feat(spill): optimize external sort with SpillFileMerger to reduce write amplification#288

Merged

zjw1111 merged 19 commits into

alibaba:mainfrom

zjw1111:optimize-spill-performance

May 20, 2026

Commits on May 18, 2026

feat(spill): optimize external sort with leveled merger to reduce write amplification

zjw1111
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claude
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style: fix code style issues in leveled merger

zjw1111
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claude
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fix(test): adapt tests to leveled merger behavior

zjw1111
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claude
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fix: reset merge_function_wrapper on flush error to prevent use-after-free

zjw1111
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claude
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Merge branch 'main' into optimize-spill-performance
lxy-9602
authored
fix: reset merge_function_wrapper in SortMergeReader::Close to prevent use-after-free

zjw1111
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claude
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Commits on May 20, 2026