ClusterSchemaTree fetchDeviceLevelRawSchema(
      PathPatternTree patternTree, PathPatternTree authorityScope, MPPQueryContext context) {
    return executeSchemaFetchQuery(
        new DeviceSchemaFetchStatement(patternTree, authorityScope), context);
  }
This method is used for scenarios that patternTree has no wildcard and the result should be
cached.

@param fullPathList all the fullPath without wildcard split from rawPatternTree
@param rawPatternTree the pattern tree consisting of the fullPathList
@return fetched schema
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/analyze/schema/ClusterSchemaFetchExecutor.java