[refactor](pipeline) refactor local merge sort operator#48360

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Mryange wants to merge 6 commits intoapache:masterfrom Mryange:Refactor-local-merge

+524-657

Commits on Mar 2, 2025

remove old
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refactor
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Commits on Mar 5, 2025

Comment
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add be ut
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Commits on Mar 6, 2025

thrift
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format-fe
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