[opt](nereids) optimize push down project #58370
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FE Regression Coverage ReportIncrement line coverage |
TPC-H: Total hot run time: 34187 ms |
TPC-DS: Total hot run time: 185010 ms |
ClickBench: Total hot run time: 27.99 s |
morrySnow
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starocean999
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nagisa-kunhah
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Dec 14, 2025
optimize push down project, this can reduce the scan bytes and shuffle bytes by prune nested column. apache#57204 related the sql: ```sql select coalecse(struct_element(t1.s, 'city'), 'beijing') from t1 join t2 on t1.id = t2.id ``` original plan: ``` Project(coalecse(struct_element(t1.s, 'city'), 'beijing')) | Join(t1.id=t2.id) / \ Project(t1.id, t1.s) Project(t2.id) | | Scan(t1) Scan(t2) ``` optimize plan: ``` Project(coalecse(slot#3, 'beijing')) | Join(t1.id=t2.id) / \ Project(t1.id, struct_element(t1.s, 'city')apache#3) Project(t2.id) | | Scan(t1) Scan(t2) ```
924060929
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Dec 23, 2025
optimize push down project, this can reduce the scan bytes and shuffle bytes by prune nested column. #57204 related the sql: ```sql select coalecse(struct_element(t1.s, 'city'), 'beijing') from t1 join t2 on t1.id = t2.id ``` original plan: ``` Project(coalecse(struct_element(t1.s, 'city'), 'beijing')) | Join(t1.id=t2.id) / \ Project(t1.id, t1.s) Project(t2.id) | | Scan(t1) Scan(t2) ``` optimize plan: ``` Project(coalecse(slot#3, 'beijing')) | Join(t1.id=t2.id) / \ Project(t1.id, struct_element(t1.s, 'city')#3) Project(t2.id) | | Scan(t1) Scan(t2) ``` (cherry picked from commit c30c0ff)
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yiguolei
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Dec 24, 2025
…rning (#59286) ### What problem does this PR solve? Problem Summary: ### Release note Cherry-pick #58370 #58354 #59043 #58851 #58485 #58682 #58614 #58373 #57204 #58719 #58471 #58573 #58657 ### Check List (For Author) - Test <!-- At least one of them must be included. --> - [ ] Regression test - [ ] Unit Test - [ ] Manual test (add detailed scripts or steps below) - [ ] No need to test or manual test. Explain why: - [ ] This is a refactor/code format and no logic has been changed. - [ ] Previous test can cover this change. - [ ] No code files have been changed. - [ ] Other reason <!-- Add your reason? --> - Behavior changed: - [ ] No. - [ ] Yes. <!-- Explain the behavior change --> - Does this need documentation? - [ ] No. - [ ] Yes. <!-- Add document PR link here. eg: apache/doris-website#1214 --> ### Check List (For Reviewer who merge this PR) - [ ] Confirm the release note - [ ] Confirm test cases - [ ] Confirm document - [ ] Add branch pick label <!-- Add branch pick label that this PR should merge into --> --------- Co-authored-by: 924060929 <lanhuajian@selectdb.com> Co-authored-by: Jerry Hu <mrhhsg@gmail.com> Co-authored-by: Jerry Hu <hushenggang@selectdb.com> Co-authored-by: lihangyu <lihangyu@selectdb.com>
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What problem does this PR solve?
optimize push down project, this can reduce the scan bytes and shuffle bytes by prune nested column. #57204 related
the sql:
original plan:
optimize plan:
Check List (For Author)
Test
Behavior changed:
Does this need documentation?
Check List (For Reviewer who merge this PR)