planner: update some UTs from cost model1 to model2 #39085
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ti-chi-bot
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qw4990
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qw4990
commented
Nov 11, 2022
| @@ -240,7 +241,7 @@ func TestPrepareCacheWithBinding(t *testing.T) { | |||
| ps = []*util.ProcessInfo{tkProcess} | |||
| tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps}) | |||
| res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10)) | |||
| require.False(t, tk.HasPlan4ExplainFor(res, "IndexReader")) | |||
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Expected, TableScan -> IndexScan.
qw4990
commented
Nov 11, 2022
executor/join_test.go
Outdated
| @@ -1468,25 +1469,23 @@ func TestIndexNestedLoopHashJoin(t *testing.T) { | |||
| tk.MustExec("set @@tidb_index_join_batch_size=2") | |||
| tk.MustQuery("desc format = 'brief' select * from t l1 where exists ( select * from t l2 where l2.l_orderkey = l1.l_orderkey and l2.l_suppkey <> l1.l_suppkey ) order by `l_orderkey`,`l_linenumber`;").Check(testkit.Rows( | |||
| "Sort 7.20 root test.t.l_orderkey, test.t.l_linenumber", | |||
| "└─IndexHashJoin 7.20 root semi join, inner:IndexLookUp, outer key:test.t.l_orderkey, inner key:test.t.l_orderkey, equal cond:eq(test.t.l_orderkey, test.t.l_orderkey), other cond:ne(test.t.l_suppkey, test.t.l_suppkey)", | |||
| "└─HashJoin 7.20 root semi join, equal:[eq(test.t.l_orderkey, test.t.l_orderkey)], other cond:ne(test.t.l_suppkey, test.t.l_suppkey)", | |||
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Expected, HashJoin is more robust.
qw4990
commented
Nov 11, 2022
| " └─TableFullScan_14 10000.00 cop[tikv] table:t1 keep order:false, stats:pseudo" | ||
| "└─HashAgg_12(Probe) 8000.00 root group by:test.t1.a, funcs:firstrow(test.t1.a)->test.t1.a", | ||
| " └─TableReader_13 8000.00 root data:HashAgg_8", | ||
| " └─HashAgg_8 8000.00 cop[tikv] group by:test.t1.a, ", |
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Expected, pushing it down is safer.
qw4990
commented
Nov 11, 2022
| "└─IndexReader_19 1.00 root index:StreamAgg_9", | ||
| " └─StreamAgg_9 1.00 cop[tikv] funcs:count(1)->Column#7", | ||
| " └─IndexRangeScan_17 99.90 cop[tikv] table:t1, index:idx2(c1, c2) range:[\"0xfff\" -inf,\"0xfff\" +inf], keep order:false, stats:pseudo")) | ||
| "HashAgg_12 1.00 root funcs:count(Column#6)->Column#5", |
There was a problem hiding this comment.
Expected, model2 prefers to use HashAgg instead of StreamAgg.
qw4990
commented
Nov 11, 2022
| "HashAgg 1.00 root funcs:count(Column#8)->Column#7", | ||
| "└─TableReader 1.00 root data:ExchangeSender", | ||
| " └─ExchangeSender 1.00 mpp[tiflash] ExchangeType: PassThrough", | ||
| " └─HashAgg 1.00 mpp[tiflash] funcs:count(1)->Column#8", |
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Expected, pushing it down to the TiFlash is safer.
Reminiscent
approved these changes
Nov 11, 2022
fzzf678
approved these changes
Nov 11, 2022
ti-chi-bot
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status/LGT2
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size/XL
…o model2-ut-update
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/merge |
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This pull request has been accepted and is ready to merge. Commit hash: de79b12
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/run-mysql-test |
TiDB MergeCI notify🔴 Bad News! New failing [1] after this pr merged.
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What problem does this PR solve?
Issue Number: ref #35240
Problem Summary: planner: update some UTs from cost model1 to model2
What is changed and how it works?
planner: update some UTs from cost model1 to model2
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Tests
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