add DictionaryEncodedValueIndex.getValueIterator and use it for ExpressionPredicateIndexSupplier#19023

clintropolis merged 4 commits intoapache:masterapache/druid:masterfrom

clintropolis:use-dictionary-iterator-for-expression-predicate-index-supplierclintropolis/druid:use-dictionary-iterator-for-expression-predicate-index-supplierCopy head branch name to clipboard