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[feat](nereids) count prefix index in CBO #34970
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Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
run buildall |
run p0 |
run buildall |
run buildall |
1 similar comment
run buildall |
run buildall |
TPC-H: Total hot run time: 41151 ms
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TPC-DS: Total hot run time: 171722 ms
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ClickBench: Total hot run time: 30.92 s
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run buildall |
run performance |
TPC-H: Total hot run time: 41398 ms
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TPC-DS: Total hot run time: 172873 ms
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ClickBench: Total hot run time: 30.03 s
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starocean999
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seawinde
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M1saka2003
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May 24, 2024
1. if prefix index is choosen, lower the filter cost in CBO. MV and OlapTable could have different prefix index. it help us to choose a plan which leaverages prefix index. 2. for join cost: if left.rowcount==right.rowcount, we will choose the wider (stats.getWidthInJoinCluster()) child as left child, since we prefer left deep tree.
dataroaring
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May 26, 2024
1. if prefix index is choosen, lower the filter cost in CBO. MV and OlapTable could have different prefix index. it help us to choose a plan which leaverages prefix index. 2. for join cost: if left.rowcount==right.rowcount, we will choose the wider (stats.getWidthInJoinCluster()) child as left child, since we prefer left deep tree.
seawinde
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to seawinde/doris
that referenced
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May 27, 2024
1. if prefix index is choosen, lower the filter cost in CBO. MV and OlapTable could have different prefix index. it help us to choose a plan which leaverages prefix index. 2. for join cost: if left.rowcount==right.rowcount, we will choose the wider (stats.getWidthInJoinCluster()) child as left child, since we prefer left deep tree.
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