Interface DictionaryEncodedStringValueIndex
- All Superinterfaces:
DictionaryEncodedValueIndex<String>
- All Known Implementing Classes:
IndexedStringDictionaryEncodedStringValueIndex
This exposes a 'raw' view into bitmap value indexes of a string
DictionaryEncodedColumn. This allows callers
to directly retrieve bitmaps via dictionary ids, as well as access to lower level details of such a column like
value lookup and value cardinality.
Most filter implementations should likely be using higher level index instead, such as StringValueSetIndexes,
LexicographicalRangeIndexes, NumericRangeIndexes, or DruidPredicateIndexes-
Method Summary
Methods inherited from interface org.apache.druid.segment.index.semantic.DictionaryEncodedValueIndex
getBitmap, getBitmapFactory, getCardinality, getValue, getValueIterator