PlantUML Web Server

@startuml
class Table {
    +ColAndIdxExistenceMap *ColAndIdxExistenceMap
    +HistColl HistColl
    +Version uint64
    +LastAnalyzeVersion uint64
}

class ColAndIdxExistenceMap {
    +checked bool
    +colAnalyzed map[int64]bool
    +idxAnalyzed map[int64]bool
}

class HistColl {
    +columns map[int64]*Column
    +indices map[int64]*Index
    +PhysicalID int64
    +RealtimeCount int64
    +ModifyCount int64
    +StatsVer int
    +Pseudo bool
}

class Column {
    +LastAnalyzePos types.Datum
    +TopN *TopN
    +Info *model.ColumnInfo
    +Histogram Histogram
    +StatsLoadedStatus StatsLoadedStatus
    +PhysicalID int64
    +StatsVer int64
    +IsHandle bool
}

class Index {
    +LastAnalyzePos types.Datum
    +TopN *TopN
    +Info *model.IndexInfo
    +Histogram Histogram
    +StatsLoadedStatus StatsLoadedStatus
    +StatsVer int64
    +PhysicalID int64
}

class Histogram {
    +Tp *types.FieldType
    +Bounds *chunk.Chunk
    +Buckets []Bucket
    +Scalars []scalar
    +ID int64
    +NDV int64
    +NullCount int64
    +LastUpdateVersion uint64
    +Correlation float64
}

class Bucket {
    +Count int64
    +Repeat int64
    +NDV int64
}

Table "1" -- "1" ColAndIdxExistenceMap
Table "1" -- "1" HistColl
HistColl "1" -- "*" Column
HistColl "1" -- "*" Index 
Column "1" -- "1" Histogram
Index "1" -- "1" Histogram
Histogram "1" -- "*" Bucket
@enduml

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