildIndexMergeOrPath.
|
|
"select /*+ use_index_merge(tt1) */ 1 from tt1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c3)) = '10';",
|
|
|
|
// to_base64(left(pk, 5)) is in partial_path's TableFilters. But it cannot be pushed to TiKV.
|
|
// So it should be executed in TiDB. This case cover code in DataSource.buildIndexMergeOrPath.
|
|
"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));",
|
|
|
|
// This case covert expression index.
|
|
"select /*+ use_index_merge(tt3) */ 1 from tt3 where c1 < -10 or c2 < 10 and reverse(c3) = '2';",
|
|
|
|
// If no hint, we cannot use index merge if filter cannot be pushed to any storage.
|
|
"select 1 from t1 where c1 = 'de' or c2 = '10' and from_base64(to_base64(c1)) = 'ab';"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIndexMergeWithCorrelatedColumns",
|
|
"cases": [
|
|
"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;",
|
|
"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;",
|
|
"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;",
|
|
// Test correlated column in IndexPath.TableFilters.
|
|
"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;",
|
|
// Test correlated column in TablePath.TableFilters.
|
|
"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;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue31240",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from t31240;",
|
|
"set @@tidb_isolation_read_engines=\"tiflash,tidb\";",
|
|
"explain format = 'brief' select count(*) from t31240;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestSelPushDownTiFlash",
|
|
"cases": [
|
|
"explain format = 'brief' select * from t where t.a > 1 and t.b = \"flash\" or t.a + 3 * t.a = 5",
|
|
"explain format = 'brief' select * from t where cast(t.a as double) + 3 = 5.1",
|
|
"explain format = 'brief' select * from t where b > 'a' order by convert(b, unsigned) limit 2",
|
|
"explain format = 'brief' select * from t where b > 'a' order by b limit 2"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestVerboseExplain",
|
|
"cases": [
|
|
"explain format = 'verbose' select count(*) from t3",
|
|
"explain format = 'verbose' select count(*) from t2",
|
|
"explain format = 'verbose' select * from t3 order by a",
|
|
"explain format = 'verbose' select * from t3 order by b",
|
|
"explain format = 'verbose' select * from t3 order by a limit 1",
|
|
"explain format = 'verbose' select * from t3 order by b limit 1",
|
|
"explain format = 'verbose' select count(*) from t2 group by a",
|
|
"explain format = 'verbose' select count(*) from t3 where b = 0",
|
|
"explain format = 'verbose' select /*+ use_index(t3, c) */ count(a) from t3 where b = 0",
|
|
"explain format = 'verbose' select count(*) from t2 where a = 0",
|
|
"explain format = 'verbose' select count(*) from t3 t join t3 on t.a = t3.b",
|
|
"explain format = 'verbose' select /*+ read_from_storage(tiflash[t1, t2]) */ count(*) from t1 join t2 on t1.a = t2.a",
|
|
"explain format = 'verbose' select /*+ read_from_storage(tiflash[t1, t2]) */ count(*) from t1 join t2 on t1.a = t2.a join t3 on t1.b = t3.b",
|
|
"explain format = 'verbose' select (2) in (select /*+ read_from_storage(tiflash[t1]) */ count(*) from t1) from (select t.b < (select /*+ read_from_storage(tiflash[t2]) */ t.b from t2 limit 1 ) from t3 t) t",
|
|
"explain format = 'verbose' select /*+ merge_join(t1), read_from_storage(tiflash[t1, t2]) */ count(*) from t1 join t2 on t1.a = t2.a"
|
|
]
|
|
|
|
},
|
|
{
|
|
"name": "TestRegardNULLAsPoint",
|
|
"cases": [
|
|
"select * from tuk where a<=>null and b=1",
|
|
"select * from tik where a<=>null and b=1",
|
|
"select * from tuk where a<=>null and b>0 and b<2",
|
|
"select * from tik where a<=>null and b>0 and b<2",
|
|
"select * from tuk where a<=>null and b>=1 and b<2",
|
|
"select * from tik where a<=>null and b>=1 and b<2",
|
|
"select * from tuk where a<=>null and b=1 and c=1",
|
|
"select * from tik where a<=>null and b=1 and c=1",
|
|
"select * from tuk where a=1 and b<=>null and c=1",
|
|
"select * from tik where a=1 and b<=>null and c=1",
|
|
"select * from tuk where a<=>null and b<=>null and c=1",
|
|
"select * from tik where a<=>null and b<=>null and c=1",
|
|
"select * from tuk where a<=>null and b<=>null and c<=>null",
|
|
"select * from tik where a<=>null and b<=>null and c<=>null"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownToTiFlashWithKeepOrder",
|
|
"cases": [
|
|
"explain format = 'brief' select max(a) from t",
|
|
"explain format = 'brief' select min(a) from t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownToTiFlashWithKeepOrderInFastMode",
|
|
"cases": [
|
|
"explain format = 'brief' select max(a) from t",
|
|
"explain format = 'brief' select min(a) from t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPJoin",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t where fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t, d2_t, d3_t where fact_t.d1_k = d1_t.d1_k and fact_t.d2_k = d2_t.d2_k and fact_t.d3_k = d3_t.d3_k",
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t where fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col1 > 10",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col2 > 10 and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k and d1_t.value > 10",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k and d1_t.value > 10 and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select 1 from d1_t where d1_k = fact_t.d1_k)",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select 1 from d1_t where d1_k = fact_t.d1_k and value > fact_t.col1)",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from d1_t where d1_k = fact_t.d1_k)",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select /*+ SEMI_JOIN_REWRITE() */ 1 from d1_t where d1_k = fact_t.d1_k and value > fact_t.col1)",
|
|
"explain format = 'brief' select count(*) from fact_t where not exists (select 1 from d1_t where d1_k = fact_t.d1_k)",
|
|
"explain format = 'brief' select count(*) from fact_t where not exists (select 1 from d1_t where d1_k = fact_t.d1_k and value > fact_t.col1)",
|
|
"explain format = 'brief' select count(*) from fact_t join d1_t on fact_t.d1_k > d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k > d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k > d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t where d1_k not in (select d1_k from d1_t)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPLeftSemiJoin",
|
|
"cases": [
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.a in (select a from test.t); -- left semi",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.a in (select a from test.t where b<t1.b); ",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.a not in (select a from test.t); -- left anti",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.a not in (select a from test.t where b<t1.b);",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.b in (select a from test.t); -- cartesian left semi",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.a in (select b from test.t where b<t1.b);",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.b not in (select a from test.t); -- cartesian left anti",
|
|
"explain format = 'brief' select * from test.t t1 where t1.a>1 or t1.b not in (select a from test.t where b<t1.b);",
|
|
"explain format = 'brief' select a in (select a from test.t), a not in (select a from test.t) from test.t; -- semi join as scalar",
|
|
"explain format = 'brief' select a in (select b from test.t), a not in (select b from test.t) from test.t;",
|
|
"explain format = 'brief' select b in (select a from test.t), b not in (select a from test.t) from test.t;",
|
|
"explain format = 'brief' select b in (select b from test.t), b not in (select b from test.t) from test.t;",
|
|
"explain format = 'brief' select a, b, a in (select a from test.t), a in (select b from test.t), b in (select a from test.t), b in (select b from test.t), a not in (select a from test.t), a not in (select b from test.t), b not in (select a from test.t), b not in (select b from test.t) from test.t;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPOuterJoinBuildSideForBroadcastJoin",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from a left join b on a.id = b.id",
|
|
"explain format = 'brief' select count(*) from b right join a on a.id = b.id"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPOuterJoinBuildSideForShuffleJoinWithFixedBuildSide",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from a left join b on a.id = b.id",
|
|
"explain format = 'brief' select count(*) from b right join a on a.id = b.id"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPOuterJoinBuildSideForShuffleJoin",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from a left join b on a.id = b.id",
|
|
"explain format = 'brief' select count(*) from b right join a on a.id = b.id"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPShuffledJoin",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t where fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t, d2_t, d3_t where fact_t.d1_k = d1_t.d1_k and fact_t.d2_k = d2_t.d2_k and fact_t.d3_k = d3_t.d3_k",
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t where fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t, d1_t, d2_t, d3_t where fact_t.d1_k = d1_t.d1_k and fact_t.d1_k = d2_t.value and fact_t.d1_k = d3_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k",
|
|
"explain format = 'brief' select count(*) from fact_t join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col1 > 10",
|
|
"explain format = 'brief' select count(*) from (select case when t1.col1 is null then t2.col1 + 5 else 10 end as col1, t2.d1_k as d1_k from fact_t t1 right join fact_t t2 on t1.d1_k = t2.d1_k) fact_t join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col1 > 5",
|
|
"explain format = 'brief' select count(*) from fact_t left join d1_t on fact_t.d1_k = d1_t.d1_k and fact_t.col2 > 10 and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k and d1_t.value > 10",
|
|
"explain format = 'brief' select count(*) from fact_t right join d1_t on fact_t.d1_k = d1_t.d1_k and d1_t.value > 10 and fact_t.col1 > d1_t.value",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select 1 from d1_t where d1_k = fact_t.d1_k)",
|
|
"explain format = 'brief' select count(*) from fact_t where exists (select 1 from d1_t where d1_k = fact_t.d1_k and value > fact_t.col1)",
|
|
"explain format = 'brief' select count(*) from fact_t where not exists (select 1 from d1_t where d1_k = fact_t.d1_k)",
|
|
"explain format = 'brief' select count(*) from fact_t where not exists (select 1 from d1_t where d1_k = fact_t.d1_k and value > fact_t.col1)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPJoinWithCanNotFoundColumnInSchemaColumnsError",
|
|
"cases": [
|
|
"explain format = 'brief' select v from t3 as a left join (select t1.v1, t1.v2, t1.v1 + t1.v2 as v from t1 left join t2 on t1.v1 = t2.v1 and t1.v2 = t2.v2) b on a.v1 = b.v1 and a.v2 = b.v2",
|
|
"explain format = 'brief' select count(*), t2.v1, t2.v2 from t1 left join t2 on t1.v1 = t2.v1 and t1.v2 = t2.v2 group by t2.v1, t2.v2",
|
|
"explain format = 'brief' select count(*), t2.v1, t2.v2 from t3 left join t2 on t3.v1 = t2.v1 and t3.v2 = t2.v2 group by t2.v1, t2.v2"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestJoinNotSupportedByTiFlash",
|
|
"cases": [
|
|
"explain format = 'brief' select * from table_1 a, table_1 b where a.bit_col = b.bit_col",
|
|
"explain format = 'brief' select * from table_1 a left join table_1 b on a.id = b.id and dayofmonth(a.datetime_col) > 100",
|
|
"explain format = 'brief' select * from table_1 a right join table_1 b on a.id = b.id and dayofmonth(b.datetime_col) > 100",
|
|
"explain format = 'brief' select * from table_1 a join table_1 b on a.id = b.id and dayofmonth(a.datetime_col) > dayofmonth(b.datetime_col)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPWithHashExchangeUnderNewCollation",
|
|
"cases": [
|
|
"explain format = 'brief' select * from table_1 a, table_1 b where a.value = b.value",
|
|
"explain format = 'brief' select * from table_1 a, table_2 b where a.value = b.value",
|
|
"explain format = 'brief' select * from table_1 a, table_2 b, table_1 c where a.value = b.value and b.value = c.value",
|
|
"explain format = 'brief' select * from table_1 a, table_2 b, table_1 c where a.value = b.value and a.value = c.value",
|
|
"explain format = 'brief' select /*+ agg_to_cop() */ count(*), value from table_1 group by value",
|
|
"explain format = 'brief' select /*+ agg_to_cop() */ count(*), value from table_2 group by value"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPWithBroadcastExchangeUnderNewCollation",
|
|
"cases": [
|
|
"explain format = 'brief' select /*+ broadcast_join(a,b) */ * from table_1 a, table_1 b where a.id = b.id",
|
|
"explain format = 'brief' select /*+ broadcast_join(a,b) */ * from table_1 a, table_1 b where a.value = b.value"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMPPAvgRewrite",
|
|
"cases": [
|
|
"explain format = 'brief' select /*+ avg_to_cop() */ id, avg(value+1),avg(value) from table_1 group by id"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestReadFromStorageHint",
|
|
"cases": [
|
|
"desc format = 'brief' select avg(a) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t]) */ avg(a) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t]) */ sum(a) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t]) */ sum(a+1) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t]) */ sum(isnull(a)) from t",
|
|
"desc format = 'brief' select /*+ READ_FROM_STORAGE(TIKV[t1], TIKV[t2]) */ * from t t1, t t2 where t1.a = t2.a",
|
|
"desc format = 'brief' select /*+ READ_FROM_STORAGE(TIKV[t1], TIFLASH[t2]) */ * from t t1, t t2 where t1.a = t2.a",
|
|
"desc format = 'brief' select * from tt where (tt.a > 1 and tt.a < 20) or (tt.a >= 30 and tt.a < 55)",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[tt]) */ * from tt where (tt.a > 1 and tt.a < 20) or (tt.a >= 30 and tt.a < 55)",
|
|
"desc format = 'brief' select * from ttt order by ttt.a desc",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[ttt]) */ * from ttt order by ttt.a desc",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[ttt]) */ * from ttt order by ttt.a",
|
|
"desc format = 'brief' select /*+ read_from_storage(tikv[t, ttt]) */ * from ttt",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t, ttt], tikv[tt]) */ * from ttt"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestKeepOrderHint",
|
|
"cases": [
|
|
"explain select /*+ keep_order(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) */ * from t1 where a<10 limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) */ * from t where a<10 limit 1;",
|
|
|
|
// The index doesn't exist
|
|
"explain select /*+ keep_order(t1, idx_b) */ * from t1 where b<10 order by b limit 1;",
|
|
"explain select /*+ keep_order(t, idx_b) */ * from t where b<10 order by b limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_b) */ * from t1 where b<10 order by b limit 1;",
|
|
"explain select /*+ no_keep_order(t, idx_b) */ * from t where b<10 order by b limit 1;",
|
|
|
|
// Use the keep_order/ no_keep_order with the use_index/ ignore_index/ force_index hint at the same time
|
|
"explain select /*+ keep_order(t1, idx_a) use_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t1, idx_a) */ * from t1 use index(idx_a) where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t1, idx_a) force_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t1, idx_a) */ * from t1 force index(idx_a) where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t1, idx_a) ignore_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
|
|
"explain select /*+ keep_order(t, primary) use_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t, primary) */ * from t use index(primary) where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t, primary) force_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t, primary) */ * from t force index(primary) where a<10 order by a limit 1;",
|
|
"explain select /*+ keep_order(t, primary) ignore_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
|
|
"explain select /*+ no_keep_order(t, primary) use_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) */ * from t use index(primary) where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) force_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) */ * from t force index(primary) where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t, primary) ignore_index(t, primary) */ * from t where a<10 order by a limit 1;",
|
|
|
|
"explain select /*+ no_keep_order(t1, idx_a) use_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) */ * from t1 use index(idx_a) where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) force_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) */ * from t1 force index(idx_a) where a<10 order by a limit 1;",
|
|
"explain select /*+ no_keep_order(t1, idx_a) ignore_index(t1, idx_a) */ * from t1 where a<10 order by a limit 1;",
|
|
|
|
// Use the keep_order/ no_keep_order with the use_view hint at the same time
|
|
"explain select /*+ qb_name(qb, v) keep_order(t1@qb, idx_a) */ * from v",
|
|
"explain select /*+ qb_name(qb, v1) keep_order(t@qb, primary) */ * from v1",
|
|
"explain select /*+ qb_name(qb, v) no_keep_order(t1@qb, idx_a) */ * from v",
|
|
"explain select /*+ qb_name(qb, v1) no_keep_order(t@qb, primary) */ * from v1",
|
|
|
|
// Use the keep_order/ no_keep_order with CTE at the same time
|
|
"explain WITH CTE AS (select /*+ keep_order(t1, idx_a) */ * from t1 where a<10 order by a limit 1) SELECT * FROM CTE WHERE CTE.a <18 union select * from cte where cte.b > 1;",
|
|
"explain WITH CTE AS (select /*+ keep_order(t, primary) */ * from t where a<10 order by a limit 1) SELECT * FROM CTE WHERE CTE.a <18 union select * from cte where cte.b > 1;",
|
|
"explain WITH CTE AS (select /*+ no_keep_order(t1, idx_a) */ * from t1 where a<10 order by a limit 1) SELECT * FROM CTE WHERE CTE.a <18 union select * from cte where cte.b > 1;",
|
|
"explain WITH CTE AS (select /*+ no_keep_order(t, primary) */ * from t where a<10 order by a limit 1) SELECT * FROM CTE WHERE CTE.a <18 union select * from cte where cte.b > 1;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestViewHint",
|
|
"cases": [
|
|
// Hint for view v
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v@sel_1 .@sel_2), merge_join(t1@qb_v_2) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v@sel_1 .@sel_2), merge_join(t1@qb_v_2), stream_agg(@qb_v_2), qb_name(qb_v_1, v@sel_1 .@sel_1), merge_join(t@qb_v_1) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v1@sel_1 . v@sel_2 .@sel_2), merge_join(t1@qb_v_2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v1@sel_1 . v@sel_2 .@sel_2), merge_join(t1@qb_v_2), stream_agg(@qb_v_2), qb_name(qb_v_1, v1@sel_1 . v@sel_2 .@sel_1), merge_join(t@qb_v_1) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_2), merge_join(t1@qb_v_2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_2), merge_join(t1@qb_v_2), stream_agg(@qb_v_2), qb_name(qb_v_1, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_1), merge_join(t@qb_v_1) */ * from v2;",
|
|
|
|
// Hint for view v1
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v1@sel_1 .@sel_2), merge_join(t1@qb_v1_2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v1@sel_1 .@sel_2), merge_join(t1@qb_v1_2), stream_agg(@qb_v1_2), qb_name(qb_v1_1, v1@sel_1 .@sel_1), merge_join(t@qb_v1_1) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v2@sel_1 . v1@sel_2 .@sel_2), merge_join(t1@qb_v1_2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v2@sel_1 . v1@sel_2 .@sel_2), merge_join(t1@qb_v1_2), stream_agg(@qb_v1_2), qb_name(qb_v1_1, v2@sel_1 . v1@sel_2 .@sel_1), merge_join(t@qb_v1_1) */ * from v2;",
|
|
|
|
// Hint for view v2
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2_2, v2@sel_1 .@sel_2), merge_join(t1@qb_v2_2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2_2, v2@sel_1 .@sel_2), merge_join(t1@qb_v2_2), stream_agg(@qb_v2_2), qb_name(qb_v2_1, v2), merge_join(t@qb_v2_1) */ * from v2;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestViewHintScope",
|
|
"cases": [
|
|
// Same qb name in one query
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v@sel_1 .@sel_2), qb_name(qb_v, v@sel_1 .@sel_1), merge_join(t1@qb_v) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v1@sel_1 .v@sel_2 .@sel_2), qb_name(qb_v, v1@sel_1 .v@sel_2 .@sel_1), merge_join(t1@qb_v) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v2@sel_1 .v1@sel_2 .v@sel_2 .@sel_2), qb_name(qb_v, v2@sel_1 .v1@sel_2 .v@sel_2 .@sel_1), merge_join(t1@qb_v) */ * from v2;",
|
|
|
|
// Set the unappeared view name
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v@sel_1 .@sel_2), merge_join(t1@qb_v1_2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v2@sel_1 . v@sel_1 .@sel_2), merge_join(t1@qb_v1_2) */ * from v2;",
|
|
|
|
// Exist the view alias
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2_2, vv@sel_1 .@sel_2), merge_join(t1@qb_v2_2) */ * from v2 vv;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2_2, v2@sel_1 .@sel_2), merge_join(t1@qb_v2_2) */ * from v2 vv;",
|
|
|
|
// Tht view hint isn't set in the first query block.
|
|
"explain format = 'brief' select * from (select /*+ qb_name(qb_v_2, v@sel_1 .@sel_2), merge_join(t1@qb_v_2) */ * from v) t;",
|
|
"explain format = 'brief' select * from (select /*+ qb_name(qb_v_2, v.@sel_2), merge_join(t1@qb_v_2), stream_agg(@qb_v_2), qb_name(qb_v_1, v@sel_1 .@sel1), merge_join(t@qb_v_1) */ * from v) t;",
|
|
"explain format = 'brief' select * from (select /*+ qb_name(qb_v_2, v1@sel_1 . v@sel_2 .@sel_2), merge_join(t1@qb_v_2) */ * from v1) t;",
|
|
"explain format = 'brief' select * from (select /*+ qb_name(qb_v_2, v1.v@sel_2 .@sel_2), merge_join(t1@qb_v_2), stream_agg(@qb_v_2), qb_name(qb_v_1, v1@sel_1 . v@sel_2 .@sel_1), merge_join(t@qb_v_1) */ * from v1) t;",
|
|
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v@sel_2 .@sel_2) */ * from (select /*+ merge_join(t1@qb_v_2) */ * from v) t;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v@sel_2 .@sel_2), qb_name(qb_v_1, v@sel_2 .@sel1) */ * from (select /*+ merge_join(t1@qb_v_2), stream_agg(@qb_v_2), merge_join(t@qb_v_1) */ * from v) t;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v1@sel_2 . v@sel_2 .@sel_2) */ * from (select /*+ merge_join(t1@qb_v_2) */ * from v1) t;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v1@sel_2 . v@sel_2 .@sel_2), qb_name(qb_v_1, v1@sel_2 . v@sel_2 .@sel_1) */ * from (select /*+ merge_join(t1@qb_v_2), stream_agg(@qb_v_2), merge_join(t@qb_v_1) */ * from v1) t;",
|
|
|
|
// Define more tables in one view hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1_2, v2. v1@sel_2 .@sel_2), qb_name(qb_v1_1, v2@sel_1 . v1@sel_2 .@sel_1), merge_join(t1@qb_v1_2, t@qb_v1_1), merge_join(t1@qb_v1_2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_2), qb_name(qb_v_1, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_1), merge_join(t1@qb_v_2, t3@qb_v_2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_2), qb_name(qb_v_1, v2@sel_1 . v1@sel_2 . v@sel_2 .@sel_1), merge_join(@qb_v_2 t1, t3) */ * from v2;",
|
|
|
|
// Ignore the @sel_1 query block
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v .@sel_2), merge_join(t1@qb_v_2) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_1, v@sel_1), merge_join(t@qb_v_1) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_2, v1 .v@sel_2 .@sel_2), merge_join(t1@qb_v_2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v_1, v1 .v@sel_2), merge_join(t@qb_v_1) */ * from v1;",
|
|
|
|
// Use the query block before define it
|
|
"explain format = 'brief' select /*+ merge_join(t1@qb_v_2), qb_name(qb_v_2, v@sel_1 .@sel_2) */ * from v;",
|
|
"explain format = 'brief' select /*+ merge_join(t@qb_v_1), stream_agg(@qb_v_2), qb_name(qb_v_2, v@sel_1 .@sel_2), qb_name(qb_v_1, v@sel_1 .@sel_1) */ * from v;",
|
|
|
|
// The view contains the hint when creation
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3_2, v3@sel_1 .@sel_2), merge_join(t1@qb_v3_2) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3_2, v3@sel_1 .@sel_2), merge_join(t1@qb_v3_2), hash_agg(@qb_v3_2), qb_name(qb_v3_1, v3@sel_1 .@sel_1), hash_join(t@qb_v3_1) */ * from v3;",
|
|
|
|
// The view is in the CTE
|
|
"explain with d1 as (\n select a from (\n select a from (\n select /*+ qb_name(qb, v4) use_index(t4@qb, idx_a) */ a from v4 where a < 10\n ) as t0 where a < 9\n ) as t1 where a < 8\n), d2 as (select /*+ qb_name(qb2, v4) use_index(t4@qb2, idx_b) */ a from v4 where b < 10)\n\nselect * from (select * from d1) as t0 join (select * from d2) as t1;",
|
|
"explain with d1 as (\n select a from (\n select a from (\n select a from v4 where a < 10\n ) as t0 where a < 9\n ) as t1 where a < 8\n), d2 as (select a from v4 where b < 10)\n\nselect /*+ qb_name(qb, v4@sel_4) use_index(t4@qb, idx_a) qb_name(qb2, v4@sel_5) use_index(t4@qb, idx_b) */ * from (select * from d1) as t0 join (select * from d2) as t1;",
|
|
"explain with d1 as (\n select a from (\n select a from (\n select /*+ qb_name(qb, v5) use_index(t4@qb, idx_a) */ a from v4 where a < 10\n ) as t0 where a < 9\n ) as t1 where a < 8\n), d2 as (select /*+ qb_name(qb2, v4) use_index(t4@qb2, idx_b) */ a from v4 where b < 10)\n\nselect * from (select * from d1) as t0 join (select * from d2) as t1;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestAllViewHintType",
|
|
"cases": [
|
|
// leading hint
|
|
// join nodes in the same view
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), leading(@qb_v1 v, t2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), leading(v@qb_v1, t2@qb_v1) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), leading(@qb_v1 t3, t2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), leading(t3@qb_v1, t2@qb_v1) */ * from v1;",
|
|
|
|
// join node across view
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), qb_name(qb_v, v1.v), leading(t2@qb_v1, t@qb_v) */ * from v1;",
|
|
|
|
// hash_join hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join(@qb_v1 v, t2) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join(t2@qb_v1, t3@qb_v1) */ * from v1;",
|
|
|
|
// hash join build hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join_build(@qb_v1 v) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join_build(t2@qb_v1) */ * from v1;",
|
|
|
|
// hash join probe hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join_build(@qb_v1 v) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), hash_join_build(t2@qb_v1) */ * from v1;",
|
|
|
|
// merge join hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), merge_join(@qb_v1 v) */ * from v1;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v1, v1), merge_join(t2@qb_v1) */ * from v1;",
|
|
|
|
// index join hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v), INL_JOIN(@qb_v t) */ * from v;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v), INL_JOIN(t@qb_v) */ * from v;",
|
|
|
|
// agg hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2, v2.@sel_2), hash_agg(@qb_v2) */ * from v2;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v2, v2.@sel_2), stream_agg(@qb_v2) */ * from v2;",
|
|
|
|
// index hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), use_index(t5@qb_v3, idx_a) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), use_index(@qb_v3 t5, idx_b) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), force_index(t5@qb_v3, idx_a) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), force_index(@qb_v3 t5, idx_b) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), ignore_index(t5@qb_v3, idx_a) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v3, v3), ignore_index(@qb_v3 t5, idx_b) */ * from v3;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v4, v4), use_index_merge(t5@qb_v4, idx_a, idx_b) */ * from v4;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v4, v4), use_index_merge(@qb_v4 t5, idx_b, idx_a) */ * from v4;",
|
|
|
|
// read from storage
|
|
"explain format = 'brief' select /*+ qb_name(qb_v, v), READ_FROM_STORAGE(TIFLASH[t@qb_v], TIKV[t1@qb_v]) */ * from v;",
|
|
|
|
// subquery hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v5, v5.@sel_2), SEMI_JOIN_REWRITE(@qb_v5) */ * from v5;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v6, v6.@sel_2), NO_DECORRELATE(@qb_v6) */ * from v6;",
|
|
|
|
// cte hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v7, v7), merge(@qb_v7) */ * from v7;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v8, v8), merge(@qb_v8) */ * from v8;",
|
|
|
|
// agg to cop hint
|
|
"explain format = 'brief' select /*+ qb_name(qb_v9, v9), AGG_TO_COP(@qb_v9) */ * from v9;",
|
|
"explain format = 'brief' select /*+ qb_name(qb_v10, v10), LIMIT_TO_COP(@qb_v10) */ * from v10;",
|
|
|
|
// MPP hint
|
|
"explain format = 'brief' select /*+ qb_name(qb, v11) read_from_storage(tiflash[t@qb]), MPP_1PHASE_AGG(@qb) */ * from v11;",
|
|
"explain format = 'brief' select /*+ qb_name(qb, v11) read_from_storage(tiflash[t@qb]), MPP_2PHASE_AGG(@qb) */ * from v11;",
|
|
"explain format = 'brief' select /*+ qb_name(qb, v12) read_from_storage(tiflash[t1@qb, t@qb]), shuffle_join(t1@qb, t@qb) */ * from v12;",
|
|
"explain format = 'brief' select /*+ qb_name(qb, v12) read_from_storage(tiflash[t1@qb, t@qb]), broadcast_join(t1@qb, t@qb) */ * from v12;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestReadFromStorageHintAndIsolationRead",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ read_from_storage(tikv[t], tiflash[t]) */ avg(a) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tikv[t]) */ avg(a) from t",
|
|
"desc format = 'brief' select /*+ read_from_storage(tiflash[t]) */ avg(a) from t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIsolationReadDoNotFilterSystemDB",
|
|
"cases": [
|
|
"desc format = 'brief' select * from metrics_schema.tidb_query_duration where time >= '2019-12-23 16:10:13' and time <= '2019-12-23 16:30:13'",
|
|
"desc format = 'brief' select * from information_schema.tables",
|
|
"desc format = 'brief' select * from mysql.stats_meta"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIsolationReadTiFlashNotChoosePointGet",
|
|
"cases": [
|
|
"explain format = 'brief' select * from t where t.a = 1",
|
|
"explain format = 'brief' select * from t where t.a in (1, 2)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIsolationReadTiFlashUseIndexHint",
|
|
"cases": [
|
|
"explain format = 'brief' select * from t",
|
|
"explain format = 'brief' select * from t use index();",
|
|
"explain format = 'brief' select /*+ use_index(t, idx)*/ * from t",
|
|
"explain format = 'brief' select /*+ use_index(t)*/ * from t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue20710",
|
|
"cases": [
|
|
"explain format = 'brief' select /*+ inl_join(s) */ * from t join s on t.a=s.a and t.b = s.b",
|
|
"explain format = 'brief' select /*+ inl_join(s) */ * from t join s on t.a=s.a and t.b = s.a",
|
|
"explain format = 'brief' select /*+ inl_join(s) */ * from t join s on t.a=s.a and t.a = s.b",
|
|
"explain format = 'brief' select /*+ inl_hash_join(s) */ * from t join s on t.a=s.a and t.b = s.b",
|
|
"explain format = 'brief' select /*+ inl_hash_join(s) */ * from t join s on t.a=s.a and t.b = s.a",
|
|
"explain format = 'brief' select /*+ inl_hash_join(s) */ * from t join s on t.a=s.a and t.a = s.b"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownProjectionForTiKV",
|
|
"cases": [
|
|
"desc format = 'brief' select i * 2 from t",
|
|
"desc format = 'brief' select DATE_FORMAT(t, '%Y-%m-%d %H') as date from t",
|
|
"desc format = 'brief' select md5(s) from t",
|
|
"desc format = 'brief' select c from t where a+1=3",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select * from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select * from t join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t left join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t right join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select A.b, B.b from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select A.id from t as A where exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' select A.id from t as A where not exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' SELECT FROM_UNIXTIME(name,'%Y-%m-%d') FROM t;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownProjectionForTiFlashCoprocessor",
|
|
"cases": [
|
|
"desc format = 'brief' select i * 2 from t",
|
|
"desc format = 'brief' select DATE_FORMAT(t, '%Y-%m-%d %H') as date from t",
|
|
"desc format = 'brief' select md5(s) from t",
|
|
"desc format = 'brief' select c from t where a+1=3",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select * from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select * from t join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t left join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t right join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select A.b, B.b from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select A.id from t as A where exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' select A.id from t as A where not exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' SELECT FROM_UNIXTIME(name,'%Y-%m-%d') FROM t;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownProjectionForTiFlash",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(b) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ sum(b) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(b) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(*) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ sum(b) from (select /*+ read_from_storage(tiflash[t]) */ id + 1 as b from t)A",
|
|
"desc format = 'brief' select * from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select * from t join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t left join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t right join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select A.b, B.b from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select A.id from t as A where exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' select A.id from t as A where not exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' SELECT FROM_UNIXTIME(name,'%Y-%m-%d') FROM t;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownProjectionForMPP",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ count(*) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ stream_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select B.b+A.b from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select * from t join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t left join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select * from t right join (select id-2 as b from t) A on A.b=t.id",
|
|
"desc format = 'brief' select A.b, B.b from (select id-2 as b from t) B join (select id-2 as b from t) A on A.b=B.b",
|
|
"desc format = 'brief' select id from t as A where exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' select id from t as A where not exists (select 1 from t where t.id=A.id)",
|
|
"desc format = 'brief' select b*2, id from (select avg(value+2) as b, id from t group by id) C order by id",
|
|
"desc format = 'brief' SELECT FROM_UNIXTIME(name,'%Y-%m-%d') FROM t;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownSelectionForMPP",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) c, id from t group by id having id >c",
|
|
"desc format = 'brief' select * from t where id < 2"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMppUnionAll",
|
|
"cases": [
|
|
"explain format = 'brief' select count(*) from (select a , b from t union all select a , b from t1) tt",
|
|
"explain format = 'brief' select count(*) from (select a , b from t union all select a , b from t1 union all select a, b from t where false) tt",
|
|
"explain format = 'brief' select count(*) from (select a , b from t union all select a , c from t1) tt",
|
|
"explain format = 'brief' select count(*) from (select a , b from t union all select a , c from t1 where false) tt",
|
|
"explain format = 'brief' select count(*) from (select a , b from t where false union all select a , c from t1 where false) tt"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMppJoinDecimal",
|
|
"cases": [
|
|
"desc format = 'brief' select t1.c1, t1.c2, t2.c1, t2.c2, t2.c3 from t t1 join t t2 on t1.c1 + 1 = t2.c2 - 10 and t1.c1 * 3 = t2.c3 / 2",
|
|
"desc format = 'brief' select * from (select c1, c2, c5, count(*) c from t group by c1, c2, c5) t1 join (select c1, c2, c3, count(*) c from t group by c1, c2, c3) t2 on t1.c1 = t2.c2 and t1.c2 = t2.c3 and t1.c5 = t2.c1",
|
|
"desc format = 'brief' select * from t t1 join t t2 on t1.c1 = t2.c2 and t1.c2 = t2.c2 and t1.c3 = t2.c3 and t1.c4 = t2.c4 and t1.c5 = t2.c5",
|
|
"desc format = 'brief' select * from t t1 join t t2 on t1.c1 = t2.c2 and t1.c2 = t2.c3 and t1.c3 = t2.c1 and t1.c4 = t2.c3 and t1.c1 = t2.c5",
|
|
"desc format = 'brief' select * from t t1 join t t2 on t1.c1 + t1.c2 = t2.c2 / t2.c3",
|
|
"desc format = 'brief' select * from t t1 where exists (select * from t t2 where t1.c1 = t2.c2 and t1.c2 = t2.c3 and t1.c3 = t2.c1 and t1.c4 = t2.c3 and t1.c1 = t2.c5)",
|
|
"desc format = 'brief' select * from t t1 left join t t2 on t1.c1 = t2.c2 join t t3 on t2.c5 = t3.c3 right join t t4 on t3.c3 = t4.c4 ",
|
|
"desc format = 'brief' SELECT STRAIGHT_JOIN t1 . col_varchar_64 , t1 . col_char_64_not_null FROM tt AS t1 INNER JOIN( tt AS t2 JOIN tt AS t3 ON(t3 . col_decimal_30_10_key = t2 . col_tinyint)) ON(t3 . col_varchar_64 = t2 . col_varchar_key) WHERE t3 . col_varchar_64 = t1 . col_char_64_not_null GROUP BY 1 , 2"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMppJoinExchangeColumnPrune",
|
|
"cases": [
|
|
"desc format = 'brief' select * from tt t1 where exists (select * from t t2 where t1.b1 = t2.c3 and t2.c1 < t2.c2)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMppFineGrainedJoinAndAgg",
|
|
"cases": [
|
|
"desc format = 'brief' select * from tt t1 where exists (select * from t t2 where t1.b1 = t2.c3 and t2.c1 < t2.c2)",
|
|
"desc format = 'brief' select count(*) from tt group by b1"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownAggForMPP",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ count(*) from (select id+1 from t)A",
|
|
"desc format = 'brief' select /*+ hash_agg()*/ sum(b) from (select id + 1 as b from t)A",
|
|
"desc format = 'brief' select count(*) from t",
|
|
"desc format = 'brief' select count(*), id from t group by id",
|
|
"desc format = 'brief' select count(*), id + 1 from t group by id + 1",
|
|
"desc format = 'brief' select * from t join ( select count(*), id from t group by id) as A on A.id = t.id",
|
|
"desc format = 'brief' select * from t join ( select /*+ hash_agg()*/ count(*) as a from t) as A on A.a = t.id",
|
|
"desc format = 'brief' select avg(value) as b,id from t group by id",
|
|
"desc format = 'brief' select /*+hash_agg()*/ sum(b) from (select avg(value) as b, id from t group by id)A",
|
|
"desc format = 'brief' select id from t group by id having avg(value)>0",
|
|
"desc format = 'brief' select avg(value),id from t group by id having avg(value)>0",
|
|
"desc format = 'brief' select avg(value) +1,id from t group by id",
|
|
"desc format = 'brief' select sum(b) from (select t.id, t1.id as b from t join t t1 on t.id=t1.id)A group by id",
|
|
"desc format = 'brief' select * from (select id from t group by id) C join (select sum(b),id from (select t.id, t1.id as b from t join (select id, count(*) as c from t group by id) t1 on t.id=t1.id)A group by id)B on C.id=b.id",
|
|
"desc format = 'brief' select count(distinct value),id from t group by id",
|
|
"desc format = 'brief' select count(distinct value),sum(distinct value),id from t group by id",
|
|
"desc format = 'brief' select * from t join ( select count(distinct value), id from t group by id) as A on A.id = t.id",
|
|
"desc format = 'brief' select * from t join ( select count(1/value), id from t group by id) as A on A.id = t.id",
|
|
"desc format = 'brief' select /*+hash_agg()*/ sum(id) from (select value, id from t where id > value group by id, value)A group by value /*the exchange should have only one partition column: test.t.value*/",
|
|
"desc format = 'brief' select /*+hash_agg()*/ sum(B.value) from t as B where B.id+1 > (select count(*) from t where t.id= B.id and t.value=B.value) group by B.id /*the exchange should have only one partition column: test.t.id*/",
|
|
"desc format = 'brief' select count(distinct value) from t",
|
|
"desc format = 'brief' select count(distinct x ) from (select count(distinct value) x from t) t",
|
|
"desc format = 'brief' select count(distinct value), count(value), avg(value) from t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMppAggTopNWithJoin",
|
|
"cases": [
|
|
"desc format = 'brief' select * from t join ( select count(*), id from t group by id) as A on A.id = t.id",
|
|
"desc format = 'brief' select * from t join ( select count(*)+id as v from t group by id) as A on A.v = t.id",
|
|
"desc format = 'brief' select * from t join ( select count(*) as v, id from t group by value,id having value+v <10) as A on A.id = t.id",
|
|
"desc format = 'brief' select * from t join ( select /*+ hash_agg()*/ count(*) as a from t) as A on A.a = t.id",
|
|
"desc format = 'brief' select sum(b) from (select t.id, t1.id as b from t join t t1 on t.id=t1.id)A group by id",
|
|
"desc format = 'brief' select * from (select id from t group by id) C join (select sum(value),id from t group by id)B on C.id=B.id",
|
|
"desc format = 'brief' select * from (select id from t group by id) C join (select sum(b),id from (select t.id, t1.id as b from t join (select id, count(*) as c from t group by id) t1 on t.id=t1.id)A group by id)B on C.id=b.id",
|
|
"desc format = 'brief' select * from t join t t1 on t.id = t1.id order by t.value limit 1",
|
|
"desc format = 'brief' select * from t join t t1 on t.id = t1.id order by t.value % 100 limit 1",
|
|
"desc format = 'brief' select count(*) from (select t.id, t.value v1 from t join t t1 on t.id = t1.id order by t.value limit 20) v group by v.v1",
|
|
"desc format = 'brief' select * from t join t t1 on t.id = t1.id limit 1",
|
|
"desc format = 'brief' select * from t join t t1 on t.id = t1.id limit 1",
|
|
"desc format = 'brief' select count(*) from (select t.id, t.value v1 from t join t t1 on t.id = t1.id limit 20) v group by v.v1"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIndexMergeSerial",
|
|
"cases": [
|
|
"desc format='brief' select /*+ use_index_merge(t) */ * from t where a =1 or (b=1 and b+2>1)",
|
|
"desc format='brief' select /*+ use_index_merge(t) */ * from t where a =1 or (b=1 and length(b)=1)",
|
|
"desc format='brief' select /*+ use_index_merge(t) */ * from t where (a=1 and length(a)=1) or (b=1 and length(b)=1)",
|
|
"desc format='brief' select /*+ use_index_merge(t) */ * from t where (a=1 and length(b)=1) or (b=1 and length(a)=1)"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestLimitIndexLookUpKeepOrder",
|
|
"cases": [
|
|
"desc format = 'brief' select * from t where a = 1 and b > 2 and b < 10 and d = 10 order by b,c limit 10",
|
|
"desc format = 'brief' select * from t where a = 1 and b > 2 and b < 10 and d = 10 order by b desc, c desc limit 10"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue23887",
|
|
"cases": [
|
|
"select (2) in (select b from t) from (select t.a < (select t.a from t t1 limit 1) from t) t"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestMergeContinuousSelections",
|
|
"cases": [
|
|
"desc format = 'brief' SELECT table2 . `col_char_64` AS field1 FROM `ts` AS table2 INNER JOIN (SELECT DISTINCT SUBQUERY3_t1 . * FROM `ts` AS SUBQUERY3_t1 LEFT OUTER JOIN `ts` AS SUBQUERY3_t2 ON SUBQUERY3_t2 . `col_varchar_64_not_null` = SUBQUERY3_t1 . `col_varchar_key`) AS table3 ON (table3 . `col_varchar_key` = table2 . `col_varchar_64`) WHERE table3 . `col_char_64_not_null` >= SOME (SELECT SUBQUERY4_t1 . `col_varchar_64` AS SUBQUERY4_field1 FROM `ts` AS SUBQUERY4_t1) GROUP BY field1 ;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestPushDownGroupConcatToTiFlash",
|
|
"cases": [
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id order by col_0) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id order by col_0) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id order by col_0),count(*),min(col_1) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id order by col_0),count(*),max(col_0) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id order by col_0) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id order by col_0) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_1, id order by col_0) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_1, id order by col_0) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id order by col_0),count(*),min(col_0),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id order by col_0),count(*),max(col_1),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id order by col_0),count(distinct id),min(col_0),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id order by col_0),count(distinct id),max(col_1),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id),count(distinct id),min(col_0),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id),count(distinct id),max(col_1),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id),count(distinct id),min(col_0),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id),count(distinct id),max(col_1),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_1, id),count(distinct id),group_concat(col_0 order by 1),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0),count(distinct id),group_concat(col_1, id order by 1,2),avg(id) from ts group by col_2",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, id),count(distinct id),group_concat(col_1, id order by 1,2),min(col_0),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id),count(distinct id),group_concat(col_1, id order by 1,2),max(col_1),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id),count(distinct col_2),group_concat(col_1, id),max(col_1),avg(id) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0, col_1, id),count(distinct col_2),group_concat(col_1, id),max(col_1),avg(id) from ts group by col_0",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,'GG') from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,'01') from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,1) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,0) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,10) from ts group by '010'",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,0) from ts group by '011'",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 0,'GG') from ts group by 'GG'",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 'GG','GG') from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 'Gg','GG') from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct 'GG-10','GG') from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct '1200-01-01 00:00:00.023',1200) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_0) from ts group by id",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(col_0, col_0,id) from ts group by id",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0 order by id<10) from ts",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0 order by id<10) from ts group by col_1",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0>10 order by id<10) from ts group by col_1",
|
|
"desc format = 'brief' select /*+ hash_agg(),agg_to_cop() */ group_concat(distinct col_0 order by col_0<=>null) from ts"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestRejectSortForMPP",
|
|
"cases": [
|
|
"desc format = 'brief' select count(*) from (select * from t order by id)a group by name,id order by id",
|
|
"desc format = 'brief' select count(*) from (select * from t order by id)a group by name order by 1",
|
|
"desc format = 'brief' select count(*) from (select id,name from t group by id,name order by id,name)a group by name order by 1",
|
|
"desc format = 'brief' select * from (select id from t group by id order by id)a join t on a.id=t.id order by 1",
|
|
"desc format = 'brief' select * from (select * from t order by id)a join t on a.id=t.id order by 1",
|
|
"desc format = 'brief' select * from ((select id from t order by 1) union all (select id+1 from t order by 1))c",
|
|
"desc format = 'brief' select * from ((select count(*) from (select id,name from t order by id)a group by name,id order by id) union all (select id+1 from t order by 1))c",
|
|
"desc format = 'brief' select * from (select * from t order by id)a order by name"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIssue32632",
|
|
"cases": [
|
|
"explain format = 'brief' select sum(ps_supplycost) from partsupp, supplier where ps_suppkey = s_suppkey;"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestTiFlashPartitionTableScan",
|
|
"cases": [
|
|
"explain format = 'brief' select * from rp_t where a = 1 or a = 20",
|
|
"explain format = 'brief' select * from hp_t where a = 1 or a = 20",
|
|
"explain format = 'brief' select count(*) from rp_t where a = 1 or a = 20",
|
|
"explain format = 'brief' select count(*) from hp_t where a = 1 or a = 20"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestTiFlashFineGrainedShuffle",
|
|
"cases": [
|
|
// 1. Can use fine grained shuffle.
|
|
"explain format = 'brief' select row_number() over w1 from t1 window w1 as (partition by c1 order by c1);",
|
|
// Test two window function.
|
|
"explain format = 'brief' select row_number() over w1, rank() over w2 from t1 window w1 as (partition by c1 order by c1), w2 as (partition by c2);",
|
|
// Limit + Order.
|
|
"explain format = 'brief' select row_number() over w1, rank() over w2 from t1 window w1 as (partition by c1 order by c1), w2 as (partition by c2) order by 1, 2 limit 10;",
|
|
// // No partition by key in w2, so disabled. But w1 is still enabled. BUG: https://github.com/pingcap/tidb/pull/35256#discussion_r913324160
|
|
// "explain format = 'brief' select row_number() over w1, row_number() over w2 from t1 window w1 as (partition by c1 order by c1), w2 as (order by c1);",
|
|
// GroupBy key and window function partition key are not same.
|
|
"explain format = 'brief' select row_number() over w1, count(c2) from t1 group by c1 having c1 > 10 window w1 as (partition by c2 order by c2);",
|
|
"explain format = 'brief' select row_number() over w1, count(c1) from t1 group by c2 having c2 > 10 window w1 as (partition by c1 order by c2);",
|
|
// Join, same as GroupBy.
|
|
"explain format = 'brief' select row_number() over w1 from t1 a join t1 b on a.c1 = b.c2 window w1 as (partition by a.c1);",
|
|
// Selection.
|
|
"explain format = 'brief' select row_number() over w1 from t1 where c1 < 100 window w1 as (partition by c1 order by c1);",
|
|
|
|
// 2. Cannot use fine grained shuffle.
|
|
// No window function, so disabled.
|
|
"explain format = 'brief' select * from t1;",
|
|
// No partition key in window function, so disabled.
|
|
"explain format = 'brief' select row_number() over w1 from t1 window w1 as (order by c1);",
|
|
// GroupBy key is same with window function partition key, so they are in one fragment.
|
|
// But fine grained shuffle doesn't support group by for now.
|
|
"explain format = 'brief' select row_number() over w1, count(c2) from t1 group by c1 having c1 > 10 window w1 as (partition by c1 order by c2);"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestIndexJoinRangeFallback",
|
|
"cases": [
|
|
"set @@tidb_opt_range_max_size = 0",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.b = t2.e and t1.d = t2.g where t1.a in (1, 3) and t1.c in ('aaa', 'bbb')",
|
|
"set @@tidb_opt_range_max_size = 2900",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.b = t2.e and t1.d = t2.g where t1.a in (1, 3) and t1.c in ('aaa', 'bbb')",
|
|
"set @@tidb_opt_range_max_size = 2300",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.b = t2.e and t1.d = t2.g where t1.a in (1, 3) and t1.c in ('aaa', 'bbb')",
|
|
"set @@tidb_opt_range_max_size = 700",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.b = t2.e and t1.d = t2.g where t1.a in (1, 3) and t1.c in ('aaa', 'bbb')",
|
|
"set @@tidb_opt_range_max_size = 0",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.a = t2.e where t1.b > 1 and t1.b < 10",
|
|
"set @@tidb_opt_range_max_size = 300",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.a = t2.e where t1.b > 1 and t1.b < 10",
|
|
"set @@tidb_opt_range_max_size = 0",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.a = t2.e where t1.b > t2.f and t1.b < t2.f + 10",
|
|
"set @@tidb_opt_range_max_size = 300",
|
|
"explain format='brief' select /*+ inl_join(t1) */ * from t1 join t2 on t1.a = t2.e where t1.b > t2.f and t1.b < t2.f + 10"
|
|
]
|
|
},
|
|
{
|
|
"name": "TestNullConditionForPrefixIndex",
|
|
"cases": [
|
|
"select count(1) from t1 where c1 = '0xfff' and c2 is not null",
|
|
"select count(1) from t1 where c1 = '0xfff' and c2 is null",
|
|
"select count(1) from t1 where c1 >= '0xfff' and c2 is not null",
|
|
"select count(1) from t1 where c1 >= '0xfff' and c2 is null",
|
|
"select count(1) from t1 where c1 = '0xfff' and (c2 + 1) is not null",
|
|
"select count(1) from t1 where c1 = '0xfff' and (c2 + 1) is null",
|
|
"select c2 from t1 use index(idx2) where c1 = '0xfff' and c2 is not null",
|
|
"select c2 from t1 use index(idx2) where c1 = '0xfff' and c2 is null",
|
|
"select c2 from t1 use index(idx2) where c1 >= '0xfff' and c2 is not null",
|
|
"select c2 from t1 use index(idx2) where c1 >= '0xfff' and c2 is null",
|
|
"select count(1) from t2 use index(idx) where b is not null",
|
|
"select count(1) from t2 use index(idx) where b is null",
|
|
"select b from t2 use index(idx) where b is not null",
|
|
"select b from t2 use index(idx) where b is null",
|
|
"select b from t3 where a = 1 and b is not null",
|
|
"select b from t3 where a = 1 and b is null"
|
|
]
|
|
}
|
|
]
|