[fix](Nereids) fix link children failed #33134
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Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
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TPC-H: Total hot run time: 41688 ms |
TPC-DS: Total hot run time: 181148 ms |
ClickBench: Total hot run time: 29.68 s |
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Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G' |
morrySnow
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PR approved by at least one committer and no changes requested. |
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feiniaofeiafei
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apache#32617 introduce a bug: rewrite may not working when plan's arity >= 3. this pr fix it (cherry picked from commit 8b070d1)
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apache#32617 introduce a bug: rewrite may not working when plan's arity >= 3. this pr fix it (cherry picked from commit 8b070d1)
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…33460) * [enhancement](Nereids) refactor expression rewriter to pattern match (#32617) this pr can improve the performance of the nereids planner, in plan stage. 1. refactor expression rewriter to pattern match, so the lots of expression rewrite rules can criss-crossed apply in a big bottom-up iteration, and rewrite until the expression became stable. now we can process more cases because original there has no loop, and sometimes only process the top expression, like `SimplifyArithmeticRule`. 2. replace `Collection.stream()` to `ImmutableXxx.Builder` to avoid useless method call 3. loop unrolling some codes, like `Expression.<init>`, `PlanTreeRewriteBottomUpJob.pushChildrenJobs` 4. use type/arity specified-code, like `OneRangePartitionEvaluator.toNereidsLiterals()`, `PartitionRangeExpander.tryExpandRange()`, `PartitionRangeExpander.enumerableCount()` 5. refactor `ExtractCommonFactorRule`, now we can extract more cases, and I fix the deed loop when use `ExtractCommonFactorRule` and `SimplifyRange` in one iterative, because `SimplifyRange` generate right deep tree, but `ExtractCommonFactorRule` generate left deep tree 6. refactor `FoldConstantRuleOnFE`, support visitor/pattern match mode, in ExpressionNormalization, pattern match can criss-crossed apply with other rules; in PartitionPruner, visitor can evaluate expression faster 7. lazy compute and cache some operation 8. use int field to compare date 9. use BitSet to find disableNereidsRules 10. two level loop usually faster then build Multimap when bind slot in Scope, so I revert the code 11. `PlanTreeRewriteBottomUpJob` don't need to clearStatePhase any more ### test case 100 threads parallel continuous send this sql which query an empty table, test in my mac machine(m2 chip, 8 core), enable sql cache ```sql select count(1),date_format(time_col,'%Y%m%d'),varchar_col1 from tbl where partition_date>'2024-02-15' and (varchar_col2 ='73130' or varchar_col3='73130') and time_col>'2024-03-04' and time_col<'2024-03-05' group by date_format(time_col,'%Y%m%d'),varchar_col1 order by date_format(time_col,'%Y%m%d') desc, varchar_col1 desc,count(1) asc limit 1000 ``` before this pr: 3100 peak QPS, about 2700 avg QPS after this pr: 4800 peak QPS, about 4400 avg QPS (cherry picked from commit 7338683) * [fix](Nereids) fix link children failed (#33134) #32617 introduce a bug: rewrite may not working when plan's arity >= 3. this pr fix it (cherry picked from commit 8b070d1)
924060929
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apache#32617 introduce a bug: rewrite may not working when plan's arity >= 3. this pr fix it (cherry picked from commit 8b070d1)
yiguolei
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Proposed changes
#32617 introduce a bug: rewrite may not working when plan's arity >= 3.
this pr fix it