Package org.apache.druid.query.groupby.epinephelinae.column
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Interface Summary Interface Description DimensionIdCodec<DimensionType> Dimension to integer id encoder - decoder i.e.GroupByColumnSelectorStrategy Contains a collection of query processing methods for type-specific operations used exclusively by GroupByQueryEngineV2. -
Class Summary Class Description DictionaryBuildingGroupByColumnSelectorStrategy<DimensionType> Strategy for grouping dimensions which can have variable-width objects, and aren't backed by prebuilt dictionaries.FixedWidthGroupByColumnSelectorStrategy<T> Strategy for grouping dimensions which have fixed-width objects.GroupByColumnSelectorPlus KeyMappingMultiValueGroupByColumnSelectorStrategy LikeKeyMappingGroupByColumnSelectorStrategy, but for multi-value dimensions, i.e.KeyMappingMultiValueGroupByColumnSelectorStrategy.DictionaryBuilding KeyMappingMultiValueGroupByColumnSelectorStrategy.PrebuiltDictionary MemoryFootprint<T> Holder for a value and the memory increase in the internal dictionary associated with the increase