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[Feature] Extract plan features#55094

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murphyatwork wants to merge 17 commits intoStarRocks:mainStarRocks/starrocks:mainfrom murphyatwork:murphy_feat_plan_featuresmurphyatwork/starrocks:murphy_feat_plan_featuresCopy head branch name to clipboard

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Commits on Jan 15, 2025

• refine cost model for certain operators

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• simplify the cost

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• record plan features into log

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• tmp

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• refactor

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• add join operator features

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• add agg operator features

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• add env features

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• record features only for SELECT

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• change config

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• add exchange operator features

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• add avg row size as feature

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• apply transformation encoding

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• change log format

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• change log4j config

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• fix code style

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• log transform the memory limit

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