public boolean isUnderAlignedDevice() {
                return getParentOfNextMatchedNode().getAsDeviceMNode().isAligned();
              }
Currently, this method is only used for pin node get from mNodeCache

@param node
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/schemaengine/schemaregion/mtree/impl/pbtree/MTreeBelowSGCachedImpl.java