question: @ Override public List < byte [ ] > read ( long startOffset ) throws IOException { List < CarbonDictionaryColumnMetaChunk > carbonDictionaryColumnMetaChunks = readDictionaryMetadataFile ( ) ; CarbonDictionaryColumnMetaChunk carbonDictionaryColumnMetaChunk = carbonDictionaryColumnMetaChunks . get ( carbonDictionaryColumnMetaChunks . size ( ) - 1 ) ; long endOffset = carbonDictionaryColumnMetaChunk . getEnd_offset ( ) ; return read ( carbonDictionaryColumnMetaChunks , startOffset , endOffset ) ; }
target:  This method should be used when data has to be read from a given offset. Applicable scenarios : 1. Incremental data load. If column dictionary is already loaded in memory and incremental load is done, then for the new query only new dictionary data has to be read form memory.