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HLL in YT statistics #8184
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HLL in YT statistics #8184
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ydb/library/yql/providers/yt/provider/phy_opt/yql_yt_phy_opt_join.cpp
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Use StatisticsCache and TYtLoadColumnarStatsTransformer. EYtSettingType::ExtendedStatColumns triggers loading extended columnar statistics, protected by pragma.
Change log messages in ExecPathStat() by including full RichYPath, with columns.
Put sort columns and per-column data weight into TYtProviderStatistic. These fields will be used later in the cbo cost function.