Examples of org.exist.indexing.range.RangeIndexWorker.queryField()

        }
        DocumentSet docs = contextSequence.getDocumentSet();


        RangeIndexWorker index = (RangeIndexWorker) context.getBroker().getIndexController().getWorkerByIndexId(RangeIndex.ID);
        try {
            preselectResult = index.queryField(getExpressionId(), docs, useContext ? contextSequence.toNodeSet() : null, fieldSeq, keys, operators, NodeSet.DESCENDANT);
        } catch (IOException e) {
            throw new XPathException(this, "Error while querying full text index: " + e.getMessage(), e);
        }
        LOG.info("preselect for " + Arrays.toString(keys) + " on " + contextSequence.getItemCount() + "returned " + preselectResult.getItemCount() +
                " and took " + (System.currentTimeMillis() - start));

                throw new XPathException(this, "Number of keys to look up must correspond to number of fields specified");
            }
            RangeIndexWorker index = (RangeIndexWorker) context.getBroker().getIndexController().getWorkerByIndexId(RangeIndex.ID);


            try {
                result = index.queryField(getExpressionId(), docs, contextSet, fields, keys, operators, NodeSet.DESCENDANT);
                if (contextSet != null) {
                    if (fallback != null && (fallback.getPrimaryAxis() == Constants.CHILD_AXIS || fallback.getPrimaryAxis() == Constants.ATTRIBUTE_AXIS)) {
                        result = result.selectParentChild(contextSet, NodeSet.DESCENDANT, getContextId());
                    } else {
                        result = result.selectAncestorDescendant(contextSet, NodeSet.DESCENDANT, true, getContextId(), true);

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