NYT::TTableColumnarStatistics Struct Reference

Statistics about table columns. More...

#include <common.h>

Public Attributes
THashMap< TString, i64 >	ColumnDataWeight
	Total data weight for all chunks for each of requested columns.
THashMap< TString, ui64 >	ColumnEstimatedUniqueCounts
	Estimated number of unique elements for each column.
i64	LegacyChunksDataWeight = 0
	Total weight of all old chunks that don't keep columnar statistics.
TMaybe< i64 >	TimestampTotalWeight
	Timestamps total weight (only for dynamic tables).

Detailed Description

Statistics about table columns.

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The documentation for this struct was generated from the following file:

• yt/cpp/mapreduce/interface/common.h