private boolean isTensorTypeThatSupportsDirectStore(ImmutableSDField field) {
        var type = ((TensorDataType)field.getDataType()).getTensorType();
        // Tensors with at least one mapped/sparse dimensions can be "direct"
        // (currenty triggered by fast-search flag)
        for (var dim : type.dimensions()) {
            if (dim.isMapped()) {
                return true;
            }
        }
        return false;
    }
Returns whether the given tensor type supports using HNSW index and
nearest neighbor search.
config-model/src/main/java/com/yahoo/schema/processing/TensorFieldProcessor.java