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branch-4.0: [opt](memory) reuse tablet schema in load path #58476 - #58847
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### What problem does this PR solve? #### Background `build_current_tablet_schema` may consume a significant amount of memory when load to a wide table with a large number of buckets: <img width="716" height="718" alt="image" src="https://github.com/user-attachments/assets/0b08c807-39df-4ab5-b7af-5896e1265009" /> #### Solution Reuse tablet schema in load path to save load memory. #### Test Result Machine configuration: 16c 64G 3BE Table Schema: 5000 column, 256 bucket Each Be reduces 1G memory.
Thearas
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Dec 9, 2025
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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Thearas
commented
Dec 9, 2025
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run buildall |
hello-stephen
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Dec 9, 2025
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BE UT Coverage ReportIncrement line coverage Increment coverage report
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sollhui
commented
Jan 5, 2026
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run buildall |
hello-stephen
commented
Jan 5, 2026
Contributor
BE UT Coverage ReportIncrement line coverage Increment coverage report
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yiguolei
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Jan 5, 2026
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PR approved by at least one committer and no changes requested. |
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PR approved by anyone and no changes requested. |
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ybtsdst pushed a commit
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Feb 27, 2026
… (apache#58847) Cherry-picked from apache#58476 Co-authored-by: hui lai <laihui@selectdb.com>
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Cherry-picked from #58476