private boolean hasIndexingModeIndexed(NewDocumentType type) {
        if (searchCluster == null) return false;
        var schemaInfo = searchCluster.schemas().get(type.getName());
        return (schemaInfo != null) && (schemaInfo.getIndexMode() == SchemaInfo.IndexMode.INDEX);
    }
Translates group ids to continuous 0-base "row" id integers
config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java